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 cell phone store owner, whose business had been repeatedly burgled, decided to set up a trap room to capture the next person who tried to steal things from his store. Here’s a surveillance video showing that it worked perfectly.
Michael from Muckrock writes, “This time, she’s falling short on responding to public records requests, particularly one relating to her controversial visit with Pope Francis.”
In 1969, my friend Jacques Vallee published Passport To Magonia, the first study of how modern UFO sightings are just the latest interpretation of weird “visitation” experiences that people throughout history have experienced in different forms: angels, demons, fairies, devils, Our Lady of Fatima, and on and on. (No, Jacques doesn’t think UFOs are extraterrestrials […]
Shake, stir, and muddle your way to delicious homemade cocktails with this must-have bar set. Expect only the finest quality tools from MakersKit — enabling you to unleash your inner mixologist.Top 12 Favorite Things of 2014, Sunset MagazineQuart-size vintage-style Mason jar shakerRetro double jigger for accurate measurementsStrainer & spouts for a mixologist-style smooth pourHardwood muddler […]
The Lytro Illum dares to be different, boasting even more robust features than its first generation predecessor and a sleek design reminiscent of professional DSLRs. What’s so cool about it? Most cameras capture the position of light rays, producing a statoc 2D image.
SitePoint Premium is the ultimate e-learning library for web developers, designers, and digital professionals. Famous for their web development books written by industry leaders, they’ve expanded their content library to include in-depth video courses and short, handy screencasts partnering with A Book Apart and UX Mastery. Whatever you want to achieve in your web career, […]