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Looking for a soft substance that doesn't dissolve underwater
What could an aquatic civilization use to write on/with?What are the design considerations for my underwater settlement?An underwater creature that could take down a boatCartilaginous mermaid or bony mermaid best for adapting underwater?What would make good clothing for an underwater species?How can a substance that doesn't follow the laws of physics look and feel like ordinary matter?Reliable Source of Heat for Underwater Society?What material should be used for a spaceship that doesn't need to re-enter?Weapon that can destroy an underwater city?Are there any structural materials suitable for production underwater?Foundation For An Underwater Dome
$begingroup$
I'm writing a story that takes place entirely underwater, mostly in a deep sea town and shallower city. Both are underwater and populated by beings who can survive underwater.
My thinking is that they send messages to each other by taking a soft clay-like material (let's call it substance x until someone thinks of what it should be) and writing on it, then giving it to a messenger. The messenger takes this wad of substance x with the writing on it and delivers it to the recipient.
When they are done the wad is given back, the letters are smushed away, and it is reused. What material should this be?
It needs to be something that can be made of substances found in the ocean, can be made underwater, doesn't dissolve into the saltwater, lasts a fairly long time, and is inexpensive.
Is there a real-world substance that meets all these requirements, or am I gonna have to make something up?
communication materials underwater
edited May 23 at 23:29
Cyn
14.7k23069
asked May 23 at 21:36
John LewisJohn Lewis
26629
$endgroup$
add a comment |
$begingroup$
I'm writing a story that takes place entirely underwater, mostly in a deep sea town and shallower city. Both are underwater and populated by beings who can survive underwater.
My thinking is that they send messages to each other by taking a soft clay-like material (let's call it substance x until someone thinks of what it should be) and writing on it, then giving it to a messenger. The messenger takes this wad of substance x with the writing on it and delivers it to the recipient.
When they are done the wad is given back, the letters are smushed away, and it is reused. What material should this be?
It needs to be something that can be made of substances found in the ocean, can be made underwater, doesn't dissolve into the saltwater, lasts a fairly long time, and is inexpensive.
Is there a real-world substance that meets all these requirements, or am I gonna have to make something up?
communication materials underwater
edited May 23 at 23:29
Cyn
14.7k23069
asked May 23 at 21:36
John LewisJohn Lewis
26629
$endgroup$
2
$begingroup$
I read the title of your question and immediately thought "BluTac!" Alas, it is not a valid answer to your question :(
$endgroup$
– Montgomery 'monty' Jones
May 24 at 10:32
4
$begingroup$
Oh wait! This is a duplicate of worldbuilding.stackexchange.com/questions/59791/…. I didn't even notice before I wrote my answer.
$endgroup$
– Cloudy7
May 24 at 20:06
3
$begingroup$
Possible duplicate of What could an aquatic civilization use to write on/with?
$endgroup$
– Criggie
May 25 at 3:39
2
$begingroup$
Its only a duplicate if you ignore the "soft substance which retains writing but can be smoothed flat" requirement. The linked duplicate doesn't mention spermaceti. for @Cloudy7 example.
$endgroup$
– Starfish Prime
May 25 at 19:00
add a comment |
$begingroup$
I'm writing a story that takes place entirely underwater, mostly in a deep sea town and shallower city. Both are underwater and populated by beings who can survive underwater.
My thinking is that they send messages to each other by taking a soft clay-like material (let's call it substance x until someone thinks of what it should be) and writing on it, then giving it to a messenger. The messenger takes this wad of substance x with the writing on it and delivers it to the recipient.
When they are done the wad is given back, the letters are smushed away, and it is reused. What material should this be?
It needs to be something that can be made of substances found in the ocean, can be made underwater, doesn't dissolve into the saltwater, lasts a fairly long time, and is inexpensive.
Is there a real-world substance that meets all these requirements, or am I gonna have to make something up?
communication materials underwater
edited May 23 at 23:29
Cyn
14.7k23069
asked May 23 at 21:36
John LewisJohn Lewis
26629
$endgroup$
I'm writing a story that takes place entirely underwater, mostly in a deep sea town and shallower city. Both are underwater and populated by beings who can survive underwater.
My thinking is that they send messages to each other by taking a soft clay-like material (let's call it substance x until someone thinks of what it should be) and writing on it, then giving it to a messenger. The messenger takes this wad of substance x with the writing on it and delivers it to the recipient.
When they are done the wad is given back, the letters are smushed away, and it is reused. What material should this be?
It needs to be something that can be made of substances found in the ocean, can be made underwater, doesn't dissolve into the saltwater, lasts a fairly long time, and is inexpensive.
Is there a real-world substance that meets all these requirements, or am I gonna have to make something up?
communication materials underwater
communication materials underwater
edited May 23 at 23:29
Cyn
14.7k23069
asked May 23 at 21:36
John LewisJohn Lewis
26629
edited May 23 at 23:29
Cyn
14.7k23069
asked May 23 at 21:36
John LewisJohn Lewis
26629
edited May 23 at 23:29
Cyn
14.7k23069
edited May 23 at 23:29
Cyn
14.7k23069
edited May 23 at 23:29
Cyn
14.7k23069
14.7k23069
asked May 23 at 21:36
John LewisJohn Lewis
26629
asked May 23 at 21:36
John LewisJohn Lewis
26629
asked May 23 at 21:36
John LewisJohn Lewis
26629
26629
2
$begingroup$
I read the title of your question and immediately thought "BluTac!" Alas, it is not a valid answer to your question :(
$endgroup$
– Montgomery 'monty' Jones
May 24 at 10:32
4
$begingroup$
Oh wait! This is a duplicate of worldbuilding.stackexchange.com/questions/59791/…. I didn't even notice before I wrote my answer.
$endgroup$
– Cloudy7
May 24 at 20:06
3
$begingroup$
Possible duplicate of What could an aquatic civilization use to write on/with?
$endgroup$
– Criggie
May 25 at 3:39
2
$begingroup$
Its only a duplicate if you ignore the "soft substance which retains writing but can be smoothed flat" requirement. The linked duplicate doesn't mention spermaceti. for @Cloudy7 example.
$endgroup$
– Starfish Prime
May 25 at 19:00
add a comment |
2
$begingroup$
I read the title of your question and immediately thought "BluTac!" Alas, it is not a valid answer to your question :(
$endgroup$
– Montgomery 'monty' Jones
May 24 at 10:32
4
$begingroup$
Oh wait! This is a duplicate of worldbuilding.stackexchange.com/questions/59791/…. I didn't even notice before I wrote my answer.
$endgroup$
– Cloudy7
May 24 at 20:06
3
$begingroup$
Possible duplicate of What could an aquatic civilization use to write on/with?
$endgroup$
– Criggie
May 25 at 3:39
2
$begingroup$
Its only a duplicate if you ignore the "soft substance which retains writing but can be smoothed flat" requirement. The linked duplicate doesn't mention spermaceti. for @Cloudy7 example.
$endgroup$
– Starfish Prime
May 25 at 19:00
2
2
$begingroup$
I read the title of your question and immediately thought "BluTac!" Alas, it is not a valid answer to your question :(
$endgroup$
– Montgomery 'monty' Jones
May 24 at 10:32
$begingroup$
I read the title of your question and immediately thought "BluTac!" Alas, it is not a valid answer to your question :(
$endgroup$
– Montgomery 'monty' Jones
May 24 at 10:32
4
4
$begingroup$
Oh wait! This is a duplicate of worldbuilding.stackexchange.com/questions/59791/…. I didn't even notice before I wrote my answer.
$endgroup$
– Cloudy7
May 24 at 20:06
$begingroup$
Oh wait! This is a duplicate of worldbuilding.stackexchange.com/questions/59791/…. I didn't even notice before I wrote my answer.
$endgroup$
– Cloudy7
May 24 at 20:06
3
3
$begingroup$
Possible duplicate of What could an aquatic civilization use to write on/with?
