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HOLDING AN EXPLOSION at 20,000 fps - Smarter Every Day 156 

SmarterEveryDay
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I always thought firing from the center was the best way to do it. Turns out I'm probably wrong.
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15 июн 2024

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Комментарии : 6 тыс.   
@Mike-vg6gd
@Mike-vg6gd 4 года назад
Destin: “Its like 9 o-clock” Destins neighbor: “Only 110 Decibels tonight, he’s being thoughtful”
@germanstorms2785
@germanstorms2785 3 года назад
That is by far the most underrated comment on earth
@jya4676
@jya4676 3 года назад
Lol
@GOD-LOK
@GOD-LOK 3 года назад
Deserves more than a million likes
@noxious89123
@noxious89123 3 года назад
The neighbour was crazy chill X)
@MattChaffe
@MattChaffe 3 года назад
Best comment on this video 🤣
@TheTinyWheels
@TheTinyWheels 6 лет назад
I just love the way he laughs after every shot like a maniac A happy man with a happy potato gun
@stephanieswanson8655
@stephanieswanson8655 5 лет назад
yep
@crafty4722
@crafty4722 5 лет назад
Yup
@connorthesledneck1398
@connorthesledneck1398 5 лет назад
Every time he laughs it makes me laugh just as hard
@saltybildo4415
@saltybildo4415 4 года назад
Theyll do that to a person lol
@FoeHammerTime
@FoeHammerTime 4 года назад
Have you ever met a sad man with a potato cannon? I haven't.
@siddhantchaudhary4946
@siddhantchaudhary4946 5 лет назад
0:51 *2 days later... Man killed by high velocity potato*
@iampranavkarra
@iampranavkarra 5 лет назад
😂🤣😂🤣😂🤣😂🤣😂😆🤣😂🤣😂😆🤣😂😆🤣😂🤣😂😆🤣😂😆😆🤣😂😆😆🤣😂😆🤣😂
@Mr.Tom_69
@Mr.Tom_69 4 года назад
This made my day 😂🤣
@eaglegaming71
@eaglegaming71 4 года назад
LMFAOOO
@caribbeanfilms6817
@caribbeanfilms6817 4 года назад
@@eaglegaming71 Ahhhh
@darkshadow756
@darkshadow756 4 года назад
We need to ban assault potato guns their dangerous 🤣🤣🤣
@jeffvader811
@jeffvader811 5 лет назад
7:34 When you get too close to the mic.
@sprisier7953
@sprisier7953 4 года назад
Jeff Vader it sounds exactly like my friends eating their mics
@mengekyosyaringanKamui
@mengekyosyaringanKamui 4 года назад
😂😂😂😂😂😂😂✨✨✨
@dylanfields6337
@dylanfields6337 3 года назад
Rip head phone users
@TheKingofRandom
@TheKingofRandom 8 лет назад
I appreciate the beauty of this experiment
@tree661
@tree661 8 лет назад
Why isn't smartereveryday collaborating with mark rober, grant Thompson, and the backyards scientist?
@leonelc29
@leonelc29 8 лет назад
Oh hi! Your random appearance is random.
@WastedDad
@WastedDad 8 лет назад
It is beautiful
@joshbigornia4797
@joshbigornia4797 8 лет назад
Its cool how the science you tubers watch other cool science you tubers videos. Good Job, guys keep YouTubing!! :D
@theCodyReeder
@theCodyReeder 8 лет назад
Hi Grant! Looking forward to seeing you next week!
@6Foot4Honda
@6Foot4Honda 8 лет назад
one of the coolest channels on youtube! it was nice meeting you at vidcon today man!
@Nalopotato
@Nalopotato 8 лет назад
vroom vroom!
@dairissaldaks4768
@dairissaldaks4768 8 лет назад
OMG! It's 6Foot. Dayum dude. Cool seing that you are getting ''Smarter Every Day''
@ramennoodles7221
@ramennoodles7221 8 лет назад
I wish i could get to see him, love your channel btw
@kerrermanisNL
@kerrermanisNL 8 лет назад
Whaddup 6foot!
@bronsonstephens5799
@bronsonstephens5799 8 лет назад
#jealous
@funy0n583
@funy0n583 4 года назад
everyone: HE'S GOT A BOMB GET DOWN SmarterEveryDay: HOLDING AN EXPLOSION at 20,000 fps
@duhduu6658
@duhduu6658 4 года назад
Hahaha this is underrated
@ERIK-457
@ERIK-457 4 года назад
In this case, what do you mean with fps? feet per second or frames per second? i am not used to use the imperial system
@funy0n583
@funy0n583 4 года назад
@@ERIK-457 frames per second
@doapin6240
@doapin6240 3 года назад
@@ERIK-457 it’s frames per second
@ERIK-457
@ERIK-457 3 года назад
@@doapin6240 Ok
@TheRealAdam1012
@TheRealAdam1012 4 года назад
I've been watching for awhile. I'm a auto technician and your videos are always refreshing to watch. Nothing but problem solving and learning. If you only knew how good of a mechanic you would be
@janeksobieralski7334
@janeksobieralski7334 Год назад
With this man's willingness to analyze flaws, consider different ideas and find better options, he could be almost anything! Just a 26yo recovered addict, but as soon as I saw the first clip ignited from the back, I knew it had to be optimal, as the potato will leave as soon as it is pushed with enough pressure, and trying to increase the burn rate will not change the fact that there is a K(constant ratio) forcing the potato out, and increased pressure will have almost no impact on that besides backburn
@christopherwillson4269
@christopherwillson4269 Год назад
He's an aerospace engineer.
@theCodyReeder
@theCodyReeder 8 лет назад
My hand feels a phantom pain every time you fire the gun with your hand on the back. Brings back memories of when I tried using engine starter fluid and pure oxygen which blew off the end cap and injured my hand. But I am thinking that the flame front is compressing the gas but not igniting it so it would be better to add some stuff to the gun, like balls of copper wire, to break up the wave front and allow a more rapid combustion.
@darkphilosopher9587
@darkphilosopher9587 5 лет назад
Cody'sLab poets get this comment some more likes
@sleestalk
@sleestalk 5 лет назад
.. Jesus cody, engine starter fluid and pure oxygen?? youre lucky you still have a hand holy christ.
