 
 
Just like saints praying in himalayas...
Have you seen a machine which makes fog?
If you've not seen, please join. We've the thing to do.
Friends, so
let me keep it here.
Hi Friends, Welcome to M4 Tech.
Thought of beginning with an official intro.
I'll explain for the people who don't know what's inside the box.
We've bought dry ice from Ernakulam.
See,
a 10 KG packet.
Bought it as a single piece.
We bought this from a factory.
This costs approx 30 rupees
per kg.
It won't be available in normal shops.
There is a covering again.
They gave it as a single piece (10kg).
It has broken. When we opened, it started to evaporate.
 
This is dry ice.
The specialty of dry ice is,
normal ice is made by freezing water
 
but dry ice is made by cooling
Carbon Dioxide.
You might've a doubt why am I wearing gloves?
If you touch it with naked hands, there is chance of getting burns.
The temperature is
-78.5°C
 
 
We can bare that much cold, so using the gloves.
If I hold in bare hands,
it will cause burns.
The next specialty of dry ice is
as you see it doesn't melt as water.
It directly evaporates as gas.
But normal ice is not like that,
it melts into water.
 
But this never changes to water.
It turns from solid to gas state.
We're going to do an experiment now.
I'm pouring hot water in a beaker.
Will fill half the beaker.
Now we're gonna break dry ice into it.
 
I'm breaking off a piece of dry ice.
Use gloves while handling dry ice.
Safety precautions are important.
So, we've
broken few small pieces.
We can break it again if needed.
I've broken it.
Now we can
directly put it into the water.
Let's see what happens.
Wow!
See!
The Carbon Dioxide immediately
leaves the ice form
and goes out as gas
is what you're seeing.
This Carbon Dioxide will be very cold.
 
Since it is cold, it acts like a fog.
The smoke consists of water droplets that are trapped inside
the carbon dioxide gas and eventually flow out.
 
See it feels like a fog.
You can see that from dry ice,
there's lot of bubbles coming out.
That is nothing but
the Carbon Dioxide in dry ice
changes from solid to gas state.
We can see it flows downwards.
Since it is a cold air,
the density is less for it.
The experiment which we did now,
will be done in this vessel.
Let's see how it will be in this.
We've already prepared
hot water.
We can pour in it.
We're gonna break dry ice into small pieces.
 
Into tiny pieces.
There's a vibration.
In 10 Kgs, we can break at least 5-6 kgs
for this.
If we break and put it in water,
the reaction will be fast.
 
If we break it to small pieces,
it'll be good.
So to get a final result,
we're ready and set.
We've broke it into small pieces.
We can see what happens when we put it in hot water.
 
Oh my god!
From here we can see clearly.
If we come this side...
no chance...
 
See!
We're going to do a
final experiment now.
We can put it in hot water.
I'm gonna put it in now, see this!
 
 
Have you seen fog?
This is the fog effect.
 
Doesn't it look like I'm sitting in snow.
Who are the people who sits and prays?
Saints right? Doesn't it feel like saints praying in Himalayas?
 
We can't see anything on the ground.
If we sit here,
 
it's like saints praying in snow region.
 
That's the feel.
See how it comes.
Lie down there.
 
Just like Lord Shiva in Kailasa!
It's good right?
We can actually see it flowing in the ground.
It doesn't rise up.
Look here.
It's full of fog here.
 
The left over dry ice we have,
we're completely putting it in.
It'll be good to see now since it is night time.
Ready!
 
No way!
 
Just like fog/snow in Himalayas.
We can't see anything around here.
If we see the lights on the steps,
it looks so different.
 
Looks like fog is flowing.
If I sit here...
 
It's not rising up, stays low.
Hope you all liked today's video.
The theory in today's video is
the Sublimation process.
We saw the dry ice.
It doesn't melt into water but changes from solid to
gas state. It happens because of the
sublimation process.
This is a Christmas season and
we can use this idea in many ways.
It's not so costly just 30 rupees per kg.
Hope you liked today's video.
Like or Dislike.
Comment your feedback.
To see more exciting videos like this, subscribe M4 Tech.
 
We'll meet with some interesting videos. With cameraman Praveen,
it's me Geo Joseph signing out!
 
 
