The first alarm clock could only ring at 4 a.m.
120
Sony researchers have developed a refrigerator that only opens when you smile.
9
UFO sightings have reduced by over 80% since the introduction of smartphones and public access to HD video.
2
More than a billion transistors are manufactured every second.
-25
The life boat was patented in 1845!
29
Jumbo jets use 4,000 gallons of fuel to take off.
19