The ball on top of a flagpole is called a 'truck'.
24
Any modern jet is capable of breaking the sound barrier.
34
An airplane mechanic invented Slinky while he was playing with engine parts and realized the possible secondary use for the springs.
12
There’s an internet-enabled jacket which gives you a “hug” every time a Facebook friend likes your status.
12
Sony researchers have developed a refrigerator that only opens when you smile.
9
A fully loaded supertanker traveling at normal speed takes a least twenty minutes to stop.
27
The IRS processes more than 2 billion pieces of paper each year.
28