Green Options

In what is being touted as the first time humans have remotely controlled insects, University of California at Berkeley engineers successfully implanted radio-equipped, “miniature neural stimulation” systems into flying beetles–most notably, the “elephant” beetle Megasoma elephas (pictured above), which can grow up to 20 cm (about 7 + inches) in length.

Think about how often your cell phone is plugged into a jack. What if there was a way to eliminate all that power use? There may be, according to Tahir Cagin, a professor at Texas A&M University. Cagin and his colleagues have discovered a way to power cell phones using sound waves produced by the user.