The first alarm clock could only ring at 4 a.m.
120
Students at MIT developed a wristband that can regulate your “thermal comfort”, which could possibly eliminate the need for central heating and cooling.
17
Energy is being wasted if a toaster is left plugged in after use.
21
Any modern jet is capable of breaking the sound barrier.
34
A car operates at maximum economy, gas-wise, at speeds between 25 and 35 miles per hour.
-4
Castor oil is used as a lubricant in jet planes.
-5
About 39,000 gallons of water are used to produce the average car!
14
A small airplane can fly backwards.
75