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
Water is actually naturally blue.
48
The first household refrigerators cost about $16,000, in today's money!
47
There are approximately three million shipwrecks on the ocean floor, worth billions in value and treasure.
22
A typical lead pencil can draw a line that is 35 miles long.
158
Studies show that the colder the room you sleep in, the more likely you are to have a bad dream.
28
Music is as addictive to the brain as sex and drugs.
27