$endgroup$
– Criggie
May 25 at 3:39
$begingroup$
Possible duplicate of What could an aquatic civilization use to write on/with?
$endgroup$
– Criggie
May 25 at 3:39
2
2
$begingroup$
Its only a duplicate if you ignore the "soft substance which retains writing but can be smoothed flat" requirement. The linked duplicate doesn't mention spermaceti. for @Cloudy7 example.
$endgroup$
– Starfish Prime
May 25 at 19:00
$begingroup$
Its only a duplicate if you ignore the "soft substance which retains writing but can be smoothed flat" requirement. The linked duplicate doesn't mention spermaceti. for @Cloudy7 example.
$endgroup$
– Starfish Prime
May 25 at 19:00
add a comment |
10 Answers
10
active
oldest
votes
$begingroup$
What you described is an old invention:the wax tablet.
Spermaceti from sperm whales is just one of many waxes your underwater people could use. Some of the fishes also contain significant quantities of wax. If you need only a short-term solution, animal fat would also do the job.
I couldn't find any seaweed that secretes waxes, so I hope your underwater people are not vegan.
edited May 24 at 17:18
jdunlop
8,80412050
answered May 23 at 21:46
MołotMołot
29.1k1290135
$endgroup$
$begingroup$
Agh, I was just about to hit "post" on that very idea
$endgroup$
– Starfish Prime
May 23 at 21:47
3
$begingroup$
@StarfishPrime have a +1 from me :)
$endgroup$
– Mołot
May 23 at 21:49
8
$begingroup$
+1 for correct use of fishes.
$endgroup$
– user1717828
May 24 at 17:05
6
$begingroup$
@JoeBloggs, Yes, you can use sheeps in both academic and colloquial settings. If anyone questions it, you have my permission to rely fully on the authority of internet citizenuser1717828.
$endgroup$
– user1717828
May 24 at 19:36
2
$begingroup$
A wax tablet is called a tabula, and the writing tool is a stylus. There's a good chapter about the tabula in Writing on the Wall.
$endgroup$
– Walter Mitty
May 25 at 2:07
|
show 1 more comment
$begingroup$
Braids of seaweed.
The ancient Inca used knotted fibers, or quipu, to record events and information. With enough effort, seaweed could be manipulated (slicing then braiding) into thin cords, which could then function in a similar way as quipu. I wouldn't be sure about the lifespan of these cords -- it depends on the manufacturing process -- but these makeshift quipu could have knots tied or untied, and would be relatively light or even buoyant in water.
edited May 24 at 20:53
Cain
2,1181024
answered May 24 at 4:22
Cloudy7Cloudy7
54129
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4
$begingroup$
Not dumb. I was think of knotted seaweed myself but didn't know how to make it work. I didn't know about quipu and appreciate the chance to learn about it. Welcome to Worldbuilding.SE.
$endgroup$
– Cyn
May 24 at 4:49
1
$begingroup$
Quipus could not only record numbers on a string. They could also convey what IT people would call a tree structure, by attaching substrings to strings. The quipucamayoq, expert in this, could convey very detailed and subtle info. If you have this, you almost don't need an alphabet.
$endgroup$
– Walter Mitty
May 25 at 10:49
add a comment |
$begingroup$
You don't have to go back in time very far to reach a point where marine-derived hydrocarbons pretty much made the world go round. The catch being that you have to kill rather intelligent, large and dangerous predators who share your environment.
Enter the sperm whale, whose head is filled with an extremely useful collection of waxes and oils which may be extracted and refined to produce exactly the sort of material you'd be interested in. By way of a bonus, it also produces another kind of oily wax, ambergris. This is much rarer, so you would only use it for special occasions, but it would still suffice.
In both cases, you want to keep your message tablets safe in a heavy container or framework, as the waxes would be lighter than water and quickly lost if dropped.
Waxy molecules are found in various marine plants and animals in smaller quantities, so you don't have to wave your hands too hard to invent something slightly more easily and ethically sourceable. The main waxy component of spermaceti, cetyl palmitate is found in some corals. I'm sure you could conjure up a wax coral or sponge that produced it in usefully harvest-able quantities
edited May 24 at 19:33
Joe Bloggs
37.8k20106189
answered May 23 at 21:48
Starfish PrimeStarfish Prime
3,875731
$endgroup$
add a comment |
$begingroup$
If you want a pliable material that can be collected undersea without having to kill anything, you might want to consider a bituminous clay or asphalt-like material formed in the vicinity of an undersea asphalt volcano.
High viscosity hydrocarbon fluids mixed with fine silt or sand produce an oil-based clay-like substance that can be scraped or carved to form letters. The marks will last a long time as long as the temperature remains below a certain point, but can easily be erased by simply heating the surface via friction. Rapidly rubbing the surface softens and smooths the markings.
answered May 24 at 17:06
barbecuebarbecue
620411
$endgroup$
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Clay is not water-soluble, especially if it's oil based, +1
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– Mazura
May 24 at 19:00
1
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I can see "heating via friction" being awkward for what would appear to be a minimally technological underwater society...
$endgroup$
– Starfish Prime
May 25 at 9:21
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I specifically mentioned heating via friction because it does not require any advanced technology and can be done underwater, unlike other options such as fire or solar heating.
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– barbecue
May 25 at 18:36
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@barbecue: The water is going to carry away the thermal energy resulting from friction very quickly without much increase in temperature of the "tablet"
$endgroup$
– Ben Voigt
May 25 at 21:49
1
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@BenVoigt I don't think you fully appreciate the physics involved. The friction occurs at the point of contact between two surfaces. There is very little water in between the two surfaces, and the small amount that may be there is easily heated. The fact that the heat may be rapidly dissipated by the water once you separate the surfaces is irrelevant, because the softening and reshaping of the surface has already occurred at that point.
$endgroup$
– barbecue
May 26 at 16:09
add a comment |
$begingroup$
Maybe not 100% what you’re looking for, but you could use the bones of aquatic animals to carve into (I’m thinking a runic alphabet like Ogham, which was designed to be notched into materials like wood). Then, when you’re done with the message, you can file the surface smooth and start again. Obviously this will wear out the bones over time, but it might work as a temporary solution (and fairly easy to implement, as bones are probably going to be relatively abundant in a decently-populated underwater civilisation).
answered May 24 at 23:28
K. PriceK. Price
3,1071826
$endgroup$
add a comment |
$begingroup$
I like that we are trying to find a realistic substance to suit some wonderfully unrealistic characters! I think the sperm whale may be the winner but my immediate thought was putty; the smooshy stuff they used use to put window panes in place. It's sort of fawn colored and can be scribbled on. Its waterproof for sure, to keep the rain out but fully underwater, I don't know...Good luck, I love the idea of your underwater community :)
(If you are stuck, maybe they can blow bubbles in the manner of old smoke signals?! )
edited May 26 at 3:56
Brythan
21.9k84388
answered May 24 at 14:54
ShooShoo
211
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3
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Hmm... how would we derive putty from underwater substances? The question asks for substances found underwater =)
$endgroup$
– Cloudy7
May 24 at 15:14
add a comment |
$begingroup$
Why does the substance have to be soft? Scraping on a rock (slate) with another rock (chalk) would work as well underwater as it does above.
answered May 24 at 16:51
Facefire91Facefire91
191
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Chalk washes off a little too easily.
$endgroup$
– Mark
May 24 at 21:43
add a comment |
$begingroup$
I'll answer your question very generic, so you can use it not only for writing tablets, but ANYTHING in your underwater world.
What you are looking for are hydrophobic substances such as oil, fat or wax.
For your writing you'll want fat-derived substances, given that wax will be too hard in the cold.
But simply take a light granite tablet and slather some thickened, darkened grease on it.
By "writing" on it you get light letters on a dark surface, and with your fingers or a simple ruler you can "delete" writing as well instantly.
answered May 25 at 22:45
HobbamokHobbamok
1,711412
$endgroup$
add a comment |
$begingroup$
If your race as access to metals, and if they are stronger than humans, gold would be the perfect match.
