A small airplane can fly backwards.
75
Jumbo jets use 4,000 gallons of fuel to take off.
19
An airplane mechanic invented Slinky while he was playing with engine parts and realized the possible secondary use for the springs.
12
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
Henry Ford produced the model T only in black because the black paint available at the time was the fastest to dry.
33
The IRS processes more than 2 billion pieces of paper each year.
28


