Get an exclusive Surfshark deal! Enter promo code BACKYARD for an extra 3 months free at surfshark.deals/backyard How would you make a Cotton Candy Gun?

I love how this man either makes things that seem like they would be fun toys, or makes things that are obviously weapons designed for war crimes

I happen to have extremely specific expertise on this as R&D chemist at a candy factory, so here's a recipe for the ideal candy gun syrup: Add sugar, corn syrup, and water in ratio 60:30:10, melt, mix together, and then boil it down without stirring until it hits 150*C, heavy bottom pot is best. Once it hits 150*C, mix in 3% by weight glycerin, then go do your shenanigans with it. It will be way less viscous, won't make the icicles, won't burn, and turn into way more and longer strings. The reason for doing these things is classified/arcane knowledge. Oh also be sure to empty the pot of any syrup when you're done. If you let a thick layer solidify in there it is *hell* getting it out.

the plants across the garage have definitely suffered a lot of abuse

who knew making a cotton candy gun was rocket science

I gotta figure out how to make Mark Rober to fire me

Ok props for the awesome lady at the fair who when asked to open a cotton candy vending machine was just like "yeah sure"

I love how this man takes one of the least threatening sugary treats and makes it into a terrifying weapon.

One time I was at a mall and I saw that cotton candy robot and it was making weird looking flowers and just dumping them in the back of itself over and over again. We decided it would probably start a fire if too much got in there so we took one and it seemed to stop auto firing cotton candy 😂

Dude, you don't have to rush your videos. Every second is solid gold and I wouldn't mind at all if you made them a little longer. This was too cool.

I was surprised after the pouring worked so well that you didn't build a gravity fed tank that just poured the sugar infront of the nozel when you opened a valve. Though the cotten candy cannon with the fire extinguisher was my personal favourite. Like a party popper but with molten sugar and cotten candy instead of confetti 😅

after seeing the leaf blower work i had an idea ideal gas law says going from high pressure to low pressure results in cooling. if you put short to wide nozzle after the compressor but before the hot sugar, it should keep the air warm enough to keep the sugar from turning solid without loosing too much kinetic throwing energy. Also your sugar injection system should be on the top so the sugar falls into the air stream. Instead of venturi or internal pressure, use a physical piston and gasket compression instead. This keeps air from escaping the cylinder instead of the more viscus sugar. work on different designs for the injection plate, as the civ seemed to have success with lots of nearby holes in an array rather than a single row of small holes you seem to be designing towards. Doing it this way also should let you put a "butt fusion" heater assembly mounted to the gun to heat the sugar while in use, instead of rushing to mount a hot sugar to the gun before use

I just wanna point out, 8:25 he is wearing gloves. I work at a steel foundry pouring 2800 degree steel and we use the same gloves lol. (For working after the steel is poured, when we are pouring it we put on the big silver suits).

Infusing sugar with Prime and spraying it all over the grass? You're practically inviting ants to get superpowers. Some unfortunate soul will end up being bitten and transformed into a *real* Antman. Not just some guy that can change size, but someone with a super-strong exoskeleton complete with six legs and sudden cravings for picnic leftovers.

Only a backyard scientist could weaponize projectile cotton candy

This man casually said "I'm gonna use my jet engine i made last year" this guy's one bad day away from being a super villain😂

Would love to see a longer version with all those other things that you tried, love the content

Honestly I feel like the biggest achievement you have done here is fulfilled an ants life long dream your back yard is going to have such a thriving colony after this experiment.

2:47 "Wow, You don't know how many times it took for me to get that right" That was great!

on 5:30 he literally made a edible web shooter😂

Bro is single handedly feeding all the ants in his neighborhood

You are so right about molten sugar being like napalm. It is so much hotter than you think it's going to be and you can get burned so quickly. That's why I don't think making candy.

