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Top Posts (147) All Questions Answers | Votes Newest

89 Is it feasible to have a literal ivory tower? Mar 11 '18
79 Given an “indestructible” material used for armor - what are ways to explain that material not being used as a weapon as well? Jan 8 '16
70 Can a habitable world exist that would orbit in and out of a nebula? Mar 29 '18
50 Can spacecraft defend against antimatter weapons? How? Nov 12 '16
47 How would people in 17th century Salem react to modern day clothing Feb 19 '18
44 How far can a time traveller go into the past before his electrical equipment becomes unchargeable? Dec 20 '14
34 What's an astronomical event which happened about 10,000 years ago, which humans could have noticed? Dec 20 '18
30 What would World War I outcomes be if the Tunguska event had occurred over London in 1908? Oct 16 '14
27 How difficult would it be to turn the Asteroid Belt into a single body? What's the best method? Jan 24
27 Cyclops - depth perception issues Jul 17 '17
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