@devenr6213
@devenr6213 5 лет назад
a smaller tank would have more pressure, less kick, and more velocity, because the sides of a container tend to flex, and he has a lot of space for air in this container
@TNUni167
@TNUni167 5 лет назад
Could you please the link to the video?
@robertsmith5323
@robertsmith5323 5 лет назад
keep the back of that weapon clear
@kylesimpson6729
@kylesimpson6729 5 лет назад
This may be the only video i have seen where the video looks as cool as the thumbnail if not cooler.
@surabhikolte4697
@surabhikolte4697 4 года назад
Yeah
@susmanjig.223
@susmanjig.223 3 года назад
daily dose of internet doesn’t clickbait eather
@a1d2n54
@a1d2n54 3 года назад
Quite true
@thebaronv7909
@thebaronv7909 3 года назад
Watch styropyro
@bradkabatow9599
@bradkabatow9599 3 года назад
Agreed.
@thefox7938
@thefox7938 3 года назад
There is now a non-0 chance of getting hit by a potato at orbital speeds,AT NIGHT
@MikkoRantalainen
@MikkoRantalainen 3 года назад
There's actually zero change to get into orbital speeds with plastic potato gun.
@sweepsweep5572
@sweepsweep5572 3 года назад
@@MikkoRantalainen but that potato hitting u might do enough damage to finish your stay on earth lol
@audacitytheeditor3225
@audacitytheeditor3225 4 года назад
1:40 The SOUND of him pushing the potato in, I LOST IT!!!
@thetruecanadian9318
@thetruecanadian9318 7 лет назад
thats a good neighbor. " you do what you want on your side, ill do what i want on my side" wish all neighbors could be like that.
@metanumia
@metanumia 6 лет назад
Agreed, very friendly neighbors! :)
@Hexnilium
@Hexnilium 6 лет назад
Good fences make good neighbors. #libertarianism
@xxashleythefoxx6765
@xxashleythefoxx6765 5 лет назад
I bet his neighbors hate him LMAO
@MorpheusOmikron
@MorpheusOmikron 5 лет назад
His neighbors are getting a cut, I guarantee it. They have to deal with his insane bullshit. I wouldn't tolerate it if he didn't make it worth my while. *rubs hands together*
@zachkristufek185
@zachkristufek185 5 лет назад
@@MorpheusOmikron Good thing it doesnt matter what you think
@kcwidman
@kcwidman 8 лет назад
You laughing at the blast made me smile and feel all warm inside. Thanks for a great video Destin!
@BuckytheRaptor
@BuckytheRaptor 8 лет назад
YES
@sunmoon2225
@sunmoon2225 8 лет назад
It's so satisfying watching him laugh like an amazed kid
@JunaidAli-cu1vx
@JunaidAli-cu1vx 8 лет назад
Exactly...he is like an excited little kid..which makes me all excited for science too :)
@hennesschulze136
@hennesschulze136 4 года назад
I watched this Video so often and i always love the way he laughs and gets excited. Also in other Videos. He has passion for whatever he's doing
@Bmxmusikian
@Bmxmusikian 5 лет назад
Love your channel mate! Yesterday I decided to watch every episode....watched about 40 so far....love the sound effects you add for the slowmo parts...
@oorahjoe
@oorahjoe 5 лет назад
There's a more efficient way that I found as a kid. Instead of loading the potato first, you just get an airtight seal in the muzzle, add your fuel to the chamber (carburetor choke cleaner or starting fluid) and then drive the potato down the barrel increasing the amount of oxegen in the chamber equaling a MUCH greater efficiency and stronger shot
@mdexter3722
@mdexter3722 5 лет назад
TigerLand Paintball I was very surprised that he got that kind of thump out of his cannon doing it this way..? I just made some with my boys and we spray first then pressurize the chamber, like you said. Now on the hunt for the transparent piping...!
@bradleyland
@bradleyland 5 лет назад
The downside of this method is that you lose significant fuel atomization as the fuel condenses on the sides of the combustion chamber while you're loading. The effect of the compression you achieve by putting the potato in last is minimal compared to the loss of fuel atomization. Optimal combustion chamber to barrel volume is around 2:1 for most fuels, so if you cram the entire volume of the barrel into the combustion chamber, you've achieved a compression ratio of less than 1:1. Fuel atomization and air/fuel ratio play a much larger part in performance.
@kingjames4886
@kingjames4886 5 лет назад
kinda safer to ram the potato down first tho...
@guyward5137
@guyward5137 5 лет назад
You know he’s going to test that theory. Lol
@dustywelchcraneman6614
@dustywelchcraneman6614 4 года назад
@@kingjames4886 if was were worried about safety we would be playing with Lincoln logs lol
@CdeCiencia
@CdeCiencia 8 лет назад
0:53 and 0:57 reminds me of Gollum hahaha
@kristen0009
@kristen0009 8 лет назад
martiii
@danielharman4437
@danielharman4437 8 лет назад
Really? I would've thought it went better when ignited from the end
@rec4472
@rec4472 8 лет назад
Martín para cuando vídeo??
@ThePowerLover
@ThePowerLover 8 лет назад
Too much Lord of Rings XD Turn back to make videos, without sensationalism now please.
@-pyrosef-
@-pyrosef- 8 лет назад
+Matias Quantum ya tu sabes
@guyward5137
@guyward5137 5 лет назад
That was fantastic I enjoy every second of the video and I got smarter. I can’t wait to tell my son about y’alls channel. Keep up the great work you are doing to educate your viewers. GW
@typowykowalski8004
@typowykowalski8004 4 года назад
Everything nicely explained, with pictures in good quality, probably the best fil on this subject and how it works
@HalkerVeil
@HalkerVeil 8 лет назад
So the big bang is probably our universe in Gods potato gun. And he's laughing at it in the slowmo footage he made. Suddenly everything makes sense.
@Carlos-sr8km
@Carlos-sr8km 8 лет назад
And Gods universe comes out of the potato gun we shot in slow mo footage.
@theccc8318
@theccc8318 8 лет назад
And whenever we make a potato gun like this and fire it, WE create an entire small Big bang, that makes all life...And that is why life will never end.
