The first commercially available amphibious vehicle capable of decent speeds--45 miles per hour on both land and water--is expected to go on sale in the U.S. by the end of this year. At $40,000 a pop, the Quadski is an expensive ATV (most go for less than $10,000), and it’s even expensive next to both an all-terrain vehicle and a personal watercraft (which retail somewhat more expensively than ATVs, but not by that much). But its amphibious nature is pretty dazzling: just drive into the water, push a button, the wheels retract upward, and five seconds later you’re cruising. The Quadski’s maker, Michigan-based Gibbs Sports Amphibians, hopes to sell 1,000 of them next year.
Five amazing, clean technologies that will set us free, in this month's energy-focused issue. Also: how to build a better bomb detector, the robotic toys that are raising your children, a human catapult, the world's smallest arcade, and much more.