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- 131 Couldn't I escape Earth's gravity traveling only 1 mph (0.45 m/s)?
- 98 Is it possible for a moon to have a higher surface gravity than the planet it is attached to?
- 81 How do laser "tape measures" work?
- 79 Why are ships in Star Wars so ridiculously easy to steal?
- 74 Is it unsafe to remove one stud from a load bearing wall?
- 64 Why do most banks in Canada charge monthly fee?
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