David Yawger

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The Swiss have upgraded a hydroelectric dam to produce as much energy as a nuclear power plant

We need batteries that can power millions of homes, deliver excellent efficiency, and cost little to operate. It turns out we’ve had the technology since 1890. We just need to build a lot more of them.<p>They’re called pumped water storage, and the technology is the world’s largest energy storage …

Hydroelectric Power

The World's Eeriest Underwater Cities You Can Actually Visit

<i>By: Elspeth Velten</i><p><i>Credit: michaelangeloop/Shutterstock</i><p>From Olympic venues, subway stations, and Old West towns to creepy amusement parks, Chernobyl, and the eeriest spots in the Midwest, we've toured A LOT of abandoned places (well, at least virtually). But one place we haven't ventured -- under …

Perry Brass: The Manly Pursuit of Desire: 10 Days in Havana, Part One

The author near the Capitol, in Havana, with some of Cuba's famous old American cars, most of which are used in one way or another as taxis.<p>I spent ten days in Havana, Cuba, from February 9, 2016 to February 19, 2016--roughly a month before President Obama made his historic trip. It was my first …