@brefstank8398
@brefstank8398 7 лет назад
Then nearly fourteen billion years ago expansion started. Wait... The Earth began to cool, The autotrophs began to drool, Neanderthals developed tools, We built a wall (we built the pyramids), Math, science, history, unraveling the mystery, That all started with the big bang (Bang)! "Since the dawn of man" is really not that long, As every galaxy was formed in less time than it takes to sing this song. A fraction of a second and the elements were made. The bipeds stood up straight, The dinosaurs all met their fate, They tried to leap but they were late And they all died (they froze their asses off) The oceans and Pangaea See ya wouldn't wanna be ya Set in motion by the same big bang! It all started with the big BANG! It's expanding ever outward but one day It will pause and start to go the other way. Collapsing ever inward, we won't be here, it won't be heard Our best and brightest figure that it'll make an even bigger bang! Australopithecus would really have been sick of us Debating how we're here, they're catching deer (we're catching viruses) Religion or astronomy (Encarta Deuteronomy) It all started with the big bang! Music and mythology, Einstein and astrology It all started with the big bang! It all started with the big... BANG!
@Schmidtelpunkt
@Schmidtelpunkt 7 лет назад
"The works of the LORD are great, sought out of all them that have pleasure therein." Even as an atheist I have difficulties to deny that when looking at awesome slo-mo-footage of a potatoe gun.
@jonahhillman6491
@jonahhillman6491 7 лет назад
+Bref Stank Awesome poem!
@Criiies
@Criiies 8 лет назад
Wow, talk about clickbait -_-, didnt expect that from this channel. I just counted and theres actually only 19942 fps..
@Moscato_Moscato
@Moscato_Moscato 8 лет назад
And that estimates up to 20000 fps so your point is moot
@zebigboss5121
@zebigboss5121 8 лет назад
For real ?
@Macfanize
@Macfanize 8 лет назад
That's the joke, genius.
@bobmat343
@bobmat343 8 лет назад
+Deebo Molina Nothing goes over my head... I would catch it.
@HeliosBeats
@HeliosBeats 8 лет назад
I understood that reference
@jameskenney5623
@jameskenney5623 2 года назад
I don't know how I'm just barely seeing this video, but I've built so many of these in my life and have always sparked from the end. This was mainly because if the cap fails or the sparker fails, you just replace the cap, rather than the entire cannon, plus I didn't feel safe drilling holes in the chamber for fear of creating a weak point considering how much of a thump these create. Awesome video, thanks!
@oranecole8302
@oranecole8302 3 года назад
This channel is no good for me, now I'm addicted and need to get back to work, lol. Thanks for the great experiments you do, it's really a magical experience being able to see the outcomes of your ingenious mind. Continue inspiring the next generation to do the same! Cheers, Orane
@BluSnake516
@BluSnake516 6 лет назад
Great Video! Like Dustin said, "There's multiple PhD dissertations in a potato gun." Built one for my high schooler to teach concept of stoichiometry and soon learned that I was also teaching pressure-volume-temperature lessons. We started with hair spray, but that didn't really teach the concepts, so we moved to propane as fuel. We built a "metering device" to deliver just the right amount of propane (4% in air, or 20% in pure oxygen) for our 4" x 48" PVC combustion chamber. We also added a brushless 12v computer fan to mix the propane/air mixture prior to ignition. To standardize our potato weights and shape, we cut them all 5" long and "cored" them into our 1-1/2" x 60" PVC barrel. Our original design used only one BBQ ignitor spark centered in the combustion chamber. Inclined at 45 degrees, our potatoes averaged 138 yards. Hypothesizing more sparks, means more burning wave fronts, faster pressure build up, and further distance, we increased the number to 2, 3, 4, 5 sparks evenly spaced w/in our 48" long combustion chamber. We averaged 157 yards w/ 2 spark points, 174 yards with 3 sparks, 180 yards with 4 sparks, and no further improvement with 5 sparks. Finally we purchased a rifled 1-1/2" x 60" PVC barrel online. That added nearly 100 yards to our distances!!! We averaged 266 yards with 4% propane/air, 4 spark points, and rifled barrel. Needless to say: Hearing protection is a must! Too scared to try 20% propane + pure oxygen in a PVC combustion chamber.
@mitchellmaytorena1137
@mitchellmaytorena1137 5 лет назад
pgootos You already did all the R and D. Now just find a manufacturer and market this product! You're going to be rich!
@maniacal_engineer
@maniacal_engineer 5 лет назад
that is what a dad is supposed to be.
@DouglasRadzanowskiJr
@DouglasRadzanowskiJr 4 года назад
Award for dad of the year goes to pgootos
@ketzbook
@ketzbook 4 года назад
please share your results if you ever try the pure oxygen...I would be cautious about that too. I checked out your channel; you should share videos of your cannon.
@sanjayproductions5690
@sanjayproductions5690 4 года назад
His name is destin
@PikaPetey
@PikaPetey 8 лет назад
this is excelent refference for future animations!! I want to animate an explosion now.
@XxFreelancet
@XxFreelancet 8 лет назад
You are gross
@XXAcurseshadow3
@XXAcurseshadow3 8 лет назад
+Alec Johnson Traitor
@commonsense6323
@commonsense6323 8 лет назад
Pika senpai
@jaredsquirrels5242
@jaredsquirrels5242 8 лет назад
I wish you would at least make another channel for commenting dude, like you're puplar enough already, quit trying to freaking advertise your channel everywhere.
@jaredsquirrels5242
@jaredsquirrels5242 8 лет назад
+Ludwig The Great popular*
@boblydecker5951
@boblydecker5951 2 года назад
The audio during the high speed playback of the ignition is AWESOME. Great sound design for a film project!!!
@WickdPerfekT
@WickdPerfekT 4 года назад
I need all my neighbors to be like that guy.
@stevengillespie6535
@stevengillespie6535 7 лет назад
So this is why my house keeps getting hit with potatoes at 9pm.
