 The lint roller was co-invented in 1956 by American electrical engineer Nicholas McKay and his wife Helen.1956 Kart racing

Kart racing or karting is a variant of an open-wheel motor sport with simple, small four-wheeled vehicles called karts, go-karts, or gearbox karts depending on the design.Karts vary widely in speed and some can reach speeds exceeding 160 mph, while go-karts intended for the general public in amusement parks may be limited to speeds of no more than 15 mph.