Especially if they're somewhat advanced, as there's a lot of gold floating in the oceans.
The gold could be filtered out they would have a more or less infinite source.
answered May 25 at 9:19
Thorbjørn E. K. ChristensenThorbjørn E. K. Christensen
1011
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I suspect if they were technologically advanced enough to extract macroscopic amounts of gold from seawater, they wouldn't be looking for a wax tablet substitute.
$endgroup$
– Starfish Prime
May 25 at 9:22
add a comment |
$begingroup$
Fish
Carve the message into a fish, the recipient eats the fish and sends back another fish with reply carved into it.
answered May 24 at 12:16
PIXIE94PIXIE94
17
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3
$begingroup$
I'm pretty certain that dead fish will fail the "lasts a fairly long time" requirement. Also, writing legibly on a fish by carving is not straightfoward (I invite you to try; please supply pictures) especially if you want to write fairly densely.
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– Starfish Prime
May 24 at 12:53
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@StarfishPrime What about a big fish? Like a whale
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– Halhex
May 24 at 14:07
10
$begingroup$
@Halhex no matter how big the whale is, it still isn't a fish.
$endgroup$
– MikeTheLiar
May 24 at 14:33
add a comment |
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10 Answers
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active
oldest
votes
10 Answers
10
active
oldest
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active
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votes
$begingroup$
What you described is an old invention:the wax tablet.
Spermaceti from sperm whales is just one of many waxes your underwater people could use. Some of the fishes also contain significant quantities of wax. If you need only a short-term solution, animal fat would also do the job.
I couldn't find any seaweed that secretes waxes, so I hope your underwater people are not vegan.
edited May 24 at 17:18
jdunlop
8,80412050
answered May 23 at 21:46
MołotMołot
29.1k1290135
$endgroup$
$begingroup$
Agh, I was just about to hit "post" on that very idea
$endgroup$
– Starfish Prime
May 23 at 21:47
3
$begingroup$
@StarfishPrime have a +1 from me :)
$endgroup$
– Mołot
May 23 at 21:49
8
$begingroup$
+1 for correct use of fishes.
$endgroup$
– user1717828
May 24 at 17:05
6
$begingroup$
@JoeBloggs, Yes, you can use sheeps in both academic and colloquial settings. If anyone questions it, you have my permission to rely fully on the authority of internet citizenuser1717828.
$endgroup$
– user1717828
May 24 at 19:36
2
$begingroup$
A wax tablet is called a tabula, and the writing tool is a stylus. There's a good chapter about the tabula in Writing on the Wall.
$endgroup$
– Walter Mitty
May 25 at 2:07
|
show 1 more comment
$begingroup$
What you described is an old invention:the wax tablet.
Spermaceti from sperm whales is just one of many waxes your underwater people could use. Some of the fishes also contain significant quantities of wax. If you need only a short-term solution, animal fat would also do the job.
I couldn't find any seaweed that secretes waxes, so I hope your underwater people are not vegan.
edited May 24 at 17:18
jdunlop
8,80412050
answered May 23 at 21:46
MołotMołot
29.1k1290135
$endgroup$
$begingroup$
Agh, I was just about to hit "post" on that very idea
$endgroup$
– Starfish Prime
May 23 at 21:47
3
$begingroup$
@StarfishPrime have a +1 from me :)
$endgroup$
– Mołot
May 23 at 21:49
8
$begingroup$
+1 for correct use of fishes.
$endgroup$
– user1717828
May 24 at 17:05
6
$begingroup$
@JoeBloggs, Yes, you can use sheeps in both academic and colloquial settings. If anyone questions it, you have my permission to rely fully on the authority of internet citizenuser1717828.
$endgroup$
– user1717828
May 24 at 19:36
2
$begingroup$
A wax tablet is called a tabula, and the writing tool is a stylus. There's a good chapter about the tabula in Writing on the Wall.
$endgroup$
– Walter Mitty
May 25 at 2:07
|
show 1 more comment
$begingroup$
What you described is an old invention:the wax tablet.
Spermaceti from sperm whales is just one of many waxes your underwater people could use. Some of the fishes also contain significant quantities of wax. If you need only a short-term solution, animal fat would also do the job.
I couldn't find any seaweed that secretes waxes, so I hope your underwater people are not vegan.
edited May 24 at 17:18
jdunlop
8,80412050
answered May 23 at 21:46
MołotMołot
29.1k1290135
$endgroup$
What you described is an old invention:the wax tablet.
Spermaceti from sperm whales is just one of many waxes your underwater people could use. Some of the fishes also contain significant quantities of wax. If you need only a short-term solution, animal fat would also do the job.
I couldn't find any seaweed that secretes waxes, so I hope your underwater people are not vegan.
edited May 24 at 17:18
jdunlop
8,80412050
answered May 23 at 21:46
MołotMołot
29.1k1290135
edited May 24 at 17:18
jdunlop
8,80412050
edited May 24 at 17:18
jdunlop
8,80412050
edited May 24 at 17:18
jdunlop
8,80412050
8,80412050
answered May 23 at 21:46
MołotMołot
29.1k1290135
answered May 23 at 21:46
MołotMołot
29.1k1290135
answered May 23 at 21:46
MołotMołot
29.1k1290135
29.1k1290135
$begingroup$
Agh, I was just about to hit "post" on that very idea
$endgroup$
– Starfish Prime
May 23 at 21:47
3
$begingroup$
@StarfishPrime have a +1 from me :)
$endgroup$
– Mołot
May 23 at 21:49
8
$begingroup$
+1 for correct use of fishes.
$endgroup$
– user1717828
May 24 at 17:05
6
$begingroup$
@JoeBloggs, Yes, you can use sheeps in both academic and colloquial settings. If anyone questions it, you have my permission to rely fully on the authority of internet citizenuser1717828.
$endgroup$
– user1717828
May 24 at 19:36
2
$begingroup$
A wax tablet is called a tabula, and the writing tool is a stylus. There's a good chapter about the tabula in Writing on the Wall.
$endgroup$
– Walter Mitty
May 25 at 2:07
|
show 1 more comment
$begingroup$
Agh, I was just about to hit "post" on that very idea
$endgroup$
– Starfish Prime
May 23 at 21:47
3
$begingroup$
@StarfishPrime have a +1 from me :)
$endgroup$
– Mołot
May 23 at 21:49
8
$begingroup$
+1 for correct use of fishes.
$endgroup$
– user1717828
May 24 at 17:05
6
$begingroup$
@JoeBloggs, Yes, you can use sheeps in both academic and colloquial settings. If anyone questions it, you have my permission to rely fully on the authority of internet citizenuser1717828.
$endgroup$
– user1717828
May 24 at 19:36
2
$begingroup$
A wax tablet is called a tabula, and the writing tool is a stylus. There's a good chapter about the tabula in Writing on the Wall.
$endgroup$
– Walter Mitty
May 25 at 2:07
$begingroup$
Agh, I was just about to hit "post" on that very idea
$endgroup$
– Starfish Prime
May 23 at 21:47
$begingroup$
Agh, I was just about to hit "post" on that very idea
$endgroup$
– Starfish Prime
May 23 at 21:47
3
3
$begingroup$
@StarfishPrime have a +1 from me :)
$endgroup$
– Mołot
May 23 at 21:49
$begingroup$
@StarfishPrime have a +1 from me :)
$endgroup$
– Mołot
May 23 at 21:49
8
8
$begingroup$
+1 for correct use of fishes.
$endgroup$
– user1717828
May 24 at 17:05
$begingroup$
+1 for correct use of fishes.
