- Sound travels 15 times faster through steel than air.
- The longest word that can be typed using only our right hand is 'lollipop'.
- The center of the Sun is approximately 15 million C (27 million F).
- Warthogs live for 15 years.
- You can only see a rainbow if you have your back to the sun.
reload more facts | visit cool facts
add this widget to your website