“Oh my goodness”
“Look at this cloud”.
“Jump in”.
It is twice as cold
as the lowest temperature
recorded on Earth.
It's colorless.
It's tasteless.
You can't smell it.
And there is no doubt
that it can kill you
in seconds.
So why would someone
put liquid nitrogen
in a swimming pool?
And can you imagine
falling into it?
People have,
so keep watching
if you want to survive this.
Liquid nitrogen
is a cryogenic liquid.
They're liquefied gases
that can only stay liquid
at extremely low temperatures.
Liquid nitrogen boils
at -196 °C (-320 °F).
That makes it very useful
for preserving sperm,
and animals' genetic samples.
Doctors also use it
in cryotherapy
to kill and remove abnormal skin tissue,
such as warts and skin tags.
And some people's dead bodies
have been frozen in liquid nitrogen,
hopefully to be revived in the future.
But since this tissue killer,
is available to the public,
people have died
using it for fun.
So this is when we remind you,
please don't try this at home.
Surprisingly, you won’t get
frostbitten and frozen immediately,
thanks to the Leidenfrost Effect.
When a liquid touches a heated surface
that's much hotter
than the liquid's boiling point,
it forms a thin layer of vapor
that separates the liquid
from the hot surface.
Liquid nitrogen's boiling point
-196 °C (-320 °F,)
your skin is much warmer than that.
The Leidenfrost Effect
will protect you for a couple of seconds,
but you have to move on to the next step
if you want to survive.
After a couple of seconds,
the liquid nitrogen concentration
will lower your skin's temperature,
and the vapor buffer will disappear.
Severe frostbite will kill your cells
and destroy your tissue,
which can cause gangrene.
You might even need to have
your limbs removed.
And if you wait a few more seconds,
it will freeze all the water in your body.
All your tissues will be frozen solid.
Let's hope you can get out of the pool
in just a second.
The air you breathe
is 78% nitrogen.
But when liquid nitrogen
hits the atmosphere,
it starts to boil violently.
Its vapor expands so quickly
that it can displace oxygen from the air.
So you'll pass out
before you even notice it
because the air will still be breathable.
And If you're alone
and you faint in a pool of liquid nitrogen,
it will kill you.
In 2013,
some party organizers
tried to impress their guests
at a Mexican resort.
They dumped four cans
of liquid nitrogen in the hotel's pool
to create a foggy effect.
A few minutes later,
eight people passed out,
and one man fell into a coma.
"Help me out"
So if you're using liquid nitrogen,
you must monitor the oxygen level
to stay healthy and conscious.
If liquid nitrogen vaporizes violently,
and you're in a confined space,
or one that's not well ventilated,
it doesn't just displace oxygen
from the air.
It will also cause
a severe pressure build-up.
The pressure can cause an explosion.
So if you want to survive,
make sure you are in an open space.
Although liquid nitrogen is not toxic,
its extremely low temperature
can kill your body’s internal tissues.
Despite that,
some people are using liquid nitrogen
to create this foggy effect
in drinks and foods.
But you must remember
that your body cannot cope
with this extreme cold.
In 2012,
an 18-year-old girl in the UK
had part of her stomach removed
after drinking a fancy cocktail
prepared with liquid nitrogen.
So, close your mouth,
and don’t let a single drop
enter your body.
You survived this crazy cold.
Now you need to warm up.
How about some sun?
Yes, that will help.
But wait,
what is that?
Do you think you can survive
a solar storm?