$endgroup$
– user1717828
May 24 at 17:05
6
6
$begingroup$
@JoeBloggs, Yes, you can use sheeps in both academic and colloquial settings. If anyone questions it, you have my permission to rely fully on the authority of internet citizen
user1717828.$endgroup$
– user1717828
May 24 at 19:36
$begingroup$
@JoeBloggs, Yes, you can use sheeps in both academic and colloquial settings. If anyone questions it, you have my permission to rely fully on the authority of internet citizen
user1717828.$endgroup$
– user1717828
May 24 at 19:36
2
2
$begingroup$
A wax tablet is called a tabula, and the writing tool is a stylus. There's a good chapter about the tabula in Writing on the Wall.
$endgroup$
– Walter Mitty
May 25 at 2:07
$begingroup$
A wax tablet is called a tabula, and the writing tool is a stylus. There's a good chapter about the tabula in Writing on the Wall.
$endgroup$
– Walter Mitty
May 25 at 2:07
|
show 1 more comment
$begingroup$
Braids of seaweed.
The ancient Inca used knotted fibers, or quipu, to record events and information. With enough effort, seaweed could be manipulated (slicing then braiding) into thin cords, which could then function in a similar way as quipu. I wouldn't be sure about the lifespan of these cords -- it depends on the manufacturing process -- but these makeshift quipu could have knots tied or untied, and would be relatively light or even buoyant in water.
edited May 24 at 20:53
Cain
2,1181024
answered May 24 at 4:22
Cloudy7Cloudy7
54129
New contributor
Cloudy7 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
$endgroup$
4
$begingroup$
Not dumb. I was think of knotted seaweed myself but didn't know how to make it work. I didn't know about quipu and appreciate the chance to learn about it. Welcome to Worldbuilding.SE.
$endgroup$
– Cyn
May 24 at 4:49
1
$begingroup$
Quipus could not only record numbers on a string. They could also convey what IT people would call a tree structure, by attaching substrings to strings. The quipucamayoq, expert in this, could convey very detailed and subtle info. If you have this, you almost don't need an alphabet.
$endgroup$
– Walter Mitty
May 25 at 10:49
add a comment |
$begingroup$
Braids of seaweed.
The ancient Inca used knotted fibers, or quipu, to record events and information. With enough effort, seaweed could be manipulated (slicing then braiding) into thin cords, which could then function in a similar way as quipu. I wouldn't be sure about the lifespan of these cords -- it depends on the manufacturing process -- but these makeshift quipu could have knots tied or untied, and would be relatively light or even buoyant in water.
edited May 24 at 20:53
Cain
2,1181024
answered May 24 at 4:22
Cloudy7Cloudy7
54129
New contributor
Cloudy7 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
$endgroup$
4
$begingroup$
Not dumb. I was think of knotted seaweed myself but didn't know how to make it work. I didn't know about quipu and appreciate the chance to learn about it. Welcome to Worldbuilding.SE.
$endgroup$
– Cyn
May 24 at 4:49
1
$begingroup$
Quipus could not only record numbers on a string. They could also convey what IT people would call a tree structure, by attaching substrings to strings. The quipucamayoq, expert in this, could convey very detailed and subtle info. If you have this, you almost don't need an alphabet.
$endgroup$
– Walter Mitty
May 25 at 10:49
add a comment |
$begingroup$
Braids of seaweed.
The ancient Inca used knotted fibers, or quipu, to record events and information. With enough effort, seaweed could be manipulated (slicing then braiding) into thin cords, which could then function in a similar way as quipu. I wouldn't be sure about the lifespan of these cords -- it depends on the manufacturing process -- but these makeshift quipu could have knots tied or untied, and would be relatively light or even buoyant in water.
edited May 24 at 20:53
Cain
2,1181024
answered May 24 at 4:22
Cloudy7Cloudy7
54129
New contributor
Cloudy7 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
$endgroup$
Braids of seaweed.
The ancient Inca used knotted fibers, or quipu, to record events and information. With enough effort, seaweed could be manipulated (slicing then braiding) into thin cords, which could then function in a similar way as quipu. I wouldn't be sure about the lifespan of these cords -- it depends on the manufacturing process -- but these makeshift quipu could have knots tied or untied, and would be relatively light or even buoyant in water.
edited May 24 at 20:53
Cain
2,1181024
answered May 24 at 4:22
Cloudy7Cloudy7
54129
New contributor
Cloudy7 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
edited May 24 at 20:53
Cain
2,1181024
edited May 24 at 20:53
Cain
2,1181024
edited May 24 at 20:53
Cain
2,1181024
2,1181024
answered May 24 at 4:22
Cloudy7Cloudy7
54129
New contributor
Cloudy7 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
answered May 24 at 4:22
Cloudy7Cloudy7
54129
answered May 24 at 4:22
Cloudy7Cloudy7
54129
54129
New contributor
Cloudy7 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
New contributor
Cloudy7 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
4
$begingroup$
Not dumb. I was think of knotted seaweed myself but didn't know how to make it work. I didn't know about quipu and appreciate the chance to learn about it. Welcome to Worldbuilding.SE.
$endgroup$
– Cyn
May 24 at 4:49
1
$begingroup$
Quipus could not only record numbers on a string. They could also convey what IT people would call a tree structure, by attaching substrings to strings. The quipucamayoq, expert in this, could convey very detailed and subtle info. If you have this, you almost don't need an alphabet.
$endgroup$
– Walter Mitty
May 25 at 10:49
add a comment |
4
$begingroup$
Not dumb. I was think of knotted seaweed myself but didn't know how to make it work. I didn't know about quipu and appreciate the chance to learn about it. Welcome to Worldbuilding.SE.
$endgroup$
– Cyn
May 24 at 4:49
1
$begingroup$
Quipus could not only record numbers on a string. They could also convey what IT people would call a tree structure, by attaching substrings to strings. The quipucamayoq, expert in this, could convey very detailed and subtle info. If you have this, you almost don't need an alphabet.
$endgroup$
– Walter Mitty
May 25 at 10:49
4
4
$begingroup$
Not dumb. I was think of knotted seaweed myself but didn't know how to make it work. I didn't know about quipu and appreciate the chance to learn about it. Welcome to Worldbuilding.SE.
$endgroup$
– Cyn
May 24 at 4:49
$begingroup$
Not dumb. I was think of knotted seaweed myself but didn't know how to make it work. I didn't know about quipu and appreciate the chance to learn about it. Welcome to Worldbuilding.SE.
$endgroup$
– Cyn
May 24 at 4:49
1
1
$begingroup$
Quipus could not only record numbers on a string. They could also convey what IT people would call a tree structure, by attaching substrings to strings. The quipucamayoq, expert in this, could convey very detailed and subtle info. If you have this, you almost don't need an alphabet.
$endgroup$
– Walter Mitty
May 25 at 10:49
$begingroup$
Quipus could not only record numbers on a string. They could also convey what IT people would call a tree structure, by attaching substrings to strings. The quipucamayoq, expert in this, could convey very detailed and subtle info. If you have this, you almost don't need an alphabet.
$endgroup$
– Walter Mitty
May 25 at 10:49
add a comment |
$begingroup$
You don't have to go back in time very far to reach a point where marine-derived hydrocarbons pretty much made the world go round. The catch being that you have to kill rather intelligent, large and dangerous predators who share your environment.
Enter the sperm whale, whose head is filled with an extremely useful collection of waxes and oils which may be extracted and refined to produce exactly the sort of material you'd be interested in. By way of a bonus, it also produces another kind of oily wax, ambergris. This is much rarer, so you would only use it for special occasions, but it would still suffice.
In both cases, you want to keep your message tablets safe in a heavy container or framework, as the waxes would be lighter than water and quickly lost if dropped.
Waxy molecules are found in various marine plants and animals in smaller quantities, so you don't have to wave your hands too hard to invent something slightly more easily and ethically sourceable. The main waxy component of spermaceti, cetyl palmitate is found in some corals. I'm sure you could conjure up a wax coral or sponge that produced it in usefully harvest-able quantities
edited May 24 at 19:33
Joe Bloggs
37.8k20106189
answered May 23 at 21:48
Starfish PrimeStarfish Prime
3,875731
$endgroup$
add a comment |
$begingroup$
You don't have to go back in time very far to reach a point where marine-derived hydrocarbons pretty much made the world go round. The catch being that you have to kill rather intelligent, large and dangerous predators who share your environment.
