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Posts by justthisonequestion‭

6 posts
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Q&A 'Nuke the sky' to make a rocket launch a tiny bit easier

My aliens want to build the heaviest chemical rocket possible: They never were much into space travel, since their planets' gravity is about 1.5 of ours. They made lots of bad experiences fighting ...

6 answers  ·  posted 4y ago by justthisonequestion‭  ·  last activity 4y ago by justthisonequestion‭

Question atmosphere rockets
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Q&A How to transform a cells energy source into explosives

I'm basically searching for an ATP that can be used to supply cells and also have its energy extracted efficiently into a basic form of explosive material (the stronger the better) without a lot of...

4 answers  ·  posted 4y ago by justthisonequestion‭  ·  last activity 4y ago by justthisonequestion‭

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Q&A When will the last white dwarfs become black dwarfs?

I want my planet to be the last planet in a universe to host life forms. I expect a rough estimation as answer. Thanks.

1 answer  ·  posted 4y ago by justthisonequestion‭  ·  last activity 4y ago by justthisonequestion‭

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Q&A Good explanation for why aliens can't build nuclear engines?

"Aliens used uranium and plutonium to generate energy for thousands of years. However, by the time they got into space exploration, they've used up every last bit of it. That's why they'll have to ...

7 answers  ·  posted 4y ago by justthisonequestion‭  ·  last activity 4y ago by justthisonequestion‭

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Rigorous Science What's the limit of my rockets weight?

I want to launch the heaviest booster + spaceship possible in about 1.5 of earths gravity, using the technology we currently have. To make things easier, imagine there was the same atmosphere as on...

3 answers  ·  posted 4y ago by justthisonequestion‭  ·  last activity 4y ago by justthisonequestion‭

Question gravity rockets
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Rigorous Science How does one calculate the diameter of a 'space fountain'?

I need to know how wide the diameter of a space fountain's* particle stream is in relation to the mass it's trying to support. It would have to lift its mass at least 40000 kilometers. The vacuum...

2 answers  ·  posted 4y ago by justthisonequestion‭  ·  last activity 4y ago by justthisonequestion‭