Korey Kiepert on roller coasters and what makes them work

I’ve never been on a roller coaster and don’t plan on changing that but the engineering behind them is still cool to me. For Wired’s “A World of Difference” series, Korey Kiepert from The Gravity Group discussed the 8 main types of roller coasters and explained how they worked and the differences between them.

Speaking of cool engineering, how about Half-Asleep Chris’s incredible LEGO railway? Or the Ryan O’Neill and his K’Nex rollercoasters?