Light
Pentagon-supported physicists on Wednesday said they had devised a “time cloak” that briefly makes an event undetectable. It’s one thing to make an object invisible, like the Romulan Cloaking device from Star Trek. But scientists have made an entire moment in time impossible to see. They have invented a time masker. Think of it as [...]
(PhysOrg.com) — Researchers from the National Renewable Energy Laboratory (NREL) have reported the first solar cell that produces a photocurrent that has an external quantum efficiency greater than 100 percent when photoexcited with photons from the high energy region of the solar spectrum. The external quantum efficiency for photocurrent, usually expressed as a percentage, is the number [...]
http://www.indiegogo.com/luminaid LuminAID: Give Light, Get Light from LuminAID Lab on Vimeo. I wanted to spread the word about this very worthy project. Give the gift of light to those in need. LuminAID: Give Light, Get Light About the Project LuminAID Lab is proud to introduce the LuminAID light: a solar-rechargeable, inflatable lamp that packs flat and inflates to [...]
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