10 things we didn't know last week

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1. The first bar code on a commercial product was on a packet of Wrigley's Juicy Fruit chewing gum.

Find out more (Economist)

2. Leaving envelopes full of cash in public places is forbidden by French law, punishable with a maximum sentence of six months in jail and a fine of 30,000 euros.

Find out more (the Times)

3. Vampire bats have lost much of their ability to taste bitter flavours.

Find out more

4. Early risers are more unethical at night and night owls more immoral in the morning.

Find out more (Harvard Business Review)

5. Barack Obama has played golf 177 times since becoming president.

Find out more (Washington Post)

6. In Uruguay, football players who don't strive hard enough to win a game are called "pecho frío", which means "cold heart".

Find out more (Guardian)

7. You can peel 1kg of new potatoes in 50 seconds by putting the potatoes in a bucket, and using a hose and a drill.

Find out more (Daily Telegraph)

8. There have been 418 major drone crashes since 2001.

Find out more (Smithsonian)

9. Before this World Cup, England had never fielded a left-footed goalkeeper - that changed with Ben Foster's selection against Costa Rica.

Find out more (the Times)

10. What helps us associate hangovers with the desire not to drink so much again is the brain's lateral habenula.

Find out more (Daily Mail)

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