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Posts by Tonny‭

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Q&A Asteroid impact. How big does it have to be to globally affect plate tectonics?

I want to know about the plausibility and required parameters of the following scenario: Take an Earth-like planet, about the same size, composition and gravity. It has no plate tectonics to speak...

5 answers  ·  posted 10y ago by Tonny‭  ·  last activity 5y ago by Tonny‭

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Q&A Compatible biochemistry, or not?

I showed a draft of a short story I wrote to some friends and got a very derisive comment from the chemist in the group. According to him the chemistry just isn't possible. I'd like a second opi...

8 answers  ·  posted 10y ago by Tonny‭  ·  last activity 9y ago by Tonny‭

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Q&A Effect on our climate if gravity got lowered by alien tech

A few years from now, say 2025 or thereabouts, a technologically advanced alien civilization discovers our solar system. They study us for over a year, using small drones that launch from a vessel ...

3 answers  ·  posted 9y ago by Tonny‭  ·  last activity 7y ago by Tonny‭

Question climate gravity
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Q&A Safest place to park a spaceship close to the Sun

Suppose that I have a spherical space-ship with an approximately 1 kilometer diameter. For some reason I need to park it (unmanned) for a long period (100+ years) fairly close to the Sun. (Half the...

5 answers  ·  posted 8y ago by Tonny‭  ·  last activity 8y ago by Tonny‭

Question astronomy