This reminds me of a couple decades ago when I discovered you could shoot hot glue from a hot glue gun into an air compressor stream and send glue spider webs everywhere. :)

5:42 Allen Pan is far more than Mark Rober's assistant!

So much effort here, love to see it.

A suggestion: could you heat the nozzle, whatever it would be, with a coil, using induction ? And by adjusting the parameters keep the nozzle(s) at the sugar melting temp ?

3:35 "I didn't make cotton candy, I made an afterburner" best thing I've heard in a while

Those experiments you did at the end, and shown only like two seconds of each, all seemed pretty cool! :D

I used to work at a party supply store and we had cotton candy machines for rent and I got sent to a couple local events with the cotton candy machines and popcorn machines and I guarantee you the kids got more excited about someone making the cotton candy in front of them rather than watching a machine do it

6:40 congrats! you made an annular booster! its the next step in better carburation over a down leg booster which is kind of similar to you just pouring the molten sugar into the air stream really cool how you gout to the same spot.

02:39 Unfortunate bystander chosen for execution for a fun sugar shooting machine 😀.

Sugestion from The Ionizer - Spinning the surgar will allow it to move only when it’s melted keeping it from burning. If you have a cone to bring the liquid to a center and also have some channels to flow . The idea is to fling it out in as narrow and fine as posible to give you thread. You use nozzles at that size will clog. Better experiment would love to help you with is how about a different type of heater. I can explain how a machine works and how useing a wireless way to heat a spinning chamber can work better and be better controled. works can have huge improvements.

Instead of melting all the sugar at once, I’d use some sort of heating element to melt the sugar just before it comes out of the tube, and then blast it with air to cool it down again

The backyard scientist once again emerges from his florida abode. This is freaking awesome!

"You won't hear anything. Hopefully you'll just see cotton candy." Okay do I at least get a blindfold.

1:48 “Look at that! It’s twerking! It’s twerking! It’s twerking, no!” -TheBackyardScientist

man, a new backyardscientist video feels like christmas because its always a GAD DAMN GIFT

9:10 Even stickier that those times about 4 years ago, when you made human-sized glue traps?

4:51 Hey, it's my giant keyboard!

He worked so hard on prototyping this and then just breezed through it like it was no big deal. ❤

He always makes me laugh eaven when I’m felling bad or tired love you kevin

A tank with a gravity feed would and a decent valve probably work just as well as just pouring it into the stream. And it would give you the added advatages of being able to use both hands for holding the device, and have a perfectly controllable flow of sugar. Basically; instead of trying to fight gravity, use it.

The Open Sauce line-up looks amazing. It's great to see people like Evan & Katelyn attending. I really wish I didn't live so far away.

4:26 lmao

I like how it basically turned into one of those spiderweb guns for movie sets.

rocket powered cotton candy is possibly the greatest idea of all time

The man, the myth, the legend.

If you want an ant infestation in your backyard, this is how you do it.

this video is a good example of how a lot of the time the simplest solution is the most effective

I made a tiny one for blowing “spider webs” onto a display before, but definitely nothing to this scale, this is awesome. I used the more brute force method of flame heating the connection X-p didnt last long, but made a cool diorama (using weaker air from a compressed air can may have also helped)

I would suggest trying to build something more closely related to a large airbrush, except rather than attaching the cup directly to the nozzle, you suspend the cup above and out in front of the nozzle on a bracket Inside the cup would be one or more heating elements to heat the sugar for you (Instead of heating it beforehand and having to act quickly), with a valve to open and close it, letting gravity do all the work.

This is the same process like making rockwool. The key is air speed that is actually pretty "sedate" and and the molten sugar needs time to "pre cool" a bit before hitting the air stream. This way you create skin layer that then gets stretched out. This is essentially what you did at the end of the video.

every video you do is gold

i just need to say that this notification showed up on my phone as "I made a Giant C" and my brain did not guess that word was "cotton"

2:04 a semen demon

YOUR MOM IS MY SCIENCE TEACHER

“This is a rocket engine I made (for a video last year)” is not something anyone can say except this man

4:42 wait a minute...CODE BULLET ?!