@RobertShaverOfAustin
@RobertShaverOfAustin 7 лет назад
When I was a kid I used to explode empty plastic bleach bottles by filling them with oxygen + acetylene from a torch. In order to get the perforce proportions of oxygen to acetylene I did the following. 1. Fill the bleach bottle full with water. 2. Fill a washtub with 4 inches of water. 3. Light the torch and adjust the flame for a perfect burn. 4. Press the torch tip to the pavement to extinguish the flame. 5. Invert the bleach bottle in the washtub so that it was still full of water. 6. Put the torch into the mouth of the bleach bottle so that the oxygen + acetylene mixture displaced the water in the bottle. 6. When the bottle is empty of water and full of the perfect combustion mix, cap the bottle. This left me with a one gallon plastic bottle exactly full of combustible gas. Not acetylene + air but acetylene + oxygen. So I'd love to see you do something similar with your transparent potato gun and show is the slo-mo of that combustion event. But I'm not sure you should be holding the gun when you light it off. I used thin plastic bottles so that they did not generate any dangerously sharp shrapnel. :) Even as a kid doing stupid things, I was careful about safety.
@cornfarts
@cornfarts 7 лет назад
hope he does this!!
@industrialdonut7681
@industrialdonut7681 7 лет назад
Robert Shaver those torches have oxygen in them already you mean?
@lorenzo42p
@lorenzo42p 7 лет назад
I love how youtube still can't make a functional website. long comments cut off with no link to expand.
@ankegernsk9545
@ankegernsk9545 4 года назад
6:00 like a red-hot thread, weird effect
@sandilezikode7418
@sandilezikode7418 5 лет назад
I want to be as passionate about one as Destin is with his science stuff.. the joy in him is amazing whenever he's doing these things. Motivated.
@cubethesquid3919
@cubethesquid3919 7 лет назад
Two questions. 1. Is this legal. 2. How do I make one. Actually, forget question 1. I only care about making one.
@lordofthegaurdians8364
@lordofthegaurdians8364 7 лет назад
Cube the Squid 😄
@randymc61
@randymc61 7 лет назад
jimbot70 I can't see how this, in any way could be considered a firearm. ATF doesn't even consider black powder rifles as firearms. anyone can buy them, including convicted felons. Some States might have some stupid laws, but the Feds should not care.
@randymc61
@randymc61 7 лет назад
jimbot70 correct. btw, I didn't realise I had a typo in my post, until I came back to read yours.
@RamesGamesLC
@RamesGamesLC 7 лет назад
I kinda assumed he'd have a video of him making one, but I guess I was wrong. Not that I want to make one, google is a thing. I just wanted to see his because it could be considered entertaining as well.
@donaldoconnor7689
@donaldoconnor7689 7 лет назад
I have built this although i had to use PVC pipe as opposed to the acrylic tubing in the video. totally legal as far as this goes cheap as well
@tarrker
@tarrker 8 лет назад
"We can look directly into the science!" Awe yeah, son! :)
@wizardmikey6773
@wizardmikey6773 8 лет назад
DON'T DO IT ITS GONNA HURT
@curtisdoty7403
@curtisdoty7403 3 года назад
Thank you for what you do! I so enjoy watching your videos and showing them to my boys.
@ravvij9643
@ravvij9643 5 лет назад
That ignition from the center is freakin beautiful! And a bit hypnotic. I'd love to have a clip of just that on a black backdrop playing on a loop on my computers screen.
@jamiebrown4647
@jamiebrown4647 8 лет назад
my brain is just like "big explosion BOOM BOOM"
@jamiebrown4647
@jamiebrown4647 8 лет назад
i dont science
@frombatman2012
@frombatman2012 8 лет назад
U wut!?
@dan428
@dan428 8 лет назад
You should not be proud of your lack of curiosity
@abduIla
@abduIla 8 лет назад
+Batman How dare you, you phony. IM BATMAN !!
@chopinbloc
@chopinbloc 8 лет назад
Yeah, that is not a "big explosion". It's really cool and all, but no.
@BrianMDPhD
@BrianMDPhD 7 лет назад
This is absolutely incredible! The slow mo sound is like something you'd hear in Resident Evil.
@tylerscudder9358
@tylerscudder9358 7 лет назад
BrianMDPhD sure...
@bowmin1
@bowmin1 7 лет назад
That sound is probably added in afterwards. Can't slow mo sound unless you record it with a normal camera and distort it heavily. It's either artificial, or actually is recorded sound slowed down.
@giin97
@giin97 7 лет назад
Novus Gaming he credits where he got the slomo sound.
@KruelxOEMxLBC
@KruelxOEMxLBC 7 лет назад
the explosion sounds like the planet Saturn.
@photosimonson
@photosimonson 7 лет назад
There is no way to record sound at that speed that i know of.
@mattilaiho7979
@mattilaiho7979 2 года назад
It's a really nice experiment to show off the burning/explosion mechanics in a barrel. The lingering burning gases just brought an addition on my mind; I bet this would be a really good way to show off bore evacuators and how they exactly work! They're a really interesting and a simple-seeming piece of technology you find on newer cannons, whose purpose is to push the rest of the burning gases out of the barrel before the breech opens back up.
@dr.piercesphysicsmath9071
@dr.piercesphysicsmath9071 2 года назад
Brilliant. So fun. This guy has such a great attitude about everything. Well done!
@AvatarLandRazer
@AvatarLandRazer 7 лет назад
your parents normally dont let you stay up this late? 0:55
@bertjesklotepino
@bertjesklotepino 7 лет назад
what kind of walls do you have? Paper walls? Havent ever seen a potato come through a brick wall.
@bertjesklotepino
@bertjesklotepino 7 лет назад
***** i didnt hear anything, to be honest....as for sarcasm. I did read some. >;)
@evanbennett3094
@evanbennett3094 7 лет назад
Windows exist
@moefag
@moefag 7 лет назад
Evan Bennett what? Windows can break because of a potato? I'm glad I use Linux :D
@iamlowtonez
@iamlowtonez 7 лет назад
Well small towns we have things called sound curfew
@greg669
@greg669 7 лет назад
that was the best video i have ever seen in my life
@ThreeXcore
@ThreeXcore 7 лет назад
really? it was good but best?
