Any modern jet is capable of breaking the sound barrier.
34
A small airplane can fly backwards.
75
Technically speaking, crystal glass is actually a Liquid that flows very slowly.
43
Students at MIT developed a wristband that can regulate your “thermal comfort”, which could possibly eliminate the need for central heating and cooling.
17
The ball on top of a flagpole is called a 'truck'.
24
Whale oil was used in automobile transmissions as late as 1973.
56
