7 things 'crazy' happen while you sleep
You may never know the 'crazy' things below, they cause your sleep to behave strangely, horribly.
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- Why are diesel engines not used in small cars?
- Why does every lock have a 'mysterious' small hole at the bottom?
- Why is Mount Everest so attractive to so many people?
- Why will the Earth never be 'swallowed' if one day the Sun turns into a black hole?
- Record selling price for the gold watch of the richest passenger on the Titanic
- Humans' heat tolerance limit is not as high as we think
- Atomic clocks are off by only 300 trillionths of a second every day
- China wants to bring Mars samples before the US