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Craig Constantine

programmer, system administrator, problem solver; casual mountain-bike cyclist, avid reader, student of aikido and parkour

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  • Pennsylvania, USA
  • constantine.name
  • Member for 6 years, 7 months
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  • Last seen 4 hours ago

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Top posts (3) All Questions Answers | Votes Newest

34 Can you tack against the sun using a solar sail? Jul 18 '13
11 Is it possible that a giant 10th planet exists in our solar system? Jul 16 '13
10 Is it possible to build a Dyson sphere or its variant in our solar system based on our current technology? Jul 16 '13

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