A company by name, Laser Power Systems has created a concept for a thorium-powered car engine. Thorium is naturally occurring radioactive chemical element, and the team uses bits of it to build a laser beam that heats water, produces steam, and powers an energy-producing turbine.
Thorium is one of the most dense materials on the planet. A small sample of it packs 20 million times more energy than a similarly-sized sample of coal, making it an ideal source of energy.
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