this post was submitted on 23 May 2025
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[–] Archangel1313@lemm.ee 85 points 1 day ago (23 children)

Also weird how giant steel tankers float on the ocean. Especially when they're weighed down by all that cargo. It's practically unbelievable. I throw a tiny rock in the ocean, and it sinks...but not those giant steel boats? /s

[–] ByteJunk@lemmy.world 17 points 1 day ago (17 children)

Well... When you put one of those huge tankers in the water, it will move a LOT of water out of the way.

As long as the tanker weights less than the weight of all that water it displaced, it will float.

As you keep loading up the tanker with more cargo, it will go deeper into the water right? But this means that it is pushing more water out of the way (the water that used to be where the boat now is), which balances out the weight because that creates more buoyancy.

A rock, on the other hand, is heavier than the water that it displaces, so it sinks like a tanker whose front fell off.

[–] dwindling7373@feddit.it 8 points 1 day ago (1 children)

Metal is heavier than water. Virtually every containber is fille to the brim with products, now I don't know you but most everything we buy is heavier than water.

It's clear they have some kind of extra propulsion in those, most likely magnetic anti gravitation.

[–] ByteJunk@lemmy.world 5 points 1 day ago

The bane of shipping is that a lot of money goes to shipping air around :)

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