Enter the sperm whale, whose head is filled with an extremely useful collection of waxes and oils which may be extracted and refined to produce exactly the sort of material you'd be interested in. By way of a bonus, it also produces another kind of oily wax, ambergris. This is much rarer, so you would only use it for special occasions, but it would still suffice.
In both cases, you want to keep your message tablets safe in a heavy container or framework, as the waxes would be lighter than water and quickly lost if dropped.
Waxy molecules are found in various marine plants and animals in smaller quantities, so you don't have to wave your hands too hard to invent something slightly more easily and ethically sourceable. The main waxy component of spermaceti, cetyl palmitate is found in some corals. I'm sure you could conjure up a wax coral or sponge that produced it in usefully harvest-able quantities
edited May 24 at 19:33
Joe Bloggs
37.8k20106189
answered May 23 at 21:48
Starfish PrimeStarfish Prime
3,875731
$endgroup$
add a comment |
$begingroup$
You don't have to go back in time very far to reach a point where marine-derived hydrocarbons pretty much made the world go round. The catch being that you have to kill rather intelligent, large and dangerous predators who share your environment.
Enter the sperm whale, whose head is filled with an extremely useful collection of waxes and oils which may be extracted and refined to produce exactly the sort of material you'd be interested in. By way of a bonus, it also produces another kind of oily wax, ambergris. This is much rarer, so you would only use it for special occasions, but it would still suffice.
In both cases, you want to keep your message tablets safe in a heavy container or framework, as the waxes would be lighter than water and quickly lost if dropped.
Waxy molecules are found in various marine plants and animals in smaller quantities, so you don't have to wave your hands too hard to invent something slightly more easily and ethically sourceable. The main waxy component of spermaceti, cetyl palmitate is found in some corals. I'm sure you could conjure up a wax coral or sponge that produced it in usefully harvest-able quantities
edited May 24 at 19:33
Joe Bloggs
37.8k20106189
answered May 23 at 21:48
Starfish PrimeStarfish Prime
3,875731
$endgroup$
You don't have to go back in time very far to reach a point where marine-derived hydrocarbons pretty much made the world go round. The catch being that you have to kill rather intelligent, large and dangerous predators who share your environment.
Enter the sperm whale, whose head is filled with an extremely useful collection of waxes and oils which may be extracted and refined to produce exactly the sort of material you'd be interested in. By way of a bonus, it also produces another kind of oily wax, ambergris. This is much rarer, so you would only use it for special occasions, but it would still suffice.
In both cases, you want to keep your message tablets safe in a heavy container or framework, as the waxes would be lighter than water and quickly lost if dropped.
Waxy molecules are found in various marine plants and animals in smaller quantities, so you don't have to wave your hands too hard to invent something slightly more easily and ethically sourceable. The main waxy component of spermaceti, cetyl palmitate is found in some corals. I'm sure you could conjure up a wax coral or sponge that produced it in usefully harvest-able quantities
edited May 24 at 19:33
Joe Bloggs
37.8k20106189
answered May 23 at 21:48
Starfish PrimeStarfish Prime
3,875731
edited May 24 at 19:33
Joe Bloggs
37.8k20106189
edited May 24 at 19:33
Joe Bloggs
37.8k20106189
edited May 24 at 19:33
Joe Bloggs
37.8k20106189
37.8k20106189
answered May 23 at 21:48
Starfish PrimeStarfish Prime
3,875731
answered May 23 at 21:48
Starfish PrimeStarfish Prime
3,875731
answered May 23 at 21:48
Starfish PrimeStarfish Prime
3,875731
3,875731
add a comment |
add a comment |
$begingroup$
If you want a pliable material that can be collected undersea without having to kill anything, you might want to consider a bituminous clay or asphalt-like material formed in the vicinity of an undersea asphalt volcano.
High viscosity hydrocarbon fluids mixed with fine silt or sand produce an oil-based clay-like substance that can be scraped or carved to form letters. The marks will last a long time as long as the temperature remains below a certain point, but can easily be erased by simply heating the surface via friction. Rapidly rubbing the surface softens and smooths the markings.
answered May 24 at 17:06
barbecuebarbecue
620411
$endgroup$
$begingroup$
Clay is not water-soluble, especially if it's oil based, +1
$endgroup$
– Mazura
May 24 at 19:00
1
$begingroup$
I can see "heating via friction" being awkward for what would appear to be a minimally technological underwater society...
$endgroup$
– Starfish Prime
May 25 at 9:21
$begingroup$
I specifically mentioned heating via friction because it does not require any advanced technology and can be done underwater, unlike other options such as fire or solar heating.
$endgroup$
– barbecue
May 25 at 18:36
$begingroup$
@barbecue: The water is going to carry away the thermal energy resulting from friction very quickly without much increase in temperature of the "tablet"
$endgroup$
– Ben Voigt
May 25 at 21:49
1
$begingroup$
@BenVoigt I don't think you fully appreciate the physics involved. The friction occurs at the point of contact between two surfaces. There is very little water in between the two surfaces, and the small amount that may be there is easily heated. The fact that the heat may be rapidly dissipated by the water once you separate the surfaces is irrelevant, because the softening and reshaping of the surface has already occurred at that point.
$endgroup$
– barbecue
May 26 at 16:09
add a comment |
$begingroup$
If you want a pliable material that can be collected undersea without having to kill anything, you might want to consider a bituminous clay or asphalt-like material formed in the vicinity of an undersea asphalt volcano.
High viscosity hydrocarbon fluids mixed with fine silt or sand produce an oil-based clay-like substance that can be scraped or carved to form letters. The marks will last a long time as long as the temperature remains below a certain point, but can easily be erased by simply heating the surface via friction. Rapidly rubbing the surface softens and smooths the markings.
answered May 24 at 17:06
barbecuebarbecue
620411
$endgroup$
$begingroup$
Clay is not water-soluble, especially if it's oil based, +1
$endgroup$
– Mazura
May 24 at 19:00
1
$begingroup$
I can see "heating via friction" being awkward for what would appear to be a minimally technological underwater society...
$endgroup$
– Starfish Prime
May 25 at 9:21
$begingroup$
I specifically mentioned heating via friction because it does not require any advanced technology and can be done underwater, unlike other options such as fire or solar heating.
$endgroup$
– barbecue
May 25 at 18:36
$begingroup$
@barbecue: The water is going to carry away the thermal energy resulting from friction very quickly without much increase in temperature of the "tablet"
$endgroup$
– Ben Voigt
May 25 at 21:49
1
$begingroup$
@BenVoigt I don't think you fully appreciate the physics involved. The friction occurs at the point of contact between two surfaces. There is very little water in between the two surfaces, and the small amount that may be there is easily heated. The fact that the heat may be rapidly dissipated by the water once you separate the surfaces is irrelevant, because the softening and reshaping of the surface has already occurred at that point.
$endgroup$
– barbecue
May 26 at 16:09
add a comment |
$begingroup$
If you want a pliable material that can be collected undersea without having to kill anything, you might want to consider a bituminous clay or asphalt-like material formed in the vicinity of an undersea asphalt volcano.
High viscosity hydrocarbon fluids mixed with fine silt or sand produce an oil-based clay-like substance that can be scraped or carved to form letters. The marks will last a long time as long as the temperature remains below a certain point, but can easily be erased by simply heating the surface via friction. Rapidly rubbing the surface softens and smooths the markings.
answered May 24 at 17:06
barbecuebarbecue
620411
$endgroup$
If you want a pliable material that can be collected undersea without having to kill anything, you might want to consider a bituminous clay or asphalt-like material formed in the vicinity of an undersea asphalt volcano.
