An airplane mechanic invented Slinky while he was playing with engine parts and realized the possible secondary use for the springs.
12
Whale oil was used in automobile transmissions as late as 1973.
56
If a car is travelling at 55 miles per hour it will travel 56 feet before the driver can shift his foot from the accelerator to the brake.
25
Any modern jet is capable of breaking the sound barrier.
34
First four countries to have television: England, the U.S., the U.S.S.R., and Brazil.
47
UFO sightings have reduced by over 80% since the introduction of smartphones and public access to HD video.
2
Originally, BMW was an airplane engine manufacturer.
69