@greg669
@greg669 7 лет назад
the bestest
@alexdelarge8772
@alexdelarge8772 4 года назад
Destin, I love it when you lose it and just geek out! I totally get it!
@Fightre_Flighte
@Fightre_Flighte 4 года назад
I like how you simultaneously explained it was the ad portion, described what you were doing, and rushed (safely) to keep your audience around. No loss of flow. Just a little extra speed at the end
@Kram1032
@Kram1032 8 лет назад
Ok so this probably is silly but what happens when you ignite: - "in the front" (so on the end of the chamber closest to the potato) - in multiple spots at the same time (back/center, back/front, front/center, back/front/center) - in an oxygen-enriched environment (for the extra danger) - after preheating the walls (to presumably make the combustion more efficient - this will take a lot of modification to work though) - if you add turbulences to mix the air (is there a small electric fan you could use in the chamber, which would survive the combustion? - this might act similarly to preheating, making combustion more efficient.)
@qwerty123il
@qwerty123il 8 лет назад
+1 to answering those please! I think I can answer one, I found personally is the back is way more effective than the front, I haven't tried middle.
@Kram1032
@Kram1032 8 лет назад
I doubt front would be particularly effective. It'd probably have too little time to properly expand before starting to push out the potato or it might even have to rebound once, losing energy in the process, before it can move the potato at all. Still, for completeness' sake it would be interesting to see.
@Cronuz2
@Cronuz2 8 лет назад
I would love to see different shapes of the chamber. Would ripples (like on a golf ball) on the inside make the mixture move differently?
@Kram1032
@Kram1032 8 лет назад
Different profiles or shapes in general would also be nice! Perhaps a sphere with a cone on one end , where the ignition is roughly at the sphere's center, would provide more oompf towards the potato end. It certainly would mean a lover surface area compared to the chamber volume which, I think, would mean a smaller region in which the gas would be cooled by the walls. And a golf-ball like skin might provide turbulence which, on one hand, would take a little bit of the energy out of the explosion but if, on the other hand, that means it's better mixed, the fuel might be burned more efficiently, overally giving a boost.
@MPflugga
@MPflugga 8 лет назад
Also, what happens with less fuel in the chamber (3, 2 or even 1 "mississippi") ?
@B0GlES
@B0GlES 8 лет назад
Destin.. DESTIN... if you spray your combustible gas into the chamber first and seal it - then, push your potato down the barrel - you compress the gas and air - giving you a better bang :D
@BlakieTT
@BlakieTT 8 лет назад
:O
@Dragoslav_MD
@Dragoslav_MD 8 лет назад
It could get much more dangerous, I guess...
@ajinarul
@ajinarul 8 лет назад
Pushing a tight potato down a sealed pipe,sure... -.-'
@nargakon
@nargakon 8 лет назад
That's exactly how a 4 stroke engine works ;)
@123Comrade
@123Comrade 8 лет назад
It might pre-maturely explode due to the high pressure...
@timgrant8729
@timgrant8729 7 месяцев назад
Absolutely amazing footage! I love your content! Thanks!
@jankennetharan7190
@jankennetharan7190 4 года назад
As a teacher, you really help me to teach my students in a very interesting way :) thank you!
@domvasta
@domvasta 8 лет назад
You could plug the potato, spray the fuel, then push the potato down to the end to provide a higher partial pressure of oxygen in your combustion chamber.
@TheEpicLinkFreeman
@TheEpicLinkFreeman 8 лет назад
this has been figured out centuries ago. hint: bullets and cannons
@domvasta
@domvasta 8 лет назад
the ignition from the back of the chamber and the oxidizer balance was what I think he was referring to.
@geraldhenrickson7472
@geraldhenrickson7472 8 лет назад
Maybe that is why he says there is enough information here for several PhD's [thesis}. He explains the physics a bit yet has left the actual data gathering to those PhD candidates. That is when the elimination of variable gets serious. This is a really fun video to watch...
@spikester
@spikester 8 лет назад
Attaching a small battery powered air pump (like from a portable sphygmomanometer) with a one way check valve is also a good way to pressurize the chamber with oxygen after stuffing the spud in. Much bigger bang. My old spud gun ran off 2AA batteries for both igniter and air pump.
@TheMTrider16
@TheMTrider16 8 лет назад
Engines do this with a 9:1 or greater compression ratio. The potato moving from the end of the barrel would be an insignificant change to the pressure in the chamber. Your thought is going the right direction, just not a significant enough change.
@Thebluesniper477925
@Thebluesniper477925 8 лет назад
Edible Ammunition.... War has changed!
@cnano98
@cnano98 8 лет назад
Solving world hunger and world tension in one fell swoop.
@emiledwards620
@emiledwards620 8 лет назад
...Giving a while new meaning to using "eat this!" as a battle cry.
@silentt8161
@silentt8161 8 лет назад
Call of duty potato warfare confirmed
@28mayhem
@28mayhem 8 лет назад
But... but.... War never changes...
@RaidenTenrai
@RaidenTenrai 8 лет назад
War...war never changes...
@benjaminhill3434
@benjaminhill3434 3 года назад
How am I only seeing this video series this fall??? Awesome Content!!!
@jcims
@jcims 3 года назад
Digging back into the archives! Really liked how you could tell the central ignition moved the spud faster. Presumably because the flame front had twice the surface area. Makes me wonder what would happen if you had multiple igniters along the volume of the chamber.
@taohawaii
@taohawaii 7 лет назад
2 things. 1) Chamfer the end of the barrel slightly so that it compresses the potato as you load it (use the barrel to cut the potato. 2) Use less fuel. If you hit a slightly rich stoichiometry your deflagration rate will increase. When you load the potato, just insert it into the end. Then add fuel. After capping, push the potato down which will compress the gas and air mixture making the deflagration rate even faster. Ignite it quickly as the pressure will have a tendency to escape. This of course, assumes you have a well sealed combustion chamber. You'll be surprised at the difference it makes.
@larrog8413
@larrog8413 7 лет назад
Using MAPP gas (opposed to propane or hairspray), and having multiple ignition points, helps as well.
@mateofernandez3139
@mateofernandez3139 7 лет назад
I'm guessing there will be a bigger louder and more effective explosion?
