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
Energy is being wasted if a toaster is left plugged in after use.
21
Attics were invented in Attica.
43
The life boat was patented in 1845!
29
Scientists in the UK are creating a smartphone app that will enable users to test for STDs.
0
A fully loaded supertanker traveling at normal speed takes a least twenty minutes to stop.
27
