Whale oil was used in automobile transmissions as late as 1973.
56
A toaster uses almost half as much energy as a full-sized oven.
33
An airplane mechanic invented Slinky while he was playing with engine parts and realized the possible secondary use for the springs.
12
The ball on top of a flagpole is called a 'truck'.
24
To have your picture taken by the very first camera you would have had to sit still for 8 hours!
308
In 1998, Sony accidently sold 700,000 camcorders that had the technology to see through people's clothes.
88