A typical full-time worker in the US with a four-year college degree earns about $50,000. This is 62% more than a worker with only a high-school diploma.
72
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 glue on Israeli stamps is certified kosher.
67
When glass breaks, the cracks move faster than 3,000 miles per hour. To photograph the event, a camera must shoot at a millionth of a second!
114
Standard paper cannot be folded in half more than 7 times.
232
Blue light fends off drowsiness in the middle of the night, which could be useful to people who work at night.
240
Ice isn't slippery. What makes people and things slip on ice is water. A thin layer of ice melts when pressure is applied to it and it is this wet layer on top of the ice that is slippery.
153
One in five long-term love relationships began with one or both partners being involved with others.
177