DIY rollercoaster zips through a house on a 28-mph electric skateboard

Skip the lines at Six Flags — and build your own rollercoaster at home. That’s why inventor Drew Dirksen, 27, did with simple materials such as wood, PVC pipes, desk chair wheels and an old skateboard. Even cooler, his epic DIY project goes through mulitple rooms inside his house in Ohio and ends in the...