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.
Jessica Leigh Clark-Bojin (aka @ThePieous) writes, “It is National Pie Day in America tomorrow (not to be confused with “International Pi Day” – the cooler big cousin of pie holidays on March 14th…) In honour of this occasion I’ve posted a new tutorial video that is very attainable for any novice pie-geeks out there thinking […]
Judah Adunbi is a 63-year-old black man who lives in Bristol, England, where he volunteered as chairman of the independent advisory group on race relations; police confronted him while he was walking his dog in front of his home on Saturday. When he refused to show them ID, they tasered him, sending him crashing to […]
Donald Trump’s press secretary Sean Spicer inaugurated his first day on the job by telling easily falsifiable lies about the relative sizes of the Trump inauguration crowds and those of the Obama administration.
Looking to upgrade your weekend? Here are three randomly awesome products on my mind this week.#3 FRESHeBUDS Pro Magnetic Bluetooth EarbudsAs more and more phones and gadgets switch to Bluetooth-only compatibility, you’ll need to get Bluetooth headphones like the rest of us. I’ve been super impressed with these affordable magnetic headphones. Pull the magnetic earbuds apart to auto-connect […]
Traditional folding wallets are designed for paper bills—but these days, carrying cash is rarely a necessity. More often than not, I don’t carry cash at all. This Bogui Clik Wallet is the best answer I’ve found for avoiding the hassle of those tight-fitting credit card pockets.This attractive, minimalist wallet features a protective lip, so my cards don’t […]
Using my iPhone while it’s charging is always a hassle. With tucked-away outlets and the meager length of included lightning cables, comfortable scrolling while plugged in is annoying. These 10-Ft MFi-Certified Lightning Cables are super convenient and probably the best iPhone accessory purchase I’ve made.At over three times the length of normal cables, these reach anywhere you […]