Whale oil was used in automobile transmissions as late as 1973.
56
Scientists in China have built a prototype high-speed maglev train that is theoretically capable of reaching speeds of up to 1,800 mph (2,900 km/h).
1
The first hard drive available for the Apple II had a capacity of only 5 megabytes.
46
Thomas Alva Edison patented almost 1,300 inventions in his lifetime!
144
A small airplane can fly backwards.
75
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
