The average American spends a third of their overall time online playing games and using social networks.
298
It took 200,000 years for humans to reach 3 billion in number. It took 40 years for the next 3 billion.
11
Yu Youzhen, a Chinese millionaire, works as a street sweeper for the sanitation department to set an example for her children.
11
If Earth's life was compressed into 1 year, then humans would have been around for only 2 seconds.
15
City dwellers have longer, thicker, denser nose hairs than country folks do.
48
Roughly a quarter of the world's people live in China.
50
Males sweat 40% more than females.
104