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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 8 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 8 months ago

BTW, as a variant on the kzinti lesson, the portals are extremely dangerous as a weapon, because of how good they are as a weapon.

Ignoring the obvious ways to fight with them like opening a portal on the enemy's hull, shoving out a nuke and then closing the portal...

You could also just have a rock that you're letting accelerate to arbitrary speeds in a vacuum. That's free unbounded kinetic energy, the only limitation being the "charge" time.

[-] [email protected] 1 points 8 months ago

@[email protected] there are no unarmed spaceships

[-] [email protected] 1 points 8 months ago

@[email protected] I recall Peter F. Hamilton doing just that in one of his books. The nuke part at least. Not sure about the space rock yeeting.

[-] [email protected] 1 points 8 months ago

@[email protected] I love this, just for the "Variant of the Kzinti lesson" reference.

[-] [email protected] 1 points 8 months ago

@[email protected] k'chee u'riit maraai, indeed.

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this post was submitted on 16 Jan 2024

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