High viscosity hydrocarbon fluids mixed with fine silt or sand produce an oil-based clay-like substance that can be scraped or carved to form letters. The marks will last a long time as long as the temperature remains below a certain point, but can easily be erased by simply heating the surface via friction. Rapidly rubbing the surface softens and smooths the markings.
answered May 24 at 17:06
barbecuebarbecue
620411
answered May 24 at 17:06
barbecuebarbecue
620411
answered May 24 at 17:06
barbecuebarbecue
620411
answered May 24 at 17:06
barbecuebarbecue
620411
620411
$begingroup$
Clay is not water-soluble, especially if it's oil based, +1
$endgroup$
– Mazura
May 24 at 19:00
1
$begingroup$
I can see "heating via friction" being awkward for what would appear to be a minimally technological underwater society...
$endgroup$
– Starfish Prime
May 25 at 9:21
$begingroup$
I specifically mentioned heating via friction because it does not require any advanced technology and can be done underwater, unlike other options such as fire or solar heating.
$endgroup$
– barbecue
May 25 at 18:36
$begingroup$
@barbecue: The water is going to carry away the thermal energy resulting from friction very quickly without much increase in temperature of the "tablet"
$endgroup$
– Ben Voigt
May 25 at 21:49
1
$begingroup$
@BenVoigt I don't think you fully appreciate the physics involved. The friction occurs at the point of contact between two surfaces. There is very little water in between the two surfaces, and the small amount that may be there is easily heated. The fact that the heat may be rapidly dissipated by the water once you separate the surfaces is irrelevant, because the softening and reshaping of the surface has already occurred at that point.
$endgroup$
– barbecue
May 26 at 16:09
add a comment |
$begingroup$
Clay is not water-soluble, especially if it's oil based, +1
$endgroup$
– Mazura
May 24 at 19:00
1
$begingroup$
I can see "heating via friction" being awkward for what would appear to be a minimally technological underwater society...
$endgroup$
– Starfish Prime
May 25 at 9:21
$begingroup$
I specifically mentioned heating via friction because it does not require any advanced technology and can be done underwater, unlike other options such as fire or solar heating.
$endgroup$
– barbecue
May 25 at 18:36
$begingroup$
@barbecue: The water is going to carry away the thermal energy resulting from friction very quickly without much increase in temperature of the "tablet"
$endgroup$
– Ben Voigt
May 25 at 21:49
1
$begingroup$
@BenVoigt I don't think you fully appreciate the physics involved. The friction occurs at the point of contact between two surfaces. There is very little water in between the two surfaces, and the small amount that may be there is easily heated. The fact that the heat may be rapidly dissipated by the water once you separate the surfaces is irrelevant, because the softening and reshaping of the surface has already occurred at that point.
$endgroup$
– barbecue
May 26 at 16:09
$begingroup$
Clay is not water-soluble, especially if it's oil based, +1
$endgroup$
– Mazura
May 24 at 19:00
$begingroup$
Clay is not water-soluble, especially if it's oil based, +1
$endgroup$
– Mazura
May 24 at 19:00
1
1
$begingroup$
I can see "heating via friction" being awkward for what would appear to be a minimally technological underwater society...
$endgroup$
– Starfish Prime
May 25 at 9:21
$begingroup$
I can see "heating via friction" being awkward for what would appear to be a minimally technological underwater society...
$endgroup$
– Starfish Prime
May 25 at 9:21
$begingroup$
I specifically mentioned heating via friction because it does not require any advanced technology and can be done underwater, unlike other options such as fire or solar heating.
$endgroup$
– barbecue
May 25 at 18:36
$begingroup$
I specifically mentioned heating via friction because it does not require any advanced technology and can be done underwater, unlike other options such as fire or solar heating.
$endgroup$
– barbecue
May 25 at 18:36
$begingroup$
@barbecue: The water is going to carry away the thermal energy resulting from friction very quickly without much increase in temperature of the "tablet"
$endgroup$
– Ben Voigt
May 25 at 21:49
$begingroup$
@barbecue: The water is going to carry away the thermal energy resulting from friction very quickly without much increase in temperature of the "tablet"
$endgroup$
– Ben Voigt
May 25 at 21:49
1
1
$begingroup$
@BenVoigt I don't think you fully appreciate the physics involved. The friction occurs at the point of contact between two surfaces. There is very little water in between the two surfaces, and the small amount that may be there is easily heated. The fact that the heat may be rapidly dissipated by the water once you separate the surfaces is irrelevant, because the softening and reshaping of the surface has already occurred at that point.
$endgroup$
– barbecue
May 26 at 16:09
$begingroup$
@BenVoigt I don't think you fully appreciate the physics involved. The friction occurs at the point of contact between two surfaces. There is very little water in between the two surfaces, and the small amount that may be there is easily heated. The fact that the heat may be rapidly dissipated by the water once you separate the surfaces is irrelevant, because the softening and reshaping of the surface has already occurred at that point.
$endgroup$
– barbecue
May 26 at 16:09
add a comment |
$begingroup$
Maybe not 100% what you’re looking for, but you could use the bones of aquatic animals to carve into (I’m thinking a runic alphabet like Ogham, which was designed to be notched into materials like wood). Then, when you’re done with the message, you can file the surface smooth and start again. Obviously this will wear out the bones over time, but it might work as a temporary solution (and fairly easy to implement, as bones are probably going to be relatively abundant in a decently-populated underwater civilisation).
answered May 24 at 23:28
K. PriceK. Price
3,1071826
$endgroup$
add a comment |
$begingroup$
Maybe not 100% what you’re looking for, but you could use the bones of aquatic animals to carve into (I’m thinking a runic alphabet like Ogham, which was designed to be notched into materials like wood). Then, when you’re done with the message, you can file the surface smooth and start again. Obviously this will wear out the bones over time, but it might work as a temporary solution (and fairly easy to implement, as bones are probably going to be relatively abundant in a decently-populated underwater civilisation).
answered May 24 at 23:28
K. PriceK. Price
3,1071826
$endgroup$
add a comment |
$begingroup$
Maybe not 100% what you’re looking for, but you could use the bones of aquatic animals to carve into (I’m thinking a runic alphabet like Ogham, which was designed to be notched into materials like wood). Then, when you’re done with the message, you can file the surface smooth and start again. Obviously this will wear out the bones over time, but it might work as a temporary solution (and fairly easy to implement, as bones are probably going to be relatively abundant in a decently-populated underwater civilisation).
answered May 24 at 23:28
K. PriceK. Price
3,1071826
$endgroup$
Maybe not 100% what you’re looking for, but you could use the bones of aquatic animals to carve into (I’m thinking a runic alphabet like Ogham, which was designed to be notched into materials like wood). Then, when you’re done with the message, you can file the surface smooth and start again. Obviously this will wear out the bones over time, but it might work as a temporary solution (and fairly easy to implement, as bones are probably going to be relatively abundant in a decently-populated underwater civilisation).
