A Princess's Plan to Bring Light to the 620 Million Africans Without Power

Many people living in Africa need electricity, but don’t have it. Luckily, something of a solar power revolution is afoot in Africa, triggering a wave of innovation from solar energy entrepreneurs. One of them is a princess descended from an ancient Mossi warrior, who stresses that the best way to combat this problem…

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Everything You Need to Know About Tesla's New Household Batteries

Tesla unveiled a new product line at its design studio in LA tonight. It’s called Tesla Energy and it’s a suite of batteries for homes and for businesses. The existence of the batteries has been one of the worst kept secrets of all time. But we are here at the announcement event and finally have some details. And…

Hitting semiconductors with a superfast electric pulse massively increases their efficiency


Researchers from Kyoto University have discovered a new technique that could dramatically improve the efficiency of some semiconductors. They took gallium arsenide, and blasted it with a terahertz range electric field pulse for just a picosecond, which lead to a 1,000-fold increase in exciton density. An exciton is a…

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