The first alarm clock could only ring at 4 a.m.
120
There's an "anti-smartphone" called John's Phone which can only make and receive calls.
7
Mico headphones read your brainwaves and select music based on your state of mind.
7
Technically speaking, crystal glass is actually a Liquid that flows very slowly.
43
Whale oil was used in automobile transmissions as late as 1973.
56
An airplane mechanic invented Slinky while he was playing with engine parts and realized the possible secondary use for the springs.
12
The cigarette lighter was invented before the match.
210
About 39,000 gallons of water are used to produce the average car!
14