
Tesla
Wasn't that the one that some people say that Tesla made with Wardenclyffe?
The largest earth "impact" of recent times, the Tunguska event, might have left a crater after all. The impact levelled more than 2,000 square kilometres of forest in Siberia, but is thought to have been caused by an asteroid or comet exploding in Earth's atmosphere since no crater marking the impact has ever been found. Now …