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
The chlorine smell in swimming pools is accentuated by the chemical's reaction with impurities (like poop.)
7
The full moon causes a tidal wave to roll up the Amazon river once in day and once in night for a period of only three weeks in a year. This results in continuous 4m high wave that can be surfed for up to 13km.
14
If you counted 24 hours a day, it would take 31,688 years to reach one trillion!
44
Linen can absorb up to 20 times its weight in moisture before it feels damp!
46
The Band-Aid was originally made for the inventor's wife, who often cut and burned herself while cooking.
6
Water is actually naturally blue.
48