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Based on 66"x12" x13", you'd need 380lbs to keep that thing under water.
So like 3 textbooks?
If it's filled with stuff then it's not filled with air. So it would be less buoyant. But yeah, probably harder to sink than people would guess
Bouyancy is based on how much water is displaced, not amount of air inside the container. 66x12x13=10,296 cubic inches. Fresh water density is about 0.0361 lb/in^3 so that case has to displace at least 372 lb to sink.
Metric would be better for this but we're talking about a stinger missile here.
I read your comment, then went to make a joke response to someone else about placing a vacuum chamber inside the case to reduce its buoyancy.
This set off a several minute long internet hunt where I learned about Archimedes Principle, which you clearly describe. It turns out the only vacuum here is the one in my head.
To wit: If placed inside the case, my empty head would reduce the buoyancy, but only by its own weight.
A Pyrrhic victory.
My boy Archie figured some stuff out a long time ago! Unfortunately he didn't get the story straight about phlogiston
@bisby@lemmy.world Absolutely, and the stuff you've filled it with should amount to 380 lbs...
What does the case weigh empty?
Who needs healthcare when MIC surplus waste can store your belongings for slightly cheaper...
What I want to know is how on earth you would find it again if you did this. There's no guarantee that it'll be in the same spot, right? It can get buried or pushed way downstream or both. I'd believe it if it was like a retention pond or something, but a river?
You’d probably tie a rope to it, very securely, then secure the other end of the rope to a tree or rock or something on the river bank/shore, as low to the ground as possible, then cover the visible section of rope with mud/sticks/branches etc.
Still no guarantee it wouldn’t break free or be discovered by someone else though
I imagine you tie a rope to it and tie the rope to a tree or something?
Rather think inside of the box in this case
Think inside the case.
Why not just take your shit with you at that point?
Yeah, if you've got the stinger case all packed up, is it really that big a deal to just toss it in the trunk? Maybe they spent the time traveling though, in which case I get it more.
Pic doesn't show size well, think small coffin. Only way you're tossing that bad boy in the trunk is if you drive a 1970s luxo-barge
Depends on how they're getting home, right? If they planned to take a cheap flight with nothing but hand luggage, there's no way they're getting that thing on the plane without paying extra. And if they're getting a ride from someone else, they may not have the trunk space for that either.
Are you saying this isn't a much cooler story? Fun people will genuinely do something less optimal for the chance to be more entertaining, and I think they're probably right.
Can anybody explain what is "university summer storage"
From context I presume that at some universities you may not return to the same dorm room, and so need to pack up your stuff and move out at the end of the school year and then back in later. Universities or nearby businesses must take advantage of this by renting storage space to students.
I never lived on or near campus so I don't have any first hand knowledge.
For the university to hold onto your stuff while you’re away for summer break
I guess we are talking about the US? That means students rent their dorms not during the breaks, and go back home. Are they forced to go into dorms or can they also just rent an apartment?
This is typical of US. Most dorms don't allow staying over breaks. It's almost impossible to find month to month or short term leasing to even get into an apartment for breaks, so you most likely find a couch to crash on or move back home. It's a massive pain in the ass
Universities usually require freshmen/sophomores to live on campus.
this post was submitted on 04 Feb 2026
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