@larrog8413
@larrog8413 7 лет назад
Mateo Fernandez Faster explosion. The faster the gas burns, the more efficient it is, and the more power goes to launching the projectile.
@mateofernandez3139
@mateofernandez3139 7 лет назад
Larro G oh ok because its faster its more efficient and powerful?
@PhilJonesIII
@PhilJonesIII 7 лет назад
'Deflagration'.....not seen that word in a while :)
@ALEXLAB
@ALEXLAB 6 лет назад
Awesome!
@alexromo889
@alexromo889 3 года назад
Tuff how this got 6 likes
@lbovee
@lbovee 4 года назад
Another winner! Brought back memories of fun with my potato gun.. (got my audible subscription and have downloaded 3 books)
@warryen
@warryen 5 лет назад
Those slow motion shots gave me the chills. They were absolutely beautiful.
@Mayhapse
@Mayhapse 7 лет назад
I made one of these with a friend for a 6th grade science project in 1997. We told our parents we were making a potato gun and they were like "Aww, okay sweetie". Me and my buddy used our lunch money that we had saved up and ended up using two screws through a 3" chamber with a piezoelectric BBQ ignitor and cap mounted striker ignition on two different models and tested them with three different brands of hairspray at the same inclination to figure out what was the best combustion method and fuel and measured how far the projectiles traveled before impact. We both got suspended and could not compete because our presentation used the word "gun" lol. Btw, piezoelectric middle-mounted wood screws with aquanet hairspray worked best.
@briantruckinglanders6375
@briantruckinglanders6375 6 лет назад
Mark Turkali : Should've used the word " LAUNCHER". Oh well.
@icuppu2
@icuppu2 6 лет назад
Mark, thank you and your friend for your experiment in the 6th grade, and for sharing your Aquanet hairspray fuel findings.
@jerrypeppler1484
@jerrypeppler1484 5 лет назад
Potato stimulant, potato encourager, for the politically correct: potato empowerment. Flying not Frying!
@chanceebersole3215
@chanceebersole3215 5 лет назад
Use word marker. Like paint markers. Were did all common sense go. Should not matter. Just be smart about it.
@SocialRegressive
@SocialRegressive 8 лет назад
I read an interesting article a while back about the efficiency of homogeneous mixtures versus heterogeneous mixtures in diesel cylinders. The author initially guessed that a homogeneous mixture of fuel and air would provide a better burn for increased power and efficiency. In his research, he discovered that he was quite wrong, and that the extended burn generated by the heterogeneous mixture provided considerably more power over the length of the cylinder stroke. Watching the two burns in this video reminds me of the results he was getting. The pressure in the rear-ignition firing seems very linear. I'd be curious to see what the difference in velocities is.
@Gromitz101
@Gromitz101 8 лет назад
What mixtures did he use, two different types of fuel, or different grades of gasoline?
@SocialRegressive
@SocialRegressive 8 лет назад
Gromitz101 They were the same fuels; just diesel from a local gas station. If I recall correctly, one was evenly mixed in the chamber as a fine mist, and the other was more coarsely injected.
@steffankaizer
@steffankaizer 8 лет назад
exactly. i already knew all this because i am such a smart cookie but it would be super great to do moore research on it. he is using a too rich mixture. it is also a fast burning airosol. the peak pressure should be when the potato is in the middle of the barrel or rather the wave and pressure should be tuned to have the greatest sustained pressure when the projectile is at the end of acceleration. it may also be usefull to mix water in the fuel to slow the combustion down like some people do with cars. something like spiritus with water should work great. i wish i had access to pvc and a high speed camera and i wasnt so lazy then i would be shooting all day and night.
@coopermosshart
@coopermosshart 8 лет назад
Shouldn't they be pretty much the same, so long as you had total combustion?
@SocialRegressive
@SocialRegressive 8 лет назад
Cooper Hart Curiously, no. I suppose the final product (a new volume of gas) would be the same, but the reduced rate of burn noticeably increased the acceleration of the piston through its entire stroke.
@TheGJRuppert
@TheGJRuppert 3 года назад
Watching Destin giggle like a little kid makes me happy.
@charlesendicott9044
@charlesendicott9044 Год назад
Beautiful and answers so many questions in such a short time please do similar in the future.
@normund8348
@normund8348 8 лет назад
This is how slow-mo firing guns in movies should look like
@HistoricaHungarica
@HistoricaHungarica 8 лет назад
Underexposured?
@normund8348
@normund8348 8 лет назад
HistoricaHungarica Actual guns fired and filmed by 20000 fps camera, not CGI
@TheKiroshi
@TheKiroshi 8 лет назад
+Normax Eight You'll be seeing a lot non-action then.
@TheKiroshi
@TheKiroshi 8 лет назад
+Normax Eight You'll be seeing a lot non-action then.
@L8dyAriel
@L8dyAriel 8 лет назад
I'd love to see how Eli Roth or Tarantino would present this idea..
@s41k05
@s41k05 7 лет назад
Wish you were my science teacher T_T
@gamesandotherify
@gamesandotherify 7 лет назад
Look up for Tyler DeWitt on RU-vid, he is an online Science (biology, physics ...) teacher He works at the MIT and his courses are really interesting if you love science, it's not boring at all
@s41k05
@s41k05 7 лет назад
MIT? no wonder then xD, He's awesome!
@acecandy4787
@acecandy4787 7 лет назад
Any recommendations about a math teacher?
@thegoldennugget.comawesome4229
Ace Candy,NOONE LIKE MATH!!
@haydencox5707
@haydencox5707 7 лет назад
Saiko Path I built one for a science project in fifth grade
@spysweeper
@spysweeper 3 года назад
You are awesome!! Keep doing what you’re doing!! Best tangible science stuff I’ve seen that is palatable to the masses!! 👍🏽🙌🏽😄
@tizwah
@tizwah 4 года назад
I love your channel. It's just the best, keep up the good work!!
@jlco
@jlco 5 лет назад
I love the sound design for this, something about it is just so calming...
@insanitysoldseparately6429
@insanitysoldseparately6429 5 лет назад
Destin, dude, your giddy laugh after every shot is So wholesome and beautiful. A man outside, a child inside, a scientist all around.
