10 things we didn't know last week
1. People played with a fifth suit of cards in the 1930s.
2. Silencers only quieten gunshots to the level of a pneumatic drill and are rarely used in murders.
3. A new species of spider that eats toads and fish has been discovered - and named Brian.
4. Four in five US army recruits have a close relative in uniform.
5. Homeless residents lived in army tents after the Great Fire of London.
6. The Northern Lights cause a headache for people drilling for oil in the Arctic.
7. Children as young as 12 can get married in the US state of Virginia.
8. The perfect time to break wind in front of a partner is between two and six months into the relationship.
9. Your phone's wi-fi may be giving away where you walk.
10. Perfect invisibility cloaks may actually be physically impossible.
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