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Old 05-03-2023, 01:01 PM   #11
DaibhidC
 
Join Date: Jul 2008
Location: Scotland
Default Re: [Basic] Advantage of the Week: See Invisible

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Originally Posted by Anthony View Post
Just about every story has air (which is invisible) and usually the person who can see invisible has no special ability to see air (they might be able to see air spirits).
I think (failed physics student, I could be wrong) that air is more transparent than, say, water or glass, but isn't actually 100% transparent (aka invisible), we're just used to what things look like when we're looking through it.

Although I do like the idea of a character with the "special ability" to see air, which I'd guess would be equivalent to living in a personal fog cloud.
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Old 05-03-2023, 08:57 PM   #12
David Johnston2
 
Join Date: Dec 2007
Default Re: [Basic] Advantage of the Week: See Invisible

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Originally Posted by whswhs View Post
I actually prefer the Basic Set. I particularly don't care for the ability to see (invisible) ghosts regardless of how they achieve invisibility.
It would be crap world building to give ghosts more than one way of achieving invisibility anyway.
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Old 05-03-2023, 09:01 PM   #13
David Johnston2
 
Join Date: Dec 2007
Default Re: [Basic] Advantage of the Week: See Invisible

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Originally Posted by DaibhidC View Post
I think (failed physics student, I could be wrong) that air is more transparent than, say, water or glass, but isn't actually 100% transparent (aka invisible), we're just used to what things look like when we're looking through it.

Although I do like the idea of a character with the "special ability" to see air, which I'd guess would be equivalent to living in a personal fog cloud.
Not much use to see stationary air, but seeing air currents would have its uses particularly if you're a pilot.
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Old 05-04-2023, 11:38 AM   #14
Anthony
 
Join Date: Feb 2005
Location: Berkeley, CA
Default Re: [Basic] Advantage of the Week: See Invisible

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Originally Posted by DaibhidC View Post
I think (failed physics student, I could be wrong) that air is more transparent than, say, water or glass, but isn't actually 100% transparent (aka invisible), we're just used to what things look like when we're looking through it.
Air isn't totally transparent, but it's more than transparent enough to qualify for the Invisible advantage.
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Old 05-04-2023, 02:35 PM   #15
Pursuivant
 
Join Date: Apr 2005
Default Re: [Basic] Advantage of the Week: See Invisible

Quote:
Originally Posted by DaibhidC View Post
I think (failed physics student, I could be wrong) that air is more transparent than, say, water or glass, but isn't actually 100% transparent (aka invisible), we're just used to what things look like when we're looking through it.
You can "see" air (or at least light scattered from oxygen molecules) when you look into the sky - it's why the sky is blue.

Seeing air currents would be handy for ranged weapon users (to account for windage) and people who have to deal with creatures of elemental air.

Quote:
Originally Posted by DaibhidC View Post
Although I do like the idea of a character with the "special ability" to see air, which I'd guess would be equivalent to living in a personal fog cloud.
I wonder how to model this problem in GURPS. The simple way is Bad Sight (Limitation: Not in Vacuum), but Blindness with some sort of limitation (e.g., Normal Sight within 1 yard, Bad Sight at 2 yards, Blind beyond that) might work, too.
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Old 05-04-2023, 03:28 PM   #16
Anthony
 
Join Date: Feb 2005
Location: Berkeley, CA
Default Re: [Basic] Advantage of the Week: See Invisible

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Originally Posted by Pursuivant View Post
You can "see" air (or at least light scattered from oxygen molecules) when you look into the sky - it's why the sky is blue.
In clear air, Rayleigh scattering is something like 0.002% per yard. Unfortunately, the human eye's limit on contrast is only around 1%.
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