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In Portal, using the portal gun to get to the moon is the obvious space travel usage, but I think people are overlooking how it'd let you trivially break the rocket equation. (digipres.club)

submitted 10 months ago by [email protected] to c/[email protected]

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In Portal, using the portal gun to get to the moon is the obvious space travel usage, but I think people are overlooking how it'd let you trivially break the rocket equation.

Hell, you could build a >1g torchship using nothing but the ocean.

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[–] [email protected] 1 points 10 months ago (1 children)

@[email protected] @[email protected] not if you've got portals! you can harvest remass from the bottom of a gravity well and transport it anywhere, for free!

[–] [email protected] 1 points 10 months ago

@[email protected] @[email protected] oh, put the planteside portal low in the gravity well where the atmospheric pressure matches your requirements and have the shipboard aperture vent directly into space, won’t even need to torch it

...it would very slightly suck the gas giant towards the planetside portal though