Not swinging your arms when you walk increases the effort of walking by 12%, the equivalent of walking 20% faster or carrying a 10 kg backpack.
12
The iconic roar made by Godzilla was produced by rubbing a leather glove across the strings of a double bass.
11
If two pieces of metal touch in space, they become permanently stuck together.
808
Japanese engineers were asked to redesign the front end of the Bullet Train because it carried enough speed to create a sonic boom whenever it exited a tunnel. Residents could feel the blast from miles away.
11
Poor eyesight (myopia) is associated with higher IQ.
232