The first alarm clock could only ring at 4 a.m.
120
The ball on top of a flagpole is called a 'truck'.
24
Students at MIT developed a wristband that can regulate your “thermal comfort”, which could possibly eliminate the need for central heating and cooling.
17
It would take twenty new mid-size cars to generate the same amount of pollution that a mid-size 1960's car did.
20
More than a billion transistors are manufactured every second.
-25
An airplane mechanic invented Slinky while he was playing with engine parts and realized the possible secondary use for the springs.
12
UFO sightings have reduced by over 80% since the introduction of smartphones and public access to HD video.
2