The cigarette lighter was invented before the match.
210
Super Nintendo and Sega Genesis had an online multiplayer mode.
-2
In the early 1960's, Porsche commercially manufactured farm tractors.
24
Castor oil is used as a lubricant in jet planes.
-5
Any modern jet is capable of breaking the sound barrier.
34
Energy is being wasted if a toaster is left plugged in after use.
21