07-09-2024, 02:57 PM
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#60 (permalink)
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Master EcoModder
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Another update:
The record for reflectance has been moved to 104%. Phys.org four hourrs ago:
phys.org/: Researchers claim photoluminescent aerogel has a visible light reflectance of 104%
Quote:
In this new study, the team in China reports that a passive radiative cooling material reflects more light than it receives due to its photoluminescence properties.
With photoluminescence, molecules absorb photons in the visible region and then excite their electrons to a higher state, resulting in light emission. Thus, if a material were to reflect 100% of the light that strikes it and additionally had photoluminescence, it could, in theory, reflect more light than it received.
To create such a material, the research team added freeze-dried salmon sperm DNA to a sample of gelatin. They allowed it to sublimate, leaving behind a layered aerogel that was highly compressed. The research team explains that it is held together via hydrogen bonds between phosphates in the DNA and amino acids in the gelatin.
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So will it work (some might ask) with vaccinated Salmon sperm? ![Roll Eyes (Sarcastic)](/forum/images/smilies/rolleyes.gif)
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