10 things we didn't know last week

Atlantic salmon

1. A salmon cannon fires 40 fish a minute.

Find out more (Wired)

2. After the US, South Korea is the nation that sends the most missionaries around the world.

Find out more (The Economist)

3. It's possible to charge a phone using sweat.

Find out more

4. Wine kept in a cupboard at home ages four times as quickly as that stored in a professional cellar.

Find out more (The Times)

5. The sound of a ticking clock can make women keener to have babies younger.

Find out more (New York magazine)

6. One in 10 people in the UK does not have a close friend.

Find out more (The Independent)

7. Up to 8.5% of active Twitter users are not human.

Find out more (QZ)

8. Emails sent to employees of German auto manufacturer Daimler while they are on holiday are automatically deleted.

Find out more

9. Whales and dolphins squeal with pleasure.

Find out more (Daily Telegraph)

10. Electric cars and power tools could be powered using hemp.

Find out more

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