You can start a fire with ice.
367
In the case of an emergency, a Crayola crayon can be used as a candle and will burn for about 15 minutes.
36
American car horns beep in the tone of F.
66
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
There is a fake village with fake shops and restaurants that is actually a care home for elderly dementia sufferers in the Netherlands.
7
You can actually sharpen the blades on a pencil sharpener by wrapping your pencils in aluminum foil before inserting them.
209
Over its lifetime, the average microwave requires more energy to display a digital clock than to heat food.
10
A pipe 2 feet in diameter will allow four times more fluid to pass through it than a pipe 1 foot in diameter.
20