@pablopun2905
@pablopun2905 3 года назад
1:47 at .50 playback speed... I laughed for entirely too long
@cesardasilva6974
@cesardasilva6974 3 года назад
This is amazing! I will be showing this to my class for the tech and wow factor.
@Zippoking1969
@Zippoking1969 4 года назад
Best one I've seen yet, love it
@scott4398
@scott4398 8 лет назад
The sound makes it about 20,000 times cooler, scientifically speaking.
@scott4398
@scott4398 8 лет назад
George Corkery I had a feeling.
@bjjjccec
@bjjjccec 8 лет назад
+George Corkery how do you know?
@botisonny
@botisonny 8 лет назад
+James Lee High speed phantom cameras don't record sound. And there's credit given for the slowmotion sound designer at the end :P
@ashellinthepit
@ashellinthepit 8 лет назад
Hi there, I'm the sound designer. The reason we have to do the sound artificially is because while you can slow down visuals thousands of times, you cannot slow down sound the same way. Every time you halve the speed, you drop the frequency content by an octave. It doesn't take very many halvings until you have dropped the sound out of the human audible spectrum.
@WRRocket9999
@WRRocket9999 8 лет назад
+ashellinthepit I am really curious about how you do this process, do you use any of the actual recorded sound? Or is it completely artificially generated/from other sources? If you know of any references on this subject that you think are good I would be really interested to read them.
@dstrbd223
@dstrbd223 7 лет назад
If you'll put the potato at muzzle end then spray your fuel and then push the potato down the barrel, you'll get compression and should in turn get a better burn and more power.
@danegietka8774
@danegietka8774 7 лет назад
that might be to much pressure for the tube
@jgr144
@jgr144 7 лет назад
Robert Hathaway awesome thanks
@nicholasc.5944
@nicholasc.5944 7 лет назад
yea that makes sense
@lopezjose168
@lopezjose168 7 лет назад
i found out this works really good
@industrialdonut7681
@industrialdonut7681 7 лет назад
DaneWolfOnTheBattlefield How would *that* be too much pressure when it can literally handle the pressure of the propellant burning like that
@toesovernose
@toesovernose 4 года назад
That was an excellent way to maintain the attention of your audience with visual stimuli whilst plugging Audible for their sponsorship. Well done...keep it up!
@33859seveerr
@33859seveerr 3 года назад
Dude, great science. Learned a lot ! And lots of fun to watch.
@manassarpatwar
@manassarpatwar 8 лет назад
hey destin... there is a channel, called real engineering... he wants to collab with you... so you might want to consider a collab...
@rawrqler5246
@rawrqler5246 8 лет назад
Yasssssss
@rawrqler5246
@rawrqler5246 8 лет назад
🌚🌚🌚🌚🌚
@RYSEproductions
@RYSEproductions 8 лет назад
Looks like a pretty cool channel :)
@Kole1389
@Kole1389 8 лет назад
Well, if he wants a collab, it's not that hard to send an email is it?
@Lessinath
@Lessinath 8 лет назад
He might not have Destin's email.
@adamzeno6014
@adamzeno6014 5 лет назад
Destin’s excitement is literally the best thing ever
@224rebels
@224rebels 5 лет назад
Some of the coolest footage I've ever seen. Wow
@ghatch360
@ghatch360 3 года назад
Thank you for the education for my kids and I but really, for your topical verses at the end. DONT STOP!
@pabloarroyo1023
@pabloarroyo1023 8 лет назад
u should have added a muzzle break and explained how it works in slow motion
@josephevans1798
@josephevans1798 8 лет назад
thats genius
@StrelitziaLiveries
@StrelitziaLiveries 7 лет назад
Yeah drill holes at the end of the barrel
@directioner826
@directioner826 7 лет назад
Your probably gonna need a pretty big muzzle brake
@MxMattyB
@MxMattyB 7 лет назад
You only need a big one if you want it to actually counteract recoil, I could imagine a simple one along with voiceover along the lines of "The muzzle brake we made is undersized, as you can see the launcher moving back from the recoil, keep in mind that a larger one would reduce that" while watching a side view and then a top down view showing the muzzle brake jets with a "this is how it works" and maybe a bit about vector arithmetic
@AmericanMusketeers
@AmericanMusketeers 7 лет назад
it just blows the air back towards you so it like tries to sling the gun forward
@x-oduzeuphoria7284
@x-oduzeuphoria7284 7 лет назад
I love how exited you are in every experiment cx
@jim-jimmanniv7219
@jim-jimmanniv7219 3 года назад
I didn't know I needed this so much in my life!
@ryanwong772
@ryanwong772 5 лет назад
Bro...just love your videos......its too good.....and one dought..... which i hope you will clear....what is that bright string type of thing....in the slowmo.....it last for quite a long time and stretches.........looks like a very hot point.....tnx for such a good explanation and videos.....love it ..😉
@saltysteel3996
@saltysteel3996 6 лет назад
I've always made my potato cannons the same way but I have my ignition points about 2 or 3 inches from the barrel side of the combustion chamber. Not in the middle or at the fill cap end. You should try that and see how the air fuel mixture burns. My potato cannons are 4in Dia by 18in long combustion chamber with a 2in Dia by 3ft long barrel. All schedule 40 PVC. I use a push button click start igniter from a grille. Hope you revisit this experiment.
@HelloIamClay
@HelloIamClay 8 лет назад
I love your neighbor.
@MorganHunter92
@MorganHunter92 8 лет назад
"it's your property you can do anything you want over here you ain't gunna bother me" -the dream neighbor.
@Stoicgame
@Stoicgame 8 лет назад
Me the entire video: "Please tell me you informed your neighbors so they don't call the cops" The end of the video: "Oh, thank goodness."
@TheBeccabus
@TheBeccabus 8 лет назад
I thought that should be his Bible verse at the end for this one!
@DallyBearNK
@DallyBearNK 8 лет назад
I must say that firing a potato cannon at watermelons is a pretty strange thing; however, with all of Destin video's, I think that neighbor gave up caring what he does a long time ago! :P
@josedonsel6017
@josedonsel6017 4 года назад
muy buen vídeo gracias x esplicar paso a paso el funcionamiento
@louishorton6743
@louishorton6743 5 лет назад
Excellent video great visuals backed by understandable facts !!!
