Name: Why does Water Dance on a Hot Pan? | #aumsum
Uploaded: 2019-04-08T08:36:29.000Z
Duration: 6 min 11 s
Description: Water boils and starts evaporating at 100 degrees Celsius. \nWhen the pan\'s temperature crosses 200 degrees Celsius, the lower part of a water droplet turns into...

Now, let's guess the title of my next video.

Dogs' noses have more than 200 million sense receptors.

So, they have an extraordinary smelling ability.

Wirte your guess in the comments section below.

It's so hot that the lower part of the water
droplet immediately vaporizes.

An insulating vapor pocket is created beneath the droplet.

The vapor molecules are trying to escape from it.

They are pushing the droplet around, making it dance.

You must be thinking that anybody who cannot swim will obviously drown.

Whether it is a swimming pool or the dead sea.

When an object is partly or wholly immersed in a fluid, an upward force is exerted by the fluid on that object.

This tendency of the fluid to exert an upward force on the object is called buoyancy or upthrust.

This upward force is called buoyant force.

Place a piece of wood in water and push it
downwards.

It seems like something is pushing the piece of wood upwards, right?

Water exerts an upward force on the wood.

That is why the wood is getting pushed upwards.

This force is called buoyant force and the tendency of water to exert that buoyant force is called buoyancy.

Dead sea has a huge amount of salt dissolved in it as compared to any other sea or ocean.

The presence of this salt increases density
of water present in the dead sea.

Higher density leads to greater buoyant force.

It exerts enough amount of buoyant force to make us float on it.

So, if we can float on the dead sea, we are
definitely not going to drown in it.

Our kidneys filter blood by removing waste
from it in the form of urine.

Urine consists of water, urea, uric acid and
ions like calcium, sodium, oxalate and potassium.

However, when some of these constituents such as uric acid, calcium and oxalate ions increase in the urine.

They bond together forming kidney stones or renal calculi.

One of the most common kidney stones is calcium oxalate.

Hence, they pass unnoticed through the urinary tract.

However, sometimes these stones become so big that they start to scratch walls of the urinary tract.

May block the path of the urine, thus causing immense pain.

Besides this, big ears of the elephants also
help it to regulate its body temperature.

But how can ears help to regulate body temperature?

In living beings like elephants, blood supplies heat to all parts of the body.

Thus helping it to maintain the body temperature.

However, due to metabolic activities or hot
climate, sometimes heat in the blood can increase.

Thus increasing the body temperature of the elephant.

Now an elephant's big ears are filled with blood vessels which are very close to the surface of the skin.

Hence, when blood having more amount of heat flows through the ears of the elephant.

The heat from the blood escapes into the atmosphere, cooling the blood and in turn cooling the elephant.

Obviously, becasue whenever I eat spicy food, my mouth seems to be on fire.

This is because spicy food generally contains chili peppers.

Chili peppers have a chemical called capsaicin.

When capsaicin comes in contact with our tongue.

It activates the heat sensing receptors instead of our taste buds.

As a result, our brain thinks that our mouth
is on fire.

Capsaicin present in spicy food is not necessarily bad for everybody.

Only those people who have a low tolerance level.

Or don't have a habit of eating spicy food can experience some problems like burning mouth.

Irritation of the stomach lining, heartburn, etc.