2 Articles
Perpetual Power? NASA creates submersible that can run nearly forever

Well, it's not exactly perpetual motion or energy, but it's getting closer than most such attempts. Plus, instead of being backed by some sort of random crackpot scientist, this particular project has the backing of NASA and the U.S. Navy. So, what is it? (Take a deep breath.) The Sounding Oceanographic Lagrangrian Observer Thermal Recharging (SOLO-TREC) autonomous underwater vehicle. Says Jack Jones, a JPL principal engineer and SOLO-T

Electric car that recharges its battery with only regenerative braking?

Today's Toronto Star (Canada's highest circulated newspaper) asks you to image the following: