Scientists have designed and constructed a prototype for a new solar cell that integrates multiple cells stacked into a single device capable of capturing nearly all of the energy in the solar spectrum. The new design converts direct sunlight to electricity with 44.5 percent efficiency, giving it the potential to become the most efficient solar […]
Scientists Design Solar Cell That Captures Nearly All Energy Of Solar Spectrum
Scientists have designed and constructed a prototype for a new solar cell that integrates multiple cells stacked into a single device capable of capturing nearly all of the energy in the solar spectrum. The new design converts direct sunlight to electricity with 44.5 percent efficiency, giving it the potential to become the most efficient solar […]
Building a Machine to Mimic Sea Lions
At a maximum speed of 25 miles per hour, sea lions may not be the fastest-swimming mammal in the sea. But they are unrivaled when it comes to stealth–their signature clap-and-glide flipper motion propels them through water and leaves virtually no wake. Megan Leftwich, a George Washington University professor of mechanical and aerospace engineering, took […]