Scavenging ambient electromagnetic energy

energy_harvesting_from_radio_waves

At this very moment, unseen radio waves are bouncing off almost everything that surrounds you. Emitted by everything from radio and TV stations to cell phone networks and satellites, these waves are full of unharnessed energy. That is, until now. Researchers at the Georgia Tech School of Electrical and Computer Engineering have been working diligently to harness this unused energy, … Read the rest

Hand-built car made almost entirely from scavenged parts

shrimpmobile_scrounged_car

So you’ve swapped out your car’s motor or added new tranny. Perhaps you’ve rewired your ancient VW bus from 6v to 12v. Do you think that makes you a car expert? [Orismar de Souza] might beg to differ.

The homeless Brazilian native has spent the last four years of his life building a car from sheet metal and junked partsRead the rest