The oil used by jewelers to lubricate clocks and watches costs about $3,000 a gallon.
41
Energy is being wasted if a toaster is left plugged in after use.
21
The first hard drive available for the Apple II had a capacity of only 5 megabytes.
46
Any modern jet is capable of breaking the sound barrier.
34
Students at MIT developed a wristband that can regulate your “thermal comfort”, which could possibly eliminate the need for central heating and cooling.
17
Scientists in the UK are creating a smartphone app that will enable users to test for STDs.
0