Every year around 1 billion Valentine cards are sent. After Christmas it's a single largest seasonal card-sending occasion.
14
An ounce of platinum can be stretched 10,000 feet.
40
A portion of the water you drink has already been drunk by someone else, maybe several times over.
170
Speed dating was invented by a Rabbi in 1999.
45
If you get water flowing fast enough, it can cut metal.
354
The world’s smallest book, “Teeny Ted from Turnip Town”, is 100×70 micrometers in size and requires a scanning electron microscope to read, as light beams are too large.
6
On average, the life span of an American dollar bill is eighteen months.
33
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