Sony researchers have developed a refrigerator that only opens when you smile.
9
Whale oil was used in automobile transmissions as late as 1973.
56
The first alarm clock could only ring at 4 a.m.
120
In the early 1960's, Porsche commercially manufactured farm tractors.
24
It would take twenty new mid-size cars to generate the same amount of pollution that a mid-size 1960's car did.
20
There are only 14 blimps in the world.
69
UFO sightings have reduced by over 80% since the introduction of smartphones and public access to HD video.
2