No battery? No problem. At Penn, a mini electric car draws energy from its surroundings.
No battery? No problem. At Penn, a mini electric car draws energy from its surroundings. Tom Avril, The Philadelphia Inquirer © ALEJANDRO A. ALVAREZ/The Philadelphia Inquirer/TNS The car can steer itself to draw energy from metal surfaces, avoiding nonmetal surfaces such as this yellow tape. The technology also could run generators during power outages. Min Wang placed the miniature electric car on a sheet of aluminum, and immediately — despite having no battery — the vehicle began to move. Its power supply was the metal beneath it, with an assist from oxygen in the sur...
Source: msn.com