Thread 105887772

How the fuck do they float?

>>105887772 (OP)
See the nose? It smells succesful goyim

>>105887772 (OP)
>> /o/

lower density than water.
air is crazy light and the hull is full of it. just like how helium balloon floats even though the rubber is way wayyy denser than air

learn basic fucking physics /g/

very carefully

>>105887772 (OP)
They're covered in oil.

Isn't classical mechanics a part of basically every engineering curriculum, even CS?

>>105888713
the part of the ship that is below the surface of the water must have an overall density less than the density of water and the entire ship will float. The inside of the ship is obviously not made out of metal entirely. It has a lot of empty space. Some ships come with "lubricant" on the bottom to pump out air to reduce friction with water, saving fuel.

>>105887772 (OP)
You should see the Great Lakes freighters, those things look ridiculous

>>105887772 (OP)
>lay on back in pool of water
>float
HOLY FUCK HUMANS ARE MAGIC

>>105887772 (OP)
They don't.

>>105889626
SEX with this CREATURE

>>105888713
>>105889150

It's not a density thing, it is a volume and mass. Whether an object floats or sinks in a given medium, like water, depends on whether the mass of the volume of the medium that is displaced by the object weights more, equal to, or less than the weight of the object.

Hot air balloons can float on air because the weight of the air they displace weighs less than the warmer air within the balloon. Same deal if you're talking about blimps. Total weight of the helium used to keep the blimp inflated + the entire blimp itself weighs less than the air it displaces.

Density can be used to calculate the required displacement for buoyancy, but it is not needed. You can just weigh a cubic foot of water, and that tells you all you need to know about how large the boat would have to be to float.

That's why boats are rated in "tons", which refers to the weight of the water they displace and not the actual weight of the vessel itself.

>>105889711
>It's not a density thing, it is a volume and mass.
Density is mass divided by volume.

>>105887772 (OP)
Water is heavy.

>>105889711
>That's why boats are rated in "tons", which refers to the weight of the water they displace and not the actual weight of the vessel itself.
You want to take a second and think about what you just said?

>>105889711
> when you need to use chatgpt because you failed high school
unironically sad.

>>105889888
ship tonnage is weird and leads to a lot of weird thoughts. but ship "tonnage" is more a function of volume than weight because the weight of water is not the same as steel/aluminum

>>105889939
also ive been drinking please delete this im having an alchol induced stroke

Some ships even sink on purpose to load heavy floating things on their decks.

They can load oil rigs, other ships, yachts, cranes, you name it.

>>105889939
I want you to think about adding weight to something floating and watching it lower in the water. Then try and figure out how much water was displayed by the weight added and the ratio between the weight and water displaced.

FUCKING VESSELS
HOW DO THEY FLOAT

>>105890009
i already admitted i was drinking and dont really understand botes anyway. i was confused because usually people take "displacement" to mean how generally big a boat is rather than how heavy it is, and the generally not-useful nature of "displacement" for vessels compared to draught and actual size. im used to talking about botes in a military context where displacement isnt "not important" but isnt a useful signifier of actual size or armament

>>105890043
Displacement is weight if it floats. How much displacement or how heavy a vessel can be before it sinks is set by the shape. Outside of ships that are built to submerge or things like solid objects denser than water.

Within a margin of error the weight of a floating ship is exactly equal to the weight of the volume of water displaced.

I work in shipping and we usually deal with deadweight (i.e. the weight of the cargo)
Deadweight plus lightweight (the weight of the ship) = total displacement

There are other things like net tonnage and gross tonnage but these are just numbers used by pencil pushers, like ports charging fees based on these. No one cares.

Ships will have different drafts depending on the water. Freshwater or tropical water is not the same.

>>105887772 (OP)
see those bars going across the top? giant magnets that pull the boat up

>>105890132
true but again i am COPING and REGRETTIING, CONFESSING, BEGGING PARDON because usually when i talk about botes with people and "displacement" comes up it's a nonsense red herring value because of people conflating displacement with actual volume (the very same mistake i made; i have been fucked in the head by shitposts; mind wounds will not heal)

>>105890205
NP. Has some bote sluts.

>>105890210
not only am I gay but even then I am only sexually excited by mid-range(in terms of ability) weapons systems

>>105887772 (OP)
Displace water with air and you get a floaty thing.

>>105890024
its been so long...

>>105889059
>>105888713
r/woosh