So now that I'm a dad and I know how to engineer

I decided to once again level up my water fighting capabilities with this.

the Guinness World record holding

Largest water gun ever at 7 feet long. As a follow-up, of course, to my world record largest nerf gun

But, she doesn't just look good.

So I'm going to show you how we made it how she stacks up against the original Super Soaker

and then we'll talk about the science behind how it worked but

First let's just take a moment to appreciate the destructive power of a stream of water traveling at 272 miles per hour

oh

Watermelons are great

But I wanted to see how she would fare in a real water fight in addition to running some further tests before we into those

Let's talk about how we made it and have it work

Together with my buddy Bob and his glorious beard we created a skeleton for the gun in fact

I won't show it here

but if you want all the gory details

On how to construct a large scale replica like this he uploaded a full video on his awesome YouTube Channel called I like to make

Stuff I'll put a link in the video description and in the end after some pVa foam and a paint job

We ended up here. Let's take a look under the hood to see the design

I arrived at with my buddy Ken the first thing

You should notice is that most of the math is down here in the handle not up here

That's because having a low center of mass is really helpful for stability and maneuverability

For something really large like this all the components you see here are just a fancier version of all the components that make up this

Gun it operates on the exact same principle, so let's start by talking about how this one works and to do that

I figure

We might as well ask the actual original inventor of the super Soaker one of my personal

engineering heroes Lonnie Johnson of course one of my first questions to him was how he even came up with this idea because I got

The idea I can eat that he has a boss mentor working on the Galileo project at times. I would do it

in a hole in the bathroom he

developed a sheet

waters working for free on that make acknowledgment buy into thinking that

mystery water from the bathroom

And I saw how powerful it was and how as I would I felt pressure

As I talked North longing she showed me the very first prototype

He ever built of the gun we talked about some of the clever design elements for example this tank here that holds the water

Doubled as the pressure container so each time you pump you were forcing more and more air into this spot

Which makes it more and more crowded with air Molecules which increases the pressure and when you pull the trigger?

There is pushing down on the water

So hard the only place can go is through this tube and out the gun and so this is why this Tube is

intentionally bent down like this

because no matter which way you tilt the gun it's always going to be below the water line and therefore water will come out and

Not air and so now in our case instead of pumping we fill this tank up with

High-pressure nitrogen gas and then this tank is filled with about two gallons of water and just like a super soldier and of the Tube

that runs all the way down and is open at the bottom so then this gas is a

Really high pressure and it wants to get out so when you pull the trigger

And open the flow it pushes down on the top of the water which forces it up this Tube and out at

272 miles per hour and the Trigger is just this ball valve Joint here

but I thought it would be lame if every time you wanted to fire you had to turn some the handle so we have a

Pneumatic piston here, that's also powered by the nitrogen

And then we have a solenoid that's connected to some double-a batteries back there for power and so when you push this button it opens

the ball valve and allows water to flow through

Until I release the button I'll put a link to the cad files you made along with a build list of all the components

We used in the video description if you want to make something similar, so one final cool feature is we have this cover here

That's held on with Rare-Earth magnet, so after you've shot a bunch and need to refill the water in the gap

You can just easily access the fill valves through this window here and now back to the gratuitous violence

oh

It's a double rainbow all the way for some context on the power of this gun the original Super Soaker was pressurized to 40 PSI

And the pressure from the hose of your house is just a little more than around 50 PSI the firetruck hose

comes in at around six times that 300 PSI and this beast is eight times the pressure of a firetruck at

2400 PSI which in hindsight is probably overkill?

One final really cool feature of the gun is you can swap out the nozzle depending on what you're shooting

So this nozzle has a really small diameter opening which leads to a high stream velocity, but lower overall water out

So it's good for cutting or puncturing stuff then this nozzle is basically wide open at a quarter-inch so it's a little lower

Velocity but it's the maximum water output, so it's good for getting things drenched fast or breaking things with Force

So now with the gun fully tested

I want to see how we do in an actual water fight, so we got together for a party was a family friend

But to make things fair we took turns taking gun, but of course I got first

So it worked awesome, and I completely destroyed them until I ran out of water

took us about six months to build this super soaker and it wouldn't have been possible without the support of the awesome folks at

23andme I just got my results back, and I will share them with you in just a second if you've never heard of them

They send you this box and then you spit in this Tube and then you put it back in the mail

And then they analyze the dnA in your perm of those hence the name 23 because humans have 23 pairs of chromosomes

And then they tell you all sorts of really interesting stuff about you, so for example in my case. I learned I am

45% from Britain and Ireland and amazingly, I'm 3% Jewish shalom I also learned

I am more neanderthal than 96% of all 23andme customers

They also predict some of your physical traits based on your dna. Which was astonishingly accurate except this one was a little suspect

Anyways, I thought it was so cool

I got them as gifts for everyone in my family

So if you want to learn more about what 23andme does or even better if you want to learn what your dna says about you?

Or your friends and family you use the link in the description or go to 23m. Eecom Slash mark Rover. Thanks for watching

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