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Peter Martyn's user avatar
Peter Martyn's user avatar
Peter Martyn's user avatar
Peter Martyn
  • Member for 3 years, 10 months
  • Last seen more than a month ago
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School bus driver.

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question
2
How long can a high altitude balloon fly before a meteor hits it?
Jul 12, 2019
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Titan vs Mars for colonization
Jun 23, 2022

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