biologic liquid weapon
Clash Royale CLAN TAG#URR8PPP
up vote
4
down vote
favorite
Imagine human like creatures with glands inside their forearms that can quickly produce a liquid that when exposed to air turns to a solid has hard as bone.
The liquid can be used to create and throw projectiles out of the forearm or to create a blade attached to the underside of the wrist.
How could this evolve and why?
biology creature-design natural-weapons
New contributor
Eries is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
add a comment |Â
up vote
4
down vote
favorite
Imagine human like creatures with glands inside their forearms that can quickly produce a liquid that when exposed to air turns to a solid has hard as bone.
The liquid can be used to create and throw projectiles out of the forearm or to create a blade attached to the underside of the wrist.
How could this evolve and why?
biology creature-design natural-weapons
New contributor
Eries is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
1
I don't think shapeshifters applies here. I replaced it with natural-weapons, which seems more appropriate given the question. Other tags may also apply.
– Î± CVn♦
28 mins ago
add a comment |Â
up vote
4
down vote
favorite
up vote
4
down vote
favorite
Imagine human like creatures with glands inside their forearms that can quickly produce a liquid that when exposed to air turns to a solid has hard as bone.
The liquid can be used to create and throw projectiles out of the forearm or to create a blade attached to the underside of the wrist.
How could this evolve and why?
biology creature-design natural-weapons
New contributor
Eries is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
Imagine human like creatures with glands inside their forearms that can quickly produce a liquid that when exposed to air turns to a solid has hard as bone.
The liquid can be used to create and throw projectiles out of the forearm or to create a blade attached to the underside of the wrist.
How could this evolve and why?
biology creature-design natural-weapons
biology creature-design natural-weapons
New contributor
Eries is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
New contributor
Eries is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
edited 28 mins ago


α CVn♦
21.3k1087166
21.3k1087166
New contributor
Eries is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 55 mins ago
Eries
436
436
New contributor
Eries is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
New contributor
Eries is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
Eries is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
1
I don't think shapeshifters applies here. I replaced it with natural-weapons, which seems more appropriate given the question. Other tags may also apply.
– Î± CVn♦
28 mins ago
add a comment |Â
1
I don't think shapeshifters applies here. I replaced it with natural-weapons, which seems more appropriate given the question. Other tags may also apply.
– Î± CVn♦
28 mins ago
1
1
I don't think shapeshifters applies here. I replaced it with natural-weapons, which seems more appropriate given the question. Other tags may also apply.
– Î± CVn♦
28 mins ago
I don't think shapeshifters applies here. I replaced it with natural-weapons, which seems more appropriate given the question. Other tags may also apply.
– Î± CVn♦
28 mins ago
add a comment |Â
2 Answers
2
active
oldest
votes
up vote
2
down vote
It couldn't.
Anything that hardens that fast will have a soft interior because the inside has not been exposed to air long enough to harden. You need either slow extrusion, with each thin layer forming on top of the earlier ones, like coats of paint; or thin fibres that bind together to form a single structure, i.e., a horn. Neither one is an instantaneous process, so Wolverine claws are right out.
add a comment |Â
up vote
2
down vote
It won't.
We do have liquid suspensions that solidify when they get out of the bloodstream or our glands: platelets become blood clots, gunk is left over when tears dry etc. But those are not very dense.
For a claw or projectile to be made, it would be as dense as the liquid it came from if it kept the same volume. In other words, for the volume of a 9mm bullet (a little less than 0.18cm3), you'd spend that much fluid to make a bullet as dense as the fluid itself. For the record, human blood is marginally more dense than water.
Every time you double the amount of liquid for the dame volume (compressing the liquid), you double density
To achieve the density of human bone ([1.75g/cm3), you'd need to spend just a little more blood per bullet.
How effective would that be? Get a t-bone bone (I know it sounds silly, but I can't find another name for it), break it into bullet sized pieces and toss at a friend. For science. Now imagine a creature bleeding in order to do that. In the very least natural selection would penalize creatured who used this "weapon" to hunt, or to fend off predators. If you are willing to stretch the bow past the point where it breaks, such bone bullets could be used in sexual courtship, but that's it.
add a comment |Â
2 Answers
2
active
oldest
votes
2 Answers
2
active
oldest
votes
active
oldest
votes
active
oldest
votes
up vote
2
down vote
It couldn't.
Anything that hardens that fast will have a soft interior because the inside has not been exposed to air long enough to harden. You need either slow extrusion, with each thin layer forming on top of the earlier ones, like coats of paint; or thin fibres that bind together to form a single structure, i.e., a horn. Neither one is an instantaneous process, so Wolverine claws are right out.
add a comment |Â
up vote
2
down vote
It couldn't.
Anything that hardens that fast will have a soft interior because the inside has not been exposed to air long enough to harden. You need either slow extrusion, with each thin layer forming on top of the earlier ones, like coats of paint; or thin fibres that bind together to form a single structure, i.e., a horn. Neither one is an instantaneous process, so Wolverine claws are right out.
add a comment |Â
up vote
2
down vote
up vote
2
down vote
It couldn't.
Anything that hardens that fast will have a soft interior because the inside has not been exposed to air long enough to harden. You need either slow extrusion, with each thin layer forming on top of the earlier ones, like coats of paint; or thin fibres that bind together to form a single structure, i.e., a horn. Neither one is an instantaneous process, so Wolverine claws are right out.
