Philips Research Laboratories engineers have taken inspiration from moth eyes to develop a coating for solar cells that increases their efficiency. Nanostructures, comparable to the tapered structures on the insects' eyes, reduce the amount of light that's reflected off the photovoltaic material. From Physics World:
To maximize the amount of light entering (moths') eyes, to help them see at night, the insects' eyes are covered in tapered nanostructures. This creates an "effective medium" where the refractive index gradually increases as light travels from air through to the insects' optical nerve. The resulting effective index is close to one, which means that very little light is reflected out of the eye.
Inspired by these biostructures, Gomez Rivas and colleagues have mimicked the effect by growing nanowires of different lengths - creating a metamaterial with optical properties that change gradually as a function of distance.
"Moth eyes inspire more efficient solar cell
" (via Daily Grail)
A group of law professors have sent a letter to the Office of Disciplinary Council at the D.C. Court of Appeals calling for sanctions against White House counselor Kellyanne Conway. “It is professional misconduct for a lawyer to [e]ngage in conduct involving dishonesty, fraud, deceit, or misrepresentation,” the letter states. According to New York Daily […]
There’s carry-on and checked baggage, but what do you call luggage that weighs 506 tons, including two Mercedes limousines and two elevators? It’s just a nine-day trip to Indonesia, but Saudi Arabia’s King Salman bin Abdul Aziz isn’t leaving any of his creature comforts behind. According to the Washington Post: The Saudi royal is expected […]
When I saw that the cell phone designed for rectal smuggling was called “Beat the Boss,” I assumed “The Boss” was a synonym for “The Man,” but it turns out it’s a reference to a specific product: Xeku’s Body Orifice Security Scanner (BOSS), a “hygienic cavity search” chair that scans prisoners for rectal contraband.
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Although there will never be a consensus about the best way to make coffee, any coffee connoisseur will agree that controlling the grind of your beans and balancing water temperature are the keys to a tasty cup. Since your plastic coffee pot doesn’t really allow for that kind of customization, going back to the French […]