Levitating Sled Sets New World Speed Record

A new magnetic levitating (maglev) sled has blasted its way to a world speed record. The lightning-fast sled is officially the fastest object of its kind, according to the U.S. Air Force. The 2,000-lb. (900 kilograms) sled, which was designed by an Air Force squadron to test the delicate instruments inside weapons systems, broke the world record for speed on March 4, eclipsing its own previous record that had been set just two days earlier.