It couldn't.
Anything that hardens that fast will have a soft interior because the inside has not been exposed to air long enough to harden. You need either slow extrusion, with each thin layer forming on top of the earlier ones, like coats of paint; or thin fibres that bind together to form a single structure, i.e., a horn. Neither one is an instantaneous process, so Wolverine claws are right out.
answered 24 mins ago
nzaman
7,89211340
7,89211340
add a comment |Â
add a comment |Â
up vote
2
down vote
It won't.
We do have liquid suspensions that solidify when they get out of the bloodstream or our glands: platelets become blood clots, gunk is left over when tears dry etc. But those are not very dense.
For a claw or projectile to be made, it would be as dense as the liquid it came from if it kept the same volume. In other words, for the volume of a 9mm bullet (a little less than 0.18cm3), you'd spend that much fluid to make a bullet as dense as the fluid itself. For the record, human blood is marginally more dense than water.
Every time you double the amount of liquid for the dame volume (compressing the liquid), you double density
To achieve the density of human bone ([1.75g/cm3), you'd need to spend just a little more blood per bullet.
How effective would that be? Get a t-bone bone (I know it sounds silly, but I can't find another name for it), break it into bullet sized pieces and toss at a friend. For science. Now imagine a creature bleeding in order to do that. In the very least natural selection would penalize creatured who used this "weapon" to hunt, or to fend off predators. If you are willing to stretch the bow past the point where it breaks, such bone bullets could be used in sexual courtship, but that's it.
add a comment |Â
up vote
2
down vote
It won't.
We do have liquid suspensions that solidify when they get out of the bloodstream or our glands: platelets become blood clots, gunk is left over when tears dry etc. But those are not very dense.
For a claw or projectile to be made, it would be as dense as the liquid it came from if it kept the same volume. In other words, for the volume of a 9mm bullet (a little less than 0.18cm3), you'd spend that much fluid to make a bullet as dense as the fluid itself. For the record, human blood is marginally more dense than water.
Every time you double the amount of liquid for the dame volume (compressing the liquid), you double density
To achieve the density of human bone ([1.75g/cm3), you'd need to spend just a little more blood per bullet.
How effective would that be? Get a t-bone bone (I know it sounds silly, but I can't find another name for it), break it into bullet sized pieces and toss at a friend. For science. Now imagine a creature bleeding in order to do that. In the very least natural selection would penalize creatured who used this "weapon" to hunt, or to fend off predators. If you are willing to stretch the bow past the point where it breaks, such bone bullets could be used in sexual courtship, but that's it.
add a comment |Â
up vote
2
down vote
up vote
2
down vote
It won't.
We do have liquid suspensions that solidify when they get out of the bloodstream or our glands: platelets become blood clots, gunk is left over when tears dry etc. But those are not very dense.
For a claw or projectile to be made, it would be as dense as the liquid it came from if it kept the same volume. In other words, for the volume of a 9mm bullet (a little less than 0.18cm3), you'd spend that much fluid to make a bullet as dense as the fluid itself. For the record, human blood is marginally more dense than water.
Every time you double the amount of liquid for the dame volume (compressing the liquid), you double density
To achieve the density of human bone ([1.75g/cm3), you'd need to spend just a little more blood per bullet.
How effective would that be? Get a t-bone bone (I know it sounds silly, but I can't find another name for it), break it into bullet sized pieces and toss at a friend. For science. Now imagine a creature bleeding in order to do that. In the very least natural selection would penalize creatured who used this "weapon" to hunt, or to fend off predators. If you are willing to stretch the bow past the point where it breaks, such bone bullets could be used in sexual courtship, but that's it.
It won't.
We do have liquid suspensions that solidify when they get out of the bloodstream or our glands: platelets become blood clots, gunk is left over when tears dry etc. But those are not very dense.
For a claw or projectile to be made, it would be as dense as the liquid it came from if it kept the same volume. In other words, for the volume of a 9mm bullet (a little less than 0.18cm3), you'd spend that much fluid to make a bullet as dense as the fluid itself. For the record, human blood is marginally more dense than water.
Every time you double the amount of liquid for the dame volume (compressing the liquid), you double density
To achieve the density of human bone ([1.75g/cm3), you'd need to spend just a little more blood per bullet.
How effective would that be? Get a t-bone bone (I know it sounds silly, but I can't find another name for it), break it into bullet sized pieces and toss at a friend. For science. Now imagine a creature bleeding in order to do that. In the very least natural selection would penalize creatured who used this "weapon" to hunt, or to fend off predators. If you are willing to stretch the bow past the point where it breaks, such bone bullets could be used in sexual courtship, but that's it.
answered 15 mins ago


Renan
36.8k1184188
36.8k1184188
add a comment |Â
add a comment |Â
Eries is a new contributor. Be nice, and check out our Code of Conduct.
Eries is a new contributor. Be nice, and check out our Code of Conduct.
Eries is a new contributor. Be nice, and check out our Code of Conduct.
Eries is a new contributor. Be nice, and check out our Code of Conduct.
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
StackExchange.ready(
function ()
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fworldbuilding.stackexchange.com%2fquestions%2f128182%2fbiologic-liquid-weapon%23new-answer', 'question_page');
);
Post as a guest
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
1
I don't think shapeshifters applies here. I replaced it with natural-weapons, which seems more appropriate given the question. Other tags may also apply.
– Î± CVn♦
28 mins ago