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Eggtimer
HotSauce Lover

Registered: 05/04/13
Posts: 3,097
Last seen: 4 days, 4 hours
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Sea Sapphire's are awesome and have the power of invisibility 1
#21957217 - 07/17/15 05:52 PM (8 years, 6 months ago) |
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 https://www.newscientist.com/article/dn27920-beautiful-sea-sapphire-can-make-itself-invisible-in-an-instant/
Quote:
Red and blue and green and violet and… Invisible. Sea sapphires have been described as “the most beautiful animal you’ve never seen”. Even when you do see them, they can vanish in an instant (see video, above). But how do they pull off their trick?
This tiny crustacean has alternating layers of hexagonal guanine crystals and cytoplasm on its back that reflect light in a sparkling array of hues. Different species shimmer in different colours, ranging from gold to blue.
The colour is determined by the distance between the crystals and the angle at which light hits them.
In blue sea sapphires, the distance between the crystals is about the same as the wavelength of blue light, so the animals appear blue.
The angle of light hitting the sea sapphire also affects the colour and lets it perform its disappearing act. For the species in the video, for example, the animal’s tilt of 45 degrees causes the reflected light to slip into the ultraviolet spectrum, and the animal becomes invisible to our eyes.
Only the males have these amazing colours, the females are completely translucent. Males swim in spirals, probably to show off their shimmering hues to potential mates, says Lia Addadi at the Weizmann Institute of Science in Rehovot, Israel.
“An intriguing question that still remains is whether the differences in colour are genetic and each male is born with a defined colour, or whether they can control the reflected colour,” says Addadi.
Understanding how the light reflection trick works could inspire new reflective or anti-reflective coatings in glasses, mirrors and optical display systems, says Addadi.
-------------------- It's all for the s
Edited by Eggtimer (07/17/15 06:23 PM)
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Dest
Roller-Derby Coach


Registered: 06/14/09
Posts: 2,444
Last seen: 6 years, 5 months
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Re: Sea Sapphire's are awesome and have the power of invisibility [Re: Eggtimer]
#21962713 - 07/18/15 10:45 PM (8 years, 6 months ago) |
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It reminds me of the active camo elites from Halo.
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makaveli8x8
Stranger

Registered: 02/28/06
Posts: 21,636
Last seen: 7 years, 7 months
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Re: Sea Sapphire's are awesome and have the power of invisibility [Re: Dest]
#21962723 - 07/18/15 10:49 PM (8 years, 6 months ago) |
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why is it we find shit like this right around the same time we are developing the technology ourselves. I mean we been in the sea for a long time, you'd think someone would have stumbled apon something like this before.
Its like we created it or something
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  We were sent to hell for eternity Ø h® We play on earth to pass the time Over-population the root of all Evil-brings the Elites Closer to the gates.
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Eggtimer
HotSauce Lover

Registered: 05/04/13
Posts: 3,097
Last seen: 4 days, 4 hours
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Re: Sea Sapphire's are awesome and have the power of invisibility [Re: makaveli8x8]
#21962798 - 07/18/15 11:06 PM (8 years, 6 months ago) |
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Quote:
makaveli8x8 said: why is it we find shit like this right around the same time we are developing the technology ourselves. I mean we been in the sea for a long time, you'd think someone would have stumbled apon something like this before.
Its like we created it or something
I know. Does life imitate art or does art imitate life? Science fiction seems to becoming real too.
-------------------- It's all for the s
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akira_akuma
Φύσις κρύπτεσθαι ὕψιστος φιλεῖ

Registered: 08/28/09
Posts: 82,455
Loc: Onypeirophóros
Last seen: 4 years, 1 month
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Re: Sea Sapphire's are awesome and have the power of invisibility [Re: Eggtimer]
#21962883 - 07/18/15 11:29 PM (8 years, 6 months ago) |
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thoughts imitate perceptions.
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