The ball on top of a flagpole is called a 'truck'.
24
An airplane mechanic invented Slinky while he was playing with engine parts and realized the possible secondary use for the springs.
12
The first alarm clock could only ring at 4 a.m.
120
A Citreon 2CV with an oil leak once travelled 500 miles through Italy after its gearbox was filled with bananas!
16
Whale oil was used in automobile transmissions as late as 1973.
56
Energy is being wasted if a toaster is left plugged in after use.
21
More than a billion transistors are manufactured every second.
-25
Car airbags kill 1 person for every 22 lives that they save.
80