XL Soda Bottle Rocket Engines (Static Testing)

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NightHawkInLight

NightHawkInLight

Күн бұрын

Пікірлер: 790
@HydraulicPressChannel
@HydraulicPressChannel 4 жыл бұрын
I once glued and taped something like 5 of those bottle together for one monster 10 liter water rocket. I decide to test the thing with my 10 year old little brother (it was maybe 15 years ago) on our backyard. I was pressurizing the thing up to 8 bars with bicycle pump and maybe 4 meters long hose when it exploded around 5.5 bars. We both thought that it was the greatest thing ever but my mom was super angry since it was stupidly loud :D
@Nighthawkinlight
@Nighthawkinlight 4 жыл бұрын
Ha! I have a few old videos myself that end abruptly as my mom is heard shouting in the distance
@ladaishayork5260
@ladaishayork5260 3 жыл бұрын
@@Nighthawkinlight bxnbxh
@bubblezovlove7213
@bubblezovlove7213 3 жыл бұрын
Yeah Mom doesn't understand because she's a girl. That was a good result! LOL
@hamstsorkxxor
@hamstsorkxxor 3 жыл бұрын
Finding out that the HPC guy has been blowing stuff up since childhood is the least surprising surprise ever :D
@IstasPumaNevada
@IstasPumaNevada 3 жыл бұрын
@@bubblezovlove7213 Maybe someday you'll learn to stop trolling. :)
@i.g.noreme825
@i.g.noreme825 4 жыл бұрын
Wonder what the neighbours think when they hear laughter and explosions from your garage (Honey he's talking to the pvc pipes again)
@thethoughtemporium
@thethoughtemporium 4 жыл бұрын
That's some really awesome fluid dynamics and a great use of high speed footage! Great video
@bepeplia5086
@bepeplia5086 3 жыл бұрын
What happened to ur brain computer
@theharwizard8093
@theharwizard8093 4 жыл бұрын
You’re probably the only channel I know of that has stayed very consistently interesting with every video over the years. Keep them coming!
@Mrjoecreeper
@Mrjoecreeper 4 жыл бұрын
If only TKOR did the same
@KnowBigDeal
@KnowBigDeal 4 жыл бұрын
Search for The Thought Emporium
@theharwizard8093
@theharwizard8093 4 жыл бұрын
Mrjoecreeper Really gone downhill, I’m still subbed and the other day they just melted a bunch of deodorant. Like why
@rockaura1717
@rockaura1717 4 жыл бұрын
Mrjoecreeper dude grant died it could never (rest in peace grant :c)
@thorstenoerts
@thorstenoerts 4 жыл бұрын
Your laugh is like 60% evil genius. You'll get there.
@kaschberle6948
@kaschberle6948 4 жыл бұрын
the endboss will be Jörg Sprave
@onutaoyusao
@onutaoyusao 4 жыл бұрын
Hello and welcome to the Slingshot channel. AHAHAHAHA!!! Hope you liked it because that's it for today, thanks and bye-bye.
@EnjoyerofYoutube
@EnjoyerofYoutube 4 жыл бұрын
Ben is definitely 100% genius but probably only 20% evil
@crescentwind1032
@crescentwind1032 4 жыл бұрын
Watch his Running a Gasoline Engine on Firewood Video at around the 4:08 mark, that's pure Evil Laugh goodness right there.
@littleratblue
@littleratblue 4 жыл бұрын
I don't know if he's married but, if your wife hears that sort of laugh coming out of you, she's probably thinking of going somewhere else for a while to try and forget about the house burning down.
@KingJellyfishII
@KingJellyfishII 4 жыл бұрын
*G O O D G R A V Y*
@PraetzelProjects
@PraetzelProjects 4 жыл бұрын
😂
@randomsnow6510
@randomsnow6510 4 жыл бұрын
William Osmans thanksgiving be like.
@THESLlCK
@THESLlCK 4 жыл бұрын
1024 *THE GRAVY WAS GOOD AND YOU CANT DENY IT.*
@KingJellyfishII
@KingJellyfishII 4 жыл бұрын
@@THESLlCK *YOU ARE RIGHT. I LIKE A GOOD BIT OF GRAVY*
@THESLlCK
@THESLlCK 4 жыл бұрын
1024 I CONCUR, FOR THE GRAVY WAS OBJECTIVELY GOOD
@WarpedYT
@WarpedYT 4 жыл бұрын
Awesome man! The high speed was cool as sh*t!. Keep that character and energy up! That's what makes the videos do well, people can feel that energy!!
@614BlueBerry
@614BlueBerry 4 жыл бұрын
I didn't know I needed to k ow why dogs got up so fast until I seen your video. Thank you.
