If you have 1 billion dollars and spend $1,000 every day, it would take you 2,740 years to go broke.
31
Mars had an oxygen-rich atmosphere around 4 billion years ago
13
An unprotected human can survive up to 1.5 minutes in space with no permanent bodily damage.
82
No one knows Albert Einstein's last words. Just before he passed, he spoke several words in German, but his nurse only knew English.
154
There are so many kinds of apples that if you ate a new one everyday, it would take over 20 years to try them all.
34
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
A cow produces around 200,000 glasses of milk in her lifetime.
373