The sweetest and most dangerous science experiment I've ever seen xD

well if you think of something like a paint ball gun, its all hopper fed. you did make a solution that went Infront of the compressed air to make the cotton candy Infront of pressurized air. If you were to create a pressurized heated hopper (just above the melting point of sugar) with a one way valve and a have a constant flow of liquid sugar flowing into the barrel with a pressurized air source, you could create an actual cotton candy gun

You should use a vortex tube. Those split the compressed air into a stream of hot air and cold air. I think the temp on the hot side can get up to 200C.

9:05 that’s what she said

I haven't finished the video but the part where you were pouring the liquid down and spraying it and then it was finally working reminds me the movie industry figured out a way to spray I think it was like a melted plastic to make artificial cobwebs on everything so maybe you want to kind of look there to get it kind of different idea

Glue (not Elmer's glue) and an air compressor also works extremely well if not better than molten sugar. I figured that out when I was 9 or 10, this video brought back a lot of memories.

Thought you were dead man this upload is a blessing

2:19 come

7:36 who needs that much cotton candy

"I didn't make cotton candy, I made an afterburner." lmao

Always glad to see backyard scientist post! Keep up the good work!

Can't wait to show this to my kids 😊.

”I didn’t make cotton candy, I made an afterburner” give me the same vibes as “I came looking for copper and found I gold”

"I didn't make cotton candy, I made an afterburner" That's probably the first time those words have been spoken in that order

this man has inspired me to do a lot. thank you

Anybody else here in 4months after the video just to see if he has posted a new video yet?

The ultimate ant machine. You want ants? THIS is how you gets ants.

I wonder if basically making it into a giant airbrush would've worked. Leafblower with the pot attached to the top, a funnel to pour it into the air stream, and a valve to close off the pot to keep it from leaking.

Love the ideas, keep the great work coming

4:20 normal american behaviour

I think the vertical cotton candy cannon was my favorite.

I know the steps on how to make a cotton candy gun in 5 steps Step 1 : Make molten sugar Step 2 : Put molten sugar into metal container Step 3 : Take 2 large propane stove burners and set them to high, take some high temperature piping connecting them with a stream of compressed air Step 4 : Make a venturi nozzle to fit between the high temperature piping and the molten sugar Step 5 : Activate the compressed air

This man gets a good idea and DOES NOT stop until the product is perfect/ exactly what he thought of. He doesn't care about how low the frequency of his uploads is, but the quality of each vid is op.

1:53 my nose at night be like:

You should put the final method into some sort of shooter casing and add a heating element, so you could put cotton candy sugar into the top and make it shoot out cotton candy strands automatically.

Halloween alternative for fake spiderwebs with the first leaf blower method!

4:09 That contact panel got me acting unwise, my oh my. What a gorgeous rear view.

7:58 is where the promo ends

In 50 seconds, you described the Venturi effect much faster, and with more interesting applications than getting my mechanical engineering certs ever did.

"while i was messing around, i accidentally discovered..." Always the best discoveries in science follows that intro

Me after November 6:10

Thank you for all the things you make!

The amount of ants this guy must've summoned by doing this would just mind blowing. I seriously could only imagine

let's have a minute of silence for the poor plants in the alleyway which have been through a lot over the years

You do not disappoint with these uploads!

Can we just appreciate for a second how much time and energy and money gets spent to make these videos. You sir are a legend.

I swear you will definitely have an ant infestation. I mean literally every insect on the planet gonna be at your house

I thought the CIA kidnapped you to make some secret technology for them lol

was that rocket league in the background???? 5:49

A gun that turns things into candy hasn't even been done in video games before lmao

Nobody: Every Florida Man: "I didn't make cotton candy, I made an afterburner..."

My man 👊🏻😁🍻🍻🍻🍻