Tiny sea creatures feature transparent optical systems as tough as their shells.

Sea-dwelling mollusks called chitons have armor-plated eyes embedded in their shells, and this incredible feature could provide a model for protective armor that could be used by the army and workers exposed to dangerous conditions. The chitons, or Acanthopleura granulates, have hundreds of these armored eyes on the surface of their shells, MIT reported. Unlike most eyes in the biological world that are made primarily of protein, these eyes are made of the mineral aragonite, but can still form f...
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3-D Printing Breaks the Glass Barrier

Researchers have cracked the challenge of printing glass through a nozzle. A team of MIT researchers have opened up a new frontier in 3-D printing which is the ability to print optically transparent glass objects. They demonstrated the first-ever machine that can print molten glass through a nozzle and make transparent glass objects layer by layer according to digital instructions. The 3-D printer G3DP produces optically transparent glass with the push of a button and contains a "kiln cart...
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A new sunblock that does not penetrate the skin

Researchers at Yale have developed a sunscreen made with bioadhesive nanoparticles that is not only waterproof, but does not penetrate the skin barrier, eliminating the health concerns associated with commercial sunscreens. While sunblocks are good at preventing sunburn and decreasing the risk of skin cancer from sun exposure, nanoparticles designed to reflect or absorb cancer-causing ultraviolet light, can go below the skin’s surface and enter the bloodstream. As a result, they pose possible...
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Improving Solar Efficiency with Stanford coating

Stanford engineers invent transparent coating that cools solar cells to boost efficiency. A transparent material that can improve the efficacy of solar cells, this coating has been invented by three Stanford engineers and has the tendency to radiate thermal energy into space which is released by solar cells, making cells cool. This invention shunts away the heat generated by a solar cell under sunlight and cools it in a way that allows it to convert more photons into electricity. The gr...
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