Castor oil is used as a lubricant in jet planes.
-5
The IRS processes more than 2 billion pieces of paper each year.
28
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
Windmills always turn anti-clockwise. Except for the windmills in Ireland!
184
Originally, Nintendo was a playing card manufacturer.
70
The life boat was patented in 1845!
29
Whale oil was used in automobile transmissions as late as 1973.
56