@kayvalencia2223
@kayvalencia2223 4 жыл бұрын
He beat ya to the see through rocket engine
@jeffvader811
@jeffvader811 4 жыл бұрын
Exhaust flow is subsonic, wonder if you could fit a de Laval nozzle on to get a bit more oomf out of it?
@coyotedomino
@coyotedomino 4 жыл бұрын
bobsagget823 asshole finds insulting others to boost their self-esteem, remains unintelligent
@jeffvader811
@jeffvader811 4 жыл бұрын
bobsagget823 Twat tells everyone they’re wasting time, spams comment section with poorly constructed insults for fun.
@captainheat2314
@captainheat2314 4 жыл бұрын
@@jeffvader811 Potato
@mikeishome69
@mikeishome69 4 жыл бұрын
For many a mere fraction of a second or so, it WAS supersonic!
@jeffvader811
@jeffvader811 4 жыл бұрын
Vit Apa It could hit Mach 1 if the flow was choked at the nozzle, but it can’t go over that unless it expanded afterwards.
@thesubmatrix
@thesubmatrix 4 жыл бұрын
These are some of the coolest slow motion shots I've seen too date and the shots demonstrate some really interesting things too. Thank you so much for sharing!
@Nono-hk3is
@Nono-hk3is 4 жыл бұрын
We've learned that packaging tape may be useful for ejecting stages in a multistage rocket.
@badsamaritan8223
@badsamaritan8223 2 жыл бұрын
I would very much like to see a multistage rocket built out of 2liter bottles.
@philipwebb960
@philipwebb960 4 жыл бұрын
Something is wrong here: you're having entirely too much fun.
@ahmdabdallah5811
@ahmdabdallah5811 4 жыл бұрын
What Is Islam? Islam is not just another religion. It is the same message preached by Moses, Jesus and Abraham. Islam literally means ‘submission to God’ and it teaches us to have a direct relationship with God. It reminds us that since God created us, no one should be worshipped except God alone. It also teaches that God is nothing like a human being or like anything that we can imagine. The concept of God is summarized in the Quran as: { “Say, He is God, the One. God, the Absolute. He does not give birth, nor was He born, and there is nothing like Him.”} (Quran 112:1-4) Becoming a Muslim is not turning your back to Jesus. Rather it’s going back to the original teachings of Jesus and obeying him
@aydenharper1085
@aydenharper1085 4 жыл бұрын
ahmd abdallah tf are you talking to
@THESLlCK
@THESLlCK 4 жыл бұрын
ahmd abdallah *Sure thing goat lover*
@graphenepixel8231
@graphenepixel8231 4 жыл бұрын
@@ahmdabdallah5811 I think the Holy Bible would be a good teaching for you. Quran is none of the 66 books in the Holy Bible .
@corison2058
@corison2058 4 жыл бұрын
Philip Webb incorrect! He is having exactly the right amount of fun!
@leviburton7616
@leviburton7616 4 жыл бұрын
Wow, it’s been a couple of years since I’ve consistently watched your content. Seeing this and your Starlite video makes me wonder why I stopped. Your videos have done wonders to keep alive the interest in STEM and the way things work alive in me. Thank you. Now I’m curious if something as simple as a rubber washer on the bottle launcher would keep the bottle where you want for the ignition point.
@jimfenno8833
@jimfenno8833 4 жыл бұрын
Place a pressure gauge in the wall of the bottle with a “tell tale” pin which will show the maximum pressure achieved during your various fuel to air ratios as well as with the differing points of ignition. Great video. Looks like loads of fun.
@crimsonhalo13
@crimsonhalo13 4 жыл бұрын
This video reminds me of the times I made potato cannons 'sing' by filling the chamber with a rich butane/air mixture, keeping the barrel empty, then hitting the ignition. The one that made the coolest sound was the straight-pipe cannon measuring about 4" dia x 72" long. Too much fuel in the mix = slow burn = loud, twangy, bassy howling.
@fireandcopper
@fireandcopper 4 жыл бұрын
The brighter and lighter the colour of the flame, (the blue flame front) the more stoichiometric the burn is
@WhiteShadows0
@WhiteShadows0 4 жыл бұрын
I'll be honest I'm enjoying this more because you seem really into the project and really happy. Also that's cool. And dw just add more tape. Anything can be fixed with more tape.
@z.a.c.hh.a.l.l5877
@z.a.c.hh.a.l.l5877 4 жыл бұрын
A couple of months ago I watched this video knowing literally nothing about rockets. like, absolutely nothing. But, I thought this was the coolest thing and I was determined to create a rocket engine. Soon enough, that goal changed into creating a full on rocket, and to get it into space. I started researching straight away, and I found another one of your videos on the hybrid rocket engine. I immediately started working on it, and It actually worked! Something you should know about me is that I never, and I mean NEVER finish projects. I always start them, but move on to something else. So for me to build a working rocket engine, that’s a huge achievement. I started doing more research, and I started looking at liquid fueled rocket engines. I started learning about things like the turbines, oxidizers, fuel pumps, injectors, over/under expansion, and a lot more. I am now currently working on a liquid fueled rocket engine, and it’s going great! I owe it all to u. My goal right now is to start my own rocket company, like SpaceX. I know it sounds crazy, but I’m working at it. It’s weird to think that all of this never would’ve happened if you didn’t make this video, so I just want to thank you for making my dreams come true.
