For demonstration only, do not attempt.
Nitrogen.
It's the most abundant gas in the air that we breathe.
And if you didn't already know liquid nitrogen is very cold.
About 320 degrees below zero fahrenheit cold.
And today I'm going to see.
if I can get a model rocket engine to burn while submerged in liquid nitrogen.
And I'm not really worried about an explosion.
Or fire.
Or anything like that.
Simply because nitrogen is a very inert gas.
But I am very curious to see what's going to happen.
When we have that cold liquid nitrogen.
Come in contact with the rocket engine.
If it actually Burns.
Now the way that I'm going to set this up as pretty much identical.
To the way that I set up the previous.
Burning a model rocket engine videos.
The only difference is.
This is a 2.5 gallon aquarium.
And I think we're going to have a lot of gas expansion that's happening.
Waterproof and liquid nitrogen proof.
Maybe.
Give it a second to equalize.
Look at that boil.
Oh wow that looks awesome.
Alright before they gets to out of control.
I'm going to just ignite it.
Wow it
smells like sulfur.
I'm thinking because I lit it up.
Before the temperature equalised.
It didn't blow the tank open like before.
With the next aquarium.
The insulated Aquarium.
I think we're going to have a much different result simply because.
I'm going to wait.
The temperature is going to equalize completely.
And then we're going to light it.
Here goes our insulated tank.
This time I'm going to burn the engine in the insulated tank.
I'm going to hook up the vacuum pump.
Pull a vacuum.
So take out all of the air.
In the space in between the two tanks.
But the new rocket engine in there.
In this case since we don't have any air and between the two tanks.
That's going to act as pretty much an insulator.
Hopefully we'll get just the burn with the liquid nitrogen.
Then we'll have complete chaos.
Woah what's happening there.
Oh yeah.
Oh it cracked that tank.
Godspeed model rocket engine in liquid nitrogen.
Interesting it didn't even blow up the tank it only blew up the little tank.
Wow now we have a big tank and a little tank full of liquid nitrogen.
Very interesting.
Looks like it burned but it didn't explode.
I mean I kind of exploded.
I wanted complete chaos but I didn't get it.
Even though this was the insulated tank.
We still had some Frost and it was kind of obstructed.
And that's our rocket engine.
So let me pull that out.
And give you a closer look.
at are frozen model rocket.
Yeah this sucker is ice cold.
Look at that.
I can barely hold it, It's so cold.
And interestingly enough that nozzle is still intact.
Now while I look pretty cool.
I really couldn't see the engine burning.
Because the glass frosted up so quickly.
It looks like the liquid nitrogen is just too cold.
So what I'm going to do this time.
I'm going to mount this insulated glass pack.
To the last tank that I have left.
And my idea behind this.
Is that this should give us a nice insulated viewing window.
So we can see exactly what's going on.
When the rocket engine Burns in liquid nitrogen.
This time I'm going to leave the rocket engine
in the liquid nitrogen for a couple minutes.
Giving the rocket engine a chance.
To reach the same temperature as the liquid nitrogen.
And then I am going to ignite it.
Surprisingly that experiment.
Led to some very interesting results.
The first thing that I noticed.
Is that the whole rocket engine burned in like 3 seconds flat.
And this reminded me a lot. of when I burned the model rocket engine in the vacuum.
It behaved very similar.
The whole rocket engine burned in like 3 seconds.
And this one did the same thing.
I don't know why that is.
Maybe you can tell me.
But that's what happened.
Second thing that I noticed is.
This whole casing just cracked.
I thought this was just kind of like some soot or dirt.
But upon further inspection.
The thing is actually cracked.
So I don't know if that was from the pressure.
Because the casing was so cold.
Or what happened there.
The third thing that happened that I found very interesting.
And I also learned something myself.
Is how effective double pane glass really is.
The liquid nitrogen is more than 300 degrees below zero.
And we didn't even have fog on the outside pane.
Of that double pane glass pack.
That shows me how well.
That double pane glass insulates.
Because you have almost a 300 degree temperature difference.
From the outside pane to the inside pane.
And we didn't even get any fog.
This wasn't really what I wanted.
But I think it was cool.
I think it showed us that a rocket engine definitely Burns in liquid nitrogen.