answered May 24 at 23:28
K. PriceK. Price
3,1071826
answered May 24 at 23:28
K. PriceK. Price
3,1071826
answered May 24 at 23:28
K. PriceK. Price
3,1071826
answered May 24 at 23:28
K. PriceK. Price
3,1071826
3,1071826
add a comment |
add a comment |
$begingroup$
I like that we are trying to find a realistic substance to suit some wonderfully unrealistic characters! I think the sperm whale may be the winner but my immediate thought was putty; the smooshy stuff they used use to put window panes in place. It's sort of fawn colored and can be scribbled on. Its waterproof for sure, to keep the rain out but fully underwater, I don't know...Good luck, I love the idea of your underwater community :)
(If you are stuck, maybe they can blow bubbles in the manner of old smoke signals?! )
edited May 26 at 3:56
Brythan
21.9k84388
answered May 24 at 14:54
ShooShoo
211
New contributor
Shoo is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
$endgroup$
3
$begingroup$
Hmm... how would we derive putty from underwater substances? The question asks for substances found underwater =)
$endgroup$
– Cloudy7
May 24 at 15:14
add a comment |
$begingroup$
I like that we are trying to find a realistic substance to suit some wonderfully unrealistic characters! I think the sperm whale may be the winner but my immediate thought was putty; the smooshy stuff they used use to put window panes in place. It's sort of fawn colored and can be scribbled on. Its waterproof for sure, to keep the rain out but fully underwater, I don't know...Good luck, I love the idea of your underwater community :)
(If you are stuck, maybe they can blow bubbles in the manner of old smoke signals?! )
edited May 26 at 3:56
Brythan
21.9k84388
answered May 24 at 14:54
ShooShoo
211
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3
$begingroup$
Hmm... how would we derive putty from underwater substances? The question asks for substances found underwater =)
$endgroup$
– Cloudy7
May 24 at 15:14
add a comment |
$begingroup$
I like that we are trying to find a realistic substance to suit some wonderfully unrealistic characters! I think the sperm whale may be the winner but my immediate thought was putty; the smooshy stuff they used use to put window panes in place. It's sort of fawn colored and can be scribbled on. Its waterproof for sure, to keep the rain out but fully underwater, I don't know...Good luck, I love the idea of your underwater community :)
(If you are stuck, maybe they can blow bubbles in the manner of old smoke signals?! )
edited May 26 at 3:56
Brythan
21.9k84388
answered May 24 at 14:54
ShooShoo
211
New contributor
Shoo is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
$endgroup$
I like that we are trying to find a realistic substance to suit some wonderfully unrealistic characters! I think the sperm whale may be the winner but my immediate thought was putty; the smooshy stuff they used use to put window panes in place. It's sort of fawn colored and can be scribbled on. Its waterproof for sure, to keep the rain out but fully underwater, I don't know...Good luck, I love the idea of your underwater community :)
(If you are stuck, maybe they can blow bubbles in the manner of old smoke signals?! )
edited May 26 at 3:56
Brythan
21.9k84388
answered May 24 at 14:54
ShooShoo
211
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Shoo is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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edited May 26 at 3:56
Brythan
21.9k84388
edited May 26 at 3:56
Brythan
21.9k84388
edited May 26 at 3:56
Brythan
21.9k84388
21.9k84388
answered May 24 at 14:54
ShooShoo
211
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Shoo is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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answered May 24 at 14:54
ShooShoo
211
answered May 24 at 14:54
ShooShoo
211
211
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3
$begingroup$
Hmm... how would we derive putty from underwater substances? The question asks for substances found underwater =)
$endgroup$
– Cloudy7
May 24 at 15:14
add a comment |
3
$begingroup$
Hmm... how would we derive putty from underwater substances? The question asks for substances found underwater =)
$endgroup$
– Cloudy7
May 24 at 15:14
3
3
$begingroup$
Hmm... how would we derive putty from underwater substances? The question asks for substances found underwater =)
$endgroup$
– Cloudy7
May 24 at 15:14
$begingroup$
Hmm... how would we derive putty from underwater substances? The question asks for substances found underwater =)
$endgroup$
– Cloudy7
May 24 at 15:14
add a comment |
$begingroup$
Why does the substance have to be soft? Scraping on a rock (slate) with another rock (chalk) would work as well underwater as it does above.
answered May 24 at 16:51
Facefire91Facefire91
191
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$endgroup$
2
$begingroup$
Chalk washes off a little too easily.
$endgroup$
– Mark
May 24 at 21:43
add a comment |
$begingroup$
Why does the substance have to be soft? Scraping on a rock (slate) with another rock (chalk) would work as well underwater as it does above.
answered May 24 at 16:51
Facefire91Facefire91
191
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$endgroup$
2
$begingroup$
Chalk washes off a little too easily.
$endgroup$
– Mark
May 24 at 21:43
add a comment |
$begingroup$
Why does the substance have to be soft? Scraping on a rock (slate) with another rock (chalk) would work as well underwater as it does above.
answered May 24 at 16:51
Facefire91Facefire91
191
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$endgroup$
Why does the substance have to be soft? Scraping on a rock (slate) with another rock (chalk) would work as well underwater as it does above.
answered May 24 at 16:51
Facefire91Facefire91
191
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answered May 24 at 16:51
Facefire91Facefire91
191
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answered May 24 at 16:51
Facefire91Facefire91
191
answered May 24 at 16:51
Facefire91Facefire91
191
191
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2
$begingroup$
Chalk washes off a little too easily.
$endgroup$
– Mark
May 24 at 21:43
add a comment |
2
$begingroup$
Chalk washes off a little too easily.
$endgroup$
– Mark
May 24 at 21:43
2
2
$begingroup$
Chalk washes off a little too easily.
$endgroup$
– Mark
May 24 at 21:43
$begingroup$
Chalk washes off a little too easily.
$endgroup$
– Mark
May 24 at 21:43
add a comment |
$begingroup$
I'll answer your question very generic, so you can use it not only for writing tablets, but ANYTHING in your underwater world.
What you are looking for are hydrophobic substances such as oil, fat or wax.
For your writing you'll want fat-derived substances, given that wax will be too hard in the cold.
But simply take a light granite tablet and slather some thickened, darkened grease on it.
By "writing" on it you get light letters on a dark surface, and with your fingers or a simple ruler you can "delete" writing as well instantly.
answered May 25 at 22:45
HobbamokHobbamok
1,711412
$endgroup$
add a comment |
$begingroup$
I'll answer your question very generic, so you can use it not only for writing tablets, but ANYTHING in your underwater world.
What you are looking for are hydrophobic substances such as oil, fat or wax.
For your writing you'll want fat-derived substances, given that wax will be too hard in the cold.
But simply take a light granite tablet and slather some thickened, darkened grease on it.
By "writing" on it you get light letters on a dark surface, and with your fingers or a simple ruler you can "delete" writing as well instantly.
answered May 25 at 22:45
HobbamokHobbamok
1,711412
$endgroup$
add a comment |
$begingroup$
I'll answer your question very generic, so you can use it not only for writing tablets, but ANYTHING in your underwater world.
What you are looking for are hydrophobic substances such as oil, fat or wax.
For your writing you'll want fat-derived substances, given that wax will be too hard in the cold.
But simply take a light granite tablet and slather some thickened, darkened grease on it.
By "writing" on it you get light letters on a dark surface, and with your fingers or a simple ruler you can "delete" writing as well instantly.
answered May 25 at 22:45
HobbamokHobbamok
1,711412
$endgroup$
I'll answer your question very generic, so you can use it not only for writing tablets, but ANYTHING in your underwater world.
What you are looking for are hydrophobic substances such as oil, fat or wax.
For your writing you'll want fat-derived substances, given that wax will be too hard in the cold.
But simply take a light granite tablet and slather some thickened, darkened grease on it.
By "writing" on it you get light letters on a dark surface, and with your fingers or a simple ruler you can "delete" writing as well instantly.
answered May 25 at 22:45
HobbamokHobbamok
1,711412
answered May 25 at 22:45
HobbamokHobbamok
1,711412
answered May 25 at 22:45
HobbamokHobbamok
1,711412
answered May 25 at 22:45
HobbamokHobbamok
1,711412
1,711412
add a comment |
add a comment |
$begingroup$
If your race as access to metals, and if they are stronger than humans, gold would be the perfect match.
Especially if they're somewhat advanced, as there's a lot of gold floating in the oceans.
The gold could be filtered out they would have a more or less infinite source.
answered May 25 at 9:19
Thorbjørn E. K. ChristensenThorbjørn E. K. Christensen
1011
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$endgroup$
$begingroup$
I suspect if they were technologically advanced enough to extract macroscopic amounts of gold from seawater, they wouldn't be looking for a wax tablet substitute.
$endgroup$
– Starfish Prime
May 25 at 9:22
add a comment |
$begingroup$
If your race as access to metals, and if they are stronger than humans, gold would be the perfect match.
Especially if they're somewhat advanced, as there's a lot of gold floating in the oceans.
