This electric powertrain company out of England is putting together the most power-dense electric motors in the automotive ...

Solar sails have some major advantages over traditional propulsion methods—most notably, they don't use any propellant. But, ...

Investopedia contributors come from a range of backgrounds, and over 25 years there have been thousands of expert writers and editors who have contributed. bluestocking / Getty Images Load and no-load ...

Troy Segal is an editor and writer. She has 20+ years of experience covering personal finance, wealth management, and business news. Gordon Scott has been an active investor and technical analyst or ...

The average temperature of the Earth is rising at nearly twice the rate it was 50 years ago. This rapid warming trend cannot be explained by natural cycles alone, scientists have concluded. The only ...