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
People spend about two weeks of their lives at traffic lights!
159
The sound you hear when you crack your knuckles is actually the sound of nitrogen gas bubbles bursting.
244
Fine-grained volcanic ash can be found as an ingredient in some toothpastes.
55
Your fingernails grow faster in summer.
744
Water is actually naturally blue.
48
62% of us pop our zits.
137