Have you ever
WONDERED, how
a ship floats? or
How a hydrometer works?
How you swim?
Or what makes babies float in their wombs.
have a QUESTIONED why gases in fizzy drinks go up and not down?  or
How Poached eggs are made the way they do?
What about the principle behind a life jacket for hot-air balloon?
it's all because of
Buoyancy
Now, let's take a beaker filled with an arbitrary liquid.
Now we know the pressure depends upon
the depth of the liquid.
So, let's place an ice cube in the liquid.
Now, what would be the net force acting on the cube?
At depth along the sides of the cube, the pressure is going to be EQUAL.
And therefore they cancel each other out!
But we know the pressure acting upward   is going to be higher than pressure acting downwards
The net force equals to SA cube(a unit) x density x gravity
What is Dcube (actually, I meant to say- SA cube)?
It is the volume of the ice cube, right?
Plus, it is the volume of liquid displaced!
Therefore, the net force equals to the weight of the liquid displaced!
Cool right?
Actually the Archimedes principle
Now the object displaces an amount of water equal to its own weight, it floats.
But if the object is denser than the liquid, it sinks.
So, how does a ship keep afloat?
See, a steel shook as much heavier in mass in water.
Therefore. The density of the ship is manipulated by increasing the volume of the ship
FUN FACT:- In fluids, the weight of an object reduces.
As apparent weight is the difference between actual weight and upthrust.
So, It's always a great idea weigh yourself under water!!! :-)
