MIT undergrad Charles Guan has converted an old shopping cart into a speedy go-kart, which he dubs the LOLriokart (a combination of internet slang and the popular video game Mario Kart). Check out Popular Science for a run-down of how he made it. [PopSci]
For years engineers have been working to make cars less noisy, but now it turns out the electric car may be too quiet. Carmakers are thinking about adding some artificial sound to make sure pedestrians can hear it. [Washington Post]
It really is faster than a speeding bullet. Built for the express purpose of beating the current land speed record, Britain’s Bloodhound SSC features an awesome Eurofighter-Typhoon jet engine and hybrid rocket motor. It’s predicted to reach speeds of 1,000 miles per hour. But how does it stop?