If you have 1 billion dollars and spend $1,000 every day, it would take you 2,740 years to go broke.
31
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 who laugh more are better able to tolerate pain - both physical and emotional.
36
You can actually sharpen the blades on a pencil sharpener by wrapping your pencils in aluminum foil before inserting them.
209
Blue light fends off drowsiness in the middle of the night, which could be useful to people who work at night.
240
The average IQ is 100, while 140 is the beginning of genius IQ.
140
Fine-grained volcanic ash can be found as an ingredient in some toothpastes.
55