this post was submitted on 07 May 2024
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xkcd

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While it seemed like a fun prank at the time, I realize my prank fire extinguishers full of leaded gasoline were a mistake.

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[–] [email protected] -3 points 6 months ago (1 children)

It could get up to a few percent of the speed of light.

So could a person sticking their head out and blowing, but it's still a terrible idea.

[–] [email protected] 8 points 6 months ago* (last edited 6 months ago) (1 children)

Just as an observation, there was a time when everyone on the Internet was gaga over the idea of Project Orion, and you didn't dare speak out against it lest you get a hail of downvotes.

It'd work fine in deep space. It's not a good idea to launch from Earth this way. But again, we'll probably find something better once we're at the stage of needing it.

[–] szczuroarturo -1 points 6 months ago (1 children)

But then how would you launch nukes on orbit without the risk of accudental nuclear explosion?

[–] [email protected] 9 points 6 months ago

Implosion-type nukes are all but impossible to make go off that way. They need a whole bunch of small explosives to go off very precisely to squeeze the core in just the right way. A short circuit or a crash won't have the necessary precision. This isn't entirely safe, either--it can still cause a small explosion with a flash of fallout and radiation--but it's a manageable problem.

Gun-types (Little Boy was one) are easier to go off on accident, but the US retired its last gun-type design decades ago. I don't think Russia used them much, either. They're only good for smaller bombs, and their safety issues make them questionable for any use. Smaller nuclear powers aren't bothering with them.