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How Silencers Work 🔇
Hey…who are you?
That’s sexy.
Lol.
He really thought a knife would win…
But damn, that gun was quiet.
So how’s a “silencer” actually work?
HOW A SILENCER WORKS
Let’s start with the problem.
We got a gun.
Guns are loud.
Why?
Well, look at the bullet.
Ya, it freakin’ explodes.
How?
Durd, grab a hammer.
Now hit it.
Gnarly…but not super effective.
So let’s put it in a barrel.
Congrats.
You made a gun.
The only problem is the gun’s loud as hell.
Why?
2 reasons:
Sonic boom
Gas pressure
The sonic boom comes from the bullet going fast – like 760+ mph fast.
Aka faster than sound.
Which creates a shockwave behind the bullet.
But we can’t stop that – unless we use heavier, subsonic bullets.
LAME.
So instead, let’s focus on the gas.
See the high pressure gas from the barrel expands rapidly when it exits the barrel – aka it explodes.
It’s like popping a balloon.
But…
We can quiet the balloon if we let the air out slowly.
So let’s do the same with our gun.
How?
Well, let’s get a lil mathy.
Here’s the ideal gas law:
Scary right?
It’s okay…here’s what it means:
Translation:
High pressure = lotta gas + fast gas + tiny space
Now let’s look at the gun…
The perfect storm.
But let’s use our math to make the perfect silencer – in 3 steps.
How to Make The Perfect Silencer
Step 1: Bigger space
Lol.
Before we release the gas, we want it to fill as much space as possible.
But it’s still moving too fast…
Step 2: Slower Speed
How do we slow the gas down?
A maze.
The gas smashes into the walls of the metal maze.
Each time, it absorbs their energy.
Meaning slower & cooler gas.
(Which is why silencers are blazing hot after shooting.)
Step 3: Smaller size
Durd Bond actually needs to run around with this thing.
So let’s make it small.
And bang.
There’s your silencer.
Except, I should say suppressor…because it’s not silent.
The gunshot only drops from 150dB to 120dB.
But it’s a log scale – meaning it’s 1,000x less intense.
Basically like wearing ear muffs.
Love,
Durd
P.S. If you ever see Shooter, he uses a bottle “silencer.” It’s the same volume idea. Make the gas expand before it leaves the gun.
Stay Cute,
Dylan, Henry & Reece 🌈
P.S if you enjoyed this lesson, forward it to a friend.
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