06-24-2018, 02:08 PM | #71 |
Join Date: Jul 2006
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Re: Rate my "Big Bad Evils"
Because the OP asked that this sort of stuff be rated/discussed. This is the GURPS forum, where everything (even fantasy and sci-fi) is expected to be reasonable if not realistic. Elaborate backstories (especiaaly cinematic ones) are going to get picked apart for their basic assumptions.
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06-24-2018, 02:22 PM | #72 | |
Banned
Join Date: May 2017
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Re: Rate my "Big Bad Evils"
Quote:
Last edited by Alonsua; 06-24-2018 at 02:34 PM. |
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06-24-2018, 02:40 PM | #73 |
Banned
Join Date: May 2017
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Re: Rate my "Big Bad Evils"
Anybody calls for insta-heart attack or agony instead of terrible pain?
Last edited by Alonsua; 06-24-2018 at 02:43 PM. |
06-24-2018, 03:17 PM | #74 | |
Join Date: Feb 2016
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Re: Rate my "Big Bad Evils"
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It is also impossible to deliver such an attack directly into the blood stream (if you assume 750 grams). The poison glands would likely have a crosssection of 1 mm, which would mean that they would need to deliver the acid at 750 meters per second to deliver all of the acid in one bite to the blood stream. With that much force, the recoil would blow the head of the ant off at 150 meters per second. It is really a moot point through, as the bite should probably cause toxic damage rather than corrosive damage. A toxic attack can easily cause that level of damage (it is the equivalent of around 1 gram of king cobra venom) because poisons kill by disabling biological processes rather than killing by turning someone to a pile of goo. If you change the attack to a toxic attack, it will be fine. Last edited by AlexanderHowl; 06-24-2018 at 03:24 PM. |
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06-24-2018, 03:36 PM | #75 | |
Banned
Join Date: May 2017
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Re: Rate my "Big Bad Evils"
Quote:
And the corrosive maximum would be 17.5 at maximum, the rest is toxic damage. However, I will drop it to 1 cor damage point if that makes it feel better. This would be the result: Follow-up [1d-1 tox 1 cor terrible pain; secondary choking] (HT-2 to resist) every 10 seconds for 1 minute I would also like you to consider that the ants are not 1 cm long, theyīre almost 50 cm long, with a head length of about 13 cm and appropriate mandibular glands (***). So following your math (and assumming it was right) itīs actually 4.8 meters per second (I include a corrected calculation at the end of my post). Put the mandibular glands down to about 30 secretory cells of around 3.75mm each for shorter mandibles (although I like them long and scary). That would be a bit over 6.66 meters per second. Possible design Design Corrected calculation: And if you want to stay true to the original design of a single sting make it 6.25 mm diameter, for a surface of over 30 sq mm, making it 120m/s (12.2kg-m/s), which considering that they can lift 80kg with a x-heavy load, should not be much at a recoil speed of 6m/s if the ants weigh 15kg or 12m/s if we lower them to weigh 7.5kg. And even then we need to remember that the lethal dose is 18.75g for a 125 lbs person, not 750g. For comparison: Muzzle velocity is the speed of a projectile at the moment it leaves the muzzle of a gun. Muzzle velocities range from approximately 120 m/s (390 ft/s) to 370 m/s (1,200 ft/s) in black powder muskets, to more than 1,200 m/s (3,900 ft/s) in modern rifles with high-performance cartridges such as the .220 Swift and .204 Ruger. Last edited by Alonsua; 06-24-2018 at 04:56 PM. |
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06-24-2018, 05:08 PM | #76 |
Banned
Join Date: May 2017
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Re: Rate my "Big Bad Evils"
By the way Formic acid has a pka of 3.75 Acetic acid has a pka of 4.75. Therefore formic acid is a stronger acid than acetic acid.
From acetic acid we got the following: "being splashed with it causes 1 point of corrosion damage; being immersed in it, 1d-3 corrosion damage per second; and swallowing it, 1d+1 corrosion damage at the rate of 1 HP per 15 minutes.". From basic campaign we have the following too: "If the victim is immersed in acid, he takes 1d-1 corrosion damage per second." and "If the victim swallows acid, he takes 3d damage at the rate of 1 HP per 15 minutes. A successful Physician or Poisons roll can halt this damage; treatment requires 2d minutes.". Since what these ants do is not to spit it, but to inject it, I think it should have an effect similar to having swallowed it. What does "at the rate of 1 HP per 15 minutes" stand for? Permanent HP damage? Last edited by Alonsua; 06-24-2018 at 05:31 PM. |
06-24-2018, 05:12 PM | #77 | |
Join Date: Jun 2005
Location: Lawrence, KS
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Re: Rate my "Big Bad Evils"
Quote:
Do ants secrete pure formic acid, or formic acid in aqueous solution? If the latter, what's the concentration?
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Bill Stoddard I don't think we're in Oz any more. |
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06-24-2018, 05:34 PM | #78 | |
Banned
Join Date: May 2017
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Re: Rate my "Big Bad Evils"
Quote:
*Do it "concentrated" formic acid (80%). *Acetic acid is at TL0, appears on the low-tech book and only states "concentrated". Last edited by Alonsua; 06-24-2018 at 05:41 PM. |
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06-24-2018, 06:14 PM | #79 | |
Join Date: Mar 2013
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Re: Rate my "Big Bad Evils"
Quote:
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06-24-2018, 06:27 PM | #80 | |
Banned
Join Date: May 2017
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Re: Rate my "Big Bad Evils"
Quote:
And quoting: Corrected calculation: And if you want to stay true to the original design of a single sting make it 6.25 mm diameter, for a surface of over 30 sq mm, making it 120m/s (12.2kg-m/s), which considering that they can lift 80kg with a x-heavy load, should not be much at a recoil speed of 6m/s if the ants weigh 15kg or 12m/s if we lower them to weigh 7.5kg. And even then we need to remember that the lethal dose is 18.75g for a 125 lbs person, not 750g. For comparison: Muzzle velocity is the speed of a projectile at the moment it leaves the muzzle of a gun. Muzzle velocities range from approximately 120 m/s (390 ft/s) to 370 m/s (1,200 ft/s) in black powder muskets, to more than 1,200 m/s (3,900 ft/s) in modern rifles with high-performance cartridges such as the .220 Swift and .204 Ruger. Last edited by Alonsua; 06-24-2018 at 06:34 PM. |
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