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: 

  1. Sonic boom

  2. 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.

If you’re that sexy friend, subscribe here.