@Advoko
@Advoko 4 жыл бұрын
Ahhh, loved those slow-motion shots!
@mastermachineman1462
@mastermachineman1462 4 жыл бұрын
The reason it burn faster when at the back of the botle is because the fire starts all the way back in the pvc pipe, the air fuel mixture is accelerated into the botle at speed before full ignition, causing turbulence. (Similar to how a diesel engine with a precombustion chamber works)
@kazsmaz
@kazsmaz 4 жыл бұрын
I've been making potato cannons for ages with that technique. Tape works brilliantly, but to get them to last a long time you want to make sure the direction of flow won't be going under the seam.
@kazsmaz
@kazsmaz 4 жыл бұрын
(videos on my channel of them btw)
@USWaterRockets
@USWaterRockets 4 жыл бұрын
Awesome video. I love the slow motion, it really shows what's happening. Also, thanks for plugging my tutorial!
@kengamble8595
@kengamble8595 4 жыл бұрын
The slow motion cameras have sure changed the way we look at so many things ! Highly entertaining ! 😊 Thanks for sharing and take care. 👍
@unlokia
@unlokia 4 жыл бұрын
Mate, you're 100,000,000,000 ^ 100,000,000,000 more competent, experienced, interesting and humble than the majority of so-called, self-professed "science" channels on YT. Same applies to Destin @ Smarter :)
@haidandurham8630
@haidandurham8630 4 жыл бұрын
Glad to see you're posting again!
@AleksUsovich
@AleksUsovich 4 жыл бұрын
I've learned more in this 20 minute video about science than I have in 4 years of high school and 2 years of college! Really loving the videos lately! Keep up the great work!
@romkedeboer7378
@romkedeboer7378 4 жыл бұрын
I finally got a notification from youtube again and started watching your older videos as well. I got the idea: can you do this with wood gas as well? It'd be really fun to see some of your projects combined!
@TienAnta
@TienAnta 4 жыл бұрын
I love seeing you get excited with each result. Such genuine happiness in your work. Keep it up! One safety tip I’d give is have an old table cloth or towel hung in the path the projectile is flying so it will hit that vs the wall. That should distribute the energy so the object will be less likely to bounce back at you.
@reaganharder1480
@reaganharder1480 4 жыл бұрын
Table cloth might be a bit too light.
@Labrat009
@Labrat009 4 жыл бұрын
do you reckon you could make a baffles in the bottle while keeping it see through so you can demonstrate how a firearm suppressor works? It would be quite difficult but it would be awesome high speed footage
@TestyMcTesterson
@TestyMcTesterson 4 жыл бұрын
Check out smartereveryday he did that a while back actually
@bamajoe411
@bamajoe411 4 жыл бұрын
“More on that later”? I had to double check I wasn’t watching a Practical Engineering video.
@The_Balrogg
@The_Balrogg 4 жыл бұрын
Your adrenaline fuelled laugh got my miserable fizog to grin like a Xmas day child unwrapping prezzies. Thank you. Oh, the science stuff (witchcraft) was interesting too!
@jonathanfeller
@jonathanfeller 4 жыл бұрын
I've been watching you for years, and everytime I get a notification, I can't wait to get home and watch them! Great content!
@jasonpatterson8091
@jasonpatterson8091 4 жыл бұрын
I launch isopropyl alcohol fueled bottles in my chemistry classes - the lid from a Propel "fitness water" bottle is a perfect rocket nozzle. I don't know if it would cause overpressure in your system or not, but in a smaller bottle with alcohol instead of propane it's a significant difference.
@rays5163
@rays5163 4 жыл бұрын
I remember that smartereveryday dude did some ignition tests to analyze the shockwave but it was for a potato cannon instead of a rocket. Still, it might be useful to compare notes
@akashmukherjee2405
@akashmukherjee2405 4 жыл бұрын
Brother, your videos are really unique and slow motion is seriously satisfying. Greatly educational
@amyshaw893
@amyshaw893 4 жыл бұрын
wow, that colour on the second flame is beautiful. the one that goes back into the bottle again. The initial cyan flame is pretty nice too
@electronicsNmore
@electronicsNmore 4 жыл бұрын
Cool experiment! The high speed footage was really good. Beautiful colors. I'll take same mashed potatoes with that gravy. 😄
@tom_something
@tom_something 4 жыл бұрын
This video has a lot more of you speaking in real time rather than narrating in post