It's a dream come true for middle-age kids everywhere. Mattel has produced a life-size version of its original Hot Wheels car, 1969's
Twin Mill. Powered by two Chevy 502 big blocks, the real Twin
Mill reportedly spits out more than 1,400 horses. And while it's fully driveable, it's built to be shown off at auto shows and races, not on the street. And no, it's not for sale.
The incredible innovations, like drone swarms and perpetual flight, bringing aviation into the world of tomorrow. Plus: today's greatest sci-fi writers predict the future, the science behind the summer's biggest blockbusters, a Doctor Who-themed DIY 'bot, the organs you can do without, and much more.