You can tape a small mirror onto a cone speaker, play music and shine a laser on to the mirror and the reflection will look like a laser light show on your wall.
102
Since 1982, a radio frequency emanating from Russia has been broadcasting a buzzer-like sound and, periodically, an unknown voice reads orders, names, and numbers. No one knows where exactly it is coming from or what it means.
13
When someone looks at a new love, the neural circuits that are usually associated with social judgment are suppressed.
130
Like fingerprints, everyone's tongue print is different.
250
If you get water flowing fast enough, it can cut metal.
354
The symbol on the 'pound' key (#) is called an octothorpe.
82
The Main Library at Indiana University sinks over an inch every year because when it was built, engineers failed to take into account the weight of all the books that would occupy the building.
240
An Australian study found that homework is of little to no academic value to students in elementary and junior high schools.
32