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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 9 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 9 months ago (1 children)

@[email protected] @[email protected] Peter F. Hamilton also uses the idea in a lot of various ways in his Salvation books. E.g. why deal with complicated propulsion systems when you can chuck the ingress end of a portal into a star and stick the egress end on the back of your ship.

[–] [email protected] 1 points 9 months ago (1 children)

@[email protected] @[email protected] A portal gun (with the other end of the portal inside the photosphere of a blue-white supergiant) makes a really neat blaster!

[–] [email protected] 1 points 9 months ago (1 children)

@[email protected] @[email protected] @[email protected] Backblast might make it a weapon of last resort, though.

[–] [email protected] 1 points 9 months ago

@[email protected] @[email protected] @[email protected] true, but the fun part of a portal-ship is that there's really no difference between a crewed lander and a remote-controlled doomsday missile.

if you land somewhere uninhabited and/or friendly, you can drop a portal and then send people through. if it's unfriendly, you open the supergiant portal, and have the portal gun throw itself through a return-home portal that instantly closes. you build another ship