If you have 1 billion dollars and spend $1,000 every day, it would take you 2,740 years to go broke.
31
Your body is creating and killing about 2.4 million red blood cells per second.
17
If Earth's history was condensed into twenty-four hours, life would've appeared at around 4am, land plants at 10:24pm, dinosaur extinction at 11:41pm, and human history would’ve began at 11:58:43pm.
21
Cows can sleep standing up, but they can only dream lying down.
745