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- 200 I'm stranded on an alien planet. How do I measure an earth year without a clock?
- 77 If magic is real, can it be true that rational scientific thought should exclude it?
- 30 Can a planet have a day that's always longer than night?
- 19 My time machine can go back farther than yours -- why?
- 19 If the Apollo mandate were delivered today, would the mission vehicle(s) and profile be similar?
- 17 Science, Religion, Magic: Can they be maintained in equal and parallel opposition?
- 17 A Sailing Ship With Cylindrical Sails
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