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Transportation

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Rebecca Boyle via PopSci.com

In huge city, lighting the streets is a necessary but pricey precaution. Pedestrians and motorists are no doubt safer when streetlamps, not just car headlights, illuminate roadways and sidewalks — but streetlamps are expensive and inefficient to run.

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Rebecca Boyle via PopSci.com

Cars are capable of driving and parking themselves while avoiding obstacles, but they need to see their surroundings. How do you know you’re a safe distance from vehicles around you when dark outside, or when headlights can’t penetrate the fog?

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Rebecca Boyle via PopSci.com

Rogers’ team of designers and engineers at in Phoenix built the car, nicknamed FLYPmode, from scratch in less than four months, unveiling it for President Obama last week before delivering it to the military’s mad-science division in Virginia.

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Katherine Bagley via PopSci.com

Outfitted with a 1500cc engine, a watertight cockpit and six dolphin-like fins, the Innespace Seabreacher redefines personal watercraft. The 17-foot vessel can reach 50 mph on flat water, cruise beneath the surface, and launch 18 feet into the air.

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