- An average person will spend 25 years asleep.
- Halley's comet passes the Earth every 76 years (the next time it will return will be 2062).
- DVDs are physically the same size as a CDs but can store 13 times more data.
- Diamonds are the hardest natural substance.
- Caterpillars have over 2,000 muscles.
advertisement
reload more facts | visit cool facts
add this widget to your website
|