The gold could be filtered out they would have a more or less infinite source.
answered May 25 at 9:19
Thorbjørn E. K. ChristensenThorbjørn E. K. Christensen
1011
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$endgroup$
$begingroup$
I suspect if they were technologically advanced enough to extract macroscopic amounts of gold from seawater, they wouldn't be looking for a wax tablet substitute.
$endgroup$
– Starfish Prime
May 25 at 9:22
add a comment |
$begingroup$
If your race as access to metals, and if they are stronger than humans, gold would be the perfect match.
Especially if they're somewhat advanced, as there's a lot of gold floating in the oceans.
The gold could be filtered out they would have a more or less infinite source.
answered May 25 at 9:19
Thorbjørn E. K. ChristensenThorbjørn E. K. Christensen
1011
New contributor
Thorbjørn E. K. Christensen is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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$endgroup$
If your race as access to metals, and if they are stronger than humans, gold would be the perfect match.
Especially if they're somewhat advanced, as there's a lot of gold floating in the oceans.
The gold could be filtered out they would have a more or less infinite source.
answered May 25 at 9:19
Thorbjørn E. K. ChristensenThorbjørn E. K. Christensen
1011
New contributor
Thorbjørn E. K. Christensen is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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answered May 25 at 9:19
Thorbjørn E. K. ChristensenThorbjørn E. K. Christensen
1011
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answered May 25 at 9:19
Thorbjørn E. K. ChristensenThorbjørn E. K. Christensen
1011
answered May 25 at 9:19
Thorbjørn E. K. ChristensenThorbjørn E. K. Christensen
1011
1011
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$begingroup$
I suspect if they were technologically advanced enough to extract macroscopic amounts of gold from seawater, they wouldn't be looking for a wax tablet substitute.
$endgroup$
– Starfish Prime
May 25 at 9:22
add a comment |
$begingroup$
I suspect if they were technologically advanced enough to extract macroscopic amounts of gold from seawater, they wouldn't be looking for a wax tablet substitute.
$endgroup$
– Starfish Prime
May 25 at 9:22
$begingroup$
I suspect if they were technologically advanced enough to extract macroscopic amounts of gold from seawater, they wouldn't be looking for a wax tablet substitute.
$endgroup$
– Starfish Prime
May 25 at 9:22
$begingroup$
I suspect if they were technologically advanced enough to extract macroscopic amounts of gold from seawater, they wouldn't be looking for a wax tablet substitute.
$endgroup$
– Starfish Prime
May 25 at 9:22
add a comment |
$begingroup$
Fish
Carve the message into a fish, the recipient eats the fish and sends back another fish with reply carved into it.
answered May 24 at 12:16
PIXIE94PIXIE94
17
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$endgroup$
3
$begingroup$
I'm pretty certain that dead fish will fail the "lasts a fairly long time" requirement. Also, writing legibly on a fish by carving is not straightfoward (I invite you to try; please supply pictures) especially if you want to write fairly densely.
$endgroup$
– Starfish Prime
May 24 at 12:53
$begingroup$
@StarfishPrime What about a big fish? Like a whale
$endgroup$
– Halhex
May 24 at 14:07
10
$begingroup$
@Halhex no matter how big the whale is, it still isn't a fish.
$endgroup$
– MikeTheLiar
May 24 at 14:33
add a comment |
$begingroup$
Fish
Carve the message into a fish, the recipient eats the fish and sends back another fish with reply carved into it.
answered May 24 at 12:16
PIXIE94PIXIE94
17
New contributor
PIXIE94 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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$endgroup$
3
$begingroup$
I'm pretty certain that dead fish will fail the "lasts a fairly long time" requirement. Also, writing legibly on a fish by carving is not straightfoward (I invite you to try; please supply pictures) especially if you want to write fairly densely.
$endgroup$
– Starfish Prime
May 24 at 12:53
$begingroup$
@StarfishPrime What about a big fish? Like a whale
$endgroup$
– Halhex
May 24 at 14:07
10
$begingroup$
@Halhex no matter how big the whale is, it still isn't a fish.
$endgroup$
– MikeTheLiar
May 24 at 14:33
add a comment |
$begingroup$
Fish
Carve the message into a fish, the recipient eats the fish and sends back another fish with reply carved into it.
answered May 24 at 12:16
PIXIE94PIXIE94
17
New contributor
PIXIE94 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
$endgroup$
Fish
Carve the message into a fish, the recipient eats the fish and sends back another fish with reply carved into it.
answered May 24 at 12:16
PIXIE94PIXIE94
17
New contributor
PIXIE94 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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answered May 24 at 12:16
PIXIE94PIXIE94
17
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answered May 24 at 12:16
PIXIE94PIXIE94
17
answered May 24 at 12:16
PIXIE94PIXIE94
17
17
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PIXIE94 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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3
$begingroup$
I'm pretty certain that dead fish will fail the "lasts a fairly long time" requirement. Also, writing legibly on a fish by carving is not straightfoward (I invite you to try; please supply pictures) especially if you want to write fairly densely.
$endgroup$
– Starfish Prime
May 24 at 12:53
$begingroup$
@StarfishPrime What about a big fish? Like a whale
$endgroup$
– Halhex
May 24 at 14:07
10
$begingroup$
@Halhex no matter how big the whale is, it still isn't a fish.
$endgroup$
– MikeTheLiar
May 24 at 14:33
add a comment |
3
$begingroup$
I'm pretty certain that dead fish will fail the "lasts a fairly long time" requirement. Also, writing legibly on a fish by carving is not straightfoward (I invite you to try; please supply pictures) especially if you want to write fairly densely.
$endgroup$
– Starfish Prime
May 24 at 12:53
$begingroup$
@StarfishPrime What about a big fish? Like a whale
$endgroup$
– Halhex
May 24 at 14:07
10
$begingroup$
@Halhex no matter how big the whale is, it still isn't a fish.
$endgroup$
– MikeTheLiar
May 24 at 14:33
3
3
$begingroup$
I'm pretty certain that dead fish will fail the "lasts a fairly long time" requirement. Also, writing legibly on a fish by carving is not straightfoward (I invite you to try; please supply pictures) especially if you want to write fairly densely.
$endgroup$
– Starfish Prime
May 24 at 12:53
$begingroup$
I'm pretty certain that dead fish will fail the "lasts a fairly long time" requirement. Also, writing legibly on a fish by carving is not straightfoward (I invite you to try; please supply pictures) especially if you want to write fairly densely.
$endgroup$
– Starfish Prime
May 24 at 12:53
$begingroup$
@StarfishPrime What about a big fish? Like a whale
$endgroup$
– Halhex
May 24 at 14:07
$begingroup$
@StarfishPrime What about a big fish? Like a whale
$endgroup$
– Halhex
May 24 at 14:07
10
10
$begingroup$
@Halhex no matter how big the whale is, it still isn't a fish.
$endgroup$
– MikeTheLiar
May 24 at 14:33
$begingroup$
@Halhex no matter how big the whale is, it still isn't a fish.
$endgroup$
– MikeTheLiar
May 24 at 14:33
add a comment |
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$begingroup$
I read the title of your question and immediately thought "BluTac!" Alas, it is not a valid answer to your question :(
$endgroup$
– Montgomery 'monty' Jones
May 24 at 10:32
4
$begingroup$
Oh wait! This is a duplicate of worldbuilding.stackexchange.com/questions/59791/…. I didn't even notice before I wrote my answer.
$endgroup$
– Cloudy7
May 24 at 20:06
3
$begingroup$
Possible duplicate of What could an aquatic civilization use to write on/with?
$endgroup$
– Criggie
May 25 at 3:39
2
$begingroup$
Its only a duplicate if you ignore the "soft substance which retains writing but can be smoothed flat" requirement. The linked duplicate doesn't mention spermaceti. for @Cloudy7 example.
$endgroup$
– Starfish Prime
May 25 at 19:00