- 80% of all people hit by lightning are men.
- A nanosecond is one billionth of a second.
- Bottle nosed whales can dive to a depth of 915 metres (3,000feet) in 2 minutes.
- The world's first paved streets were laid in Rome in 170 B.C..
- It takes 5 years for an oyster to produce a medium sized pearl.
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