@SunnyZ
@SunnyZ 8 лет назад
So dope! I never really liked the combustion spud cannons, always liked my pneumatic ones, so much more reliable, and I got a good work out using my bike pump to pressurise em. Awesome footage! And TOP POINTS for telling your neighbour about your 'science experiments' (lets face it, you just wanted to have some fun shooting spuds!) who didn't care about your shenanigans at all xD I wish my neighbours were that cool.
@clintbandura9018
@clintbandura9018 8 лет назад
pneumatic is always the way to go. buy a compressor, lol
@unexistingpromise
@unexistingpromise 8 лет назад
Good idea to super impose the smarter every day just above the launcher, I'm sick of those freebooters getting views from good creatures like you. I am in full support of you doing this more in the future.
@unexistingpromise
@unexistingpromise 8 лет назад
and keep up the good work, love your content and have been a long time subscriber
@richardpeterson6479
@richardpeterson6479 8 лет назад
100% agree. Freebooters are lame. Destin rocks. The watermark doesn't detract from the beauty or the learning. It's sad he has to do it, but I totally get it. If it came from someone else besides Destin, I might think it was lame, gratuitous marketing. But frankly Destin has taught me to see it a whole new way, and if anyone has the humility and good judgment to make wise choices about things like that, it's him.
@giga8847
@giga8847 5 лет назад
Thanks for the last second of the video :)
@neogator26
@neogator26 3 года назад
Going through Fundamentals of Aerodynamics (MAE330) and I'm wondering how much boundary layers come into effect as the hot exhaust exits the barrel. I also love how your progression with your spud gun was the same as mine that I made when I was 15!! I've moved to pneumatic now and only shoot old socks at my cars with the kids. lol
@wafflepiepancake
@wafflepiepancake 7 лет назад
5:33 whoa for some reason that reminds me of a warp drive
@jacobtomlinson3261
@jacobtomlinson3261 7 лет назад
wafflepiepancake play to many video games
@wafflepiepancake
@wafflepiepancake 7 лет назад
Jacob Tomlinson maybe, but a lot (if not all) sci-fi shows feature a similar type of warp-drivey effect
@giin97
@giin97 7 лет назад
wafflepiepancake yeah, slow mo swirl of flames looks just like a warp core powering up right before the potato fires. Little to no movement, then suddenly speeds up.
@Malack2002
@Malack2002 7 лет назад
Ryan Gunn
@keltar2007
@keltar2007 8 лет назад
you should make a video on the glass droplets that are stronger than steel.
@younganexx5530
@younganexx5530 8 лет назад
He did
@Tensen01
@Tensen01 8 лет назад
Prince Rupert Drops, he did one, search for it.
@MoisesPadilla
@MoisesPadilla 8 лет назад
Sarcasm is strong with this one
@Aperson-sv2hc
@Aperson-sv2hc 8 лет назад
Make one without a tail? That might be interesting!
@BCGgaming1
@BCGgaming1 8 лет назад
+Robert Rowland glad someone knew what they are talking about
@stacyjordan632
@stacyjordan632 3 года назад
The pure joy on dustins face at 1:17 just made my day.
@justgopherit3454
@justgopherit3454 3 года назад
I love your laugh through all this.... like a kid in a candy store 😂😂😂
@bloatedwish2211
@bloatedwish2211 8 лет назад
the back flint combustion is not more efficient than the middle one, but the explosion from the back pushes all the unburnt fuel out of the barrel while the middle combustion gets the unburnt half to the blocked end to be stuck and thus burning after the tube reventilates.. this can show you how much fuel you are wasting on your experiment and you can use it to figure out what the optimum amount of fuel to use
@Truth974
@Truth974 8 лет назад
more like smarter every month
@MrErit23
@MrErit23 8 лет назад
Savage.
@JohanBrodd
@JohanBrodd 8 лет назад
It takes time to make these videos. Ofcourse he won't be able to do one per day.
@Elicio
@Elicio 8 лет назад
triggered
@audiogek
@audiogek 7 лет назад
Savage.....and funny!
@darrentibbils9271
@darrentibbils9271 7 лет назад
Schooled.
@janellehoney-badger6525
@janellehoney-badger6525 5 лет назад
I'm telling you, your videos should be shown in school science classes, they're that great, thanks again
@landrec2
@landrec2 3 года назад
The slow-mo audio effect is a nice touch, sounds cool.
@heanlygaming5408
@heanlygaming5408 7 лет назад
that psalm by the end. its refreshing to see someone who loves science and at the same time is conscious of his religion
@killerdalek
@killerdalek 7 лет назад
It's nicer to see people who don't have a religion!
@heanlygaming5408
@heanlygaming5408 7 лет назад
its certainly isnt new to see mentally handicapped people
@killerdalek
@killerdalek 7 лет назад
Heanly Hyral So just to be clear, which one of us are you saying is mentally ill?
@heanlygaming5408
@heanlygaming5408 7 лет назад
trolling while parading as someone religious is quite the facade. someone who's dense and is parading as someone smart is quite amusing
@energy_waves
@energy_waves 7 лет назад
+Heanly Hyral True. He's rude on purpose. No honor in that.
@largeleif
@largeleif 6 лет назад
Can you make a clear pulse jet engine?
@devenr6213
@devenr6213 5 лет назад
I made one a while ago, and it got ~1200 degrees so idk what he could use, mabye glass, or a one time plastic one
@cocospops9351
@cocospops9351 5 лет назад
He could make a pulse jet with a viewing window made from pyroceram glass (stove door glass). That'd be cool.
@user-ds9mx30j6a
@user-ds9mx30j6a 3 года назад
0:54 The giddy/maniacal laugh and elation on his face is priceless.
@cyborggold
@cyborggold 3 года назад
Destin... amazing footage! It looks like you're using hairspray as your fuel, try Axe body spray. The hairspray eventually builds up and makes your chamber sticky and the breach gets hard to take on and off. Axe has better results for me and leaves no residue. Thanks for everything you do, I love watching your videos with my daughter!
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