It takes six months to build a Rolls Royce...and 13 hours to build a Toyota.
93
An airplane mechanic invented Slinky while he was playing with engine parts and realized the possible secondary use for the springs.
12
Any modern jet is capable of breaking the sound barrier.
34
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
The cigarette lighter was invented before the match.
210


