[baq]

> I wonder what about the design makes it a rocket compared to what I would assume is a pretty standard design?

Injuries nonwithstanding, the quality of the seal means it was an exceptionally well designed item for the purpose of storing 99% water.

side note: there's a reason you get a visit from the FBI if you buy ten pressure cookers (e.g. if you find a great Black Friday deal and have a large family and plan Christmas gifts...)

[data-ottawa]

I’ve exhausted the branches of my imagination, what is the danger of 10 pressure cookers?

[Hobadee]

You can make bombs out of pressure cookers. Since they are so good at holding pressure, you seal off the over-pressure release valves and then pressurize them until they burst (usually via some stupid or illegal means to begin with) then when they burst there is a ton of excess pressure. Big pressure = big boom.

[ReptileMan]

They are exactly as good as any other pot made of 18/10 steel with similar thickness. Other vessels like propane tanks are much better.

Boston marathon worked because - well pressure cookers at the time didn't draw much attention to them.

[walrus01]

But if you're not working with cutting torches and welding equipment, there's no easy way to open a propane tank enough to put an explosive in it (assuming purely amateur equipment) and then seal it up again good enough to hold high pressure. A pressure cooker on the other hand is ready made to have a big opening to put lots of stuff inside and then seal it up again.

[walrus01]

there's tons of material online from religious radical groups on how to turn one into an IED

[shepherdjerred]

e.g https://en.wikipedia.org/wiki/Inspire_(magazine)

[RattlesnakeJake]

"Make A Bomb In The Kitchen Of Your Mom" sounds like the beginning of a teenager's bad joke

[baq]

under no circumstances should you google the anarchist's cookbook

[masfuerte]

They make great bombs.

[malfist]

Find me a news story about a person who got a visit from the FBI after buying 10 pressure cookers.

That beggars the imagination. You think the FBI is monitoring the sales of every restaurant supply store?

[Litost]

Here's a story in the Guardian about a women who was visited by local police in New York after her family searched for pressure cookers and backpacks.

https://www.theguardian.com/world/2013/aug/01/new-york-polic...

Though it turns out the truth might be more complicated and it may have been her husbands employer triggering the search, not the FBI? https://www.darkreading.com/cyber-risk/pressure-cooker-flap-...