How much area would be required to power the world (with solar panels alone)

I came across this particular pic which really made me think. I don’t know if they did the math right, but if they did, with a surface as big as the plastic island floating around in the Pacific covered with solar panels, the whole world could be powered. If we consider other sources of clean [...]

Electricity from trees

Researchers have figured out a way to ‘plug’ into electrical power generated by trees. It’s a well known fact for years that plants can conduct electricity (humans can too, take care kids), and now scientists from MIT found out just how much they can pack up: 200 millivolts of electrical power (=0.2 volts). The lemon and [...]