In 2005, 25 percent of Americans over the age of 50 played video games, an increase from nine percent in 1999.
82
Babies crawl an average of 200m a day.
212
0.3% of solar energy from the Sahara is enough to power the whole of Europe.
310
By weight, Bone is five times stronger than steel.
417
There are more than 150 million sheep in Australia, and only some 20 million people.
247
On average, someone in the US suffers a stroke every 40 seconds; someone dies every 3 minutes from stroke.
57
Each day, there are over 120 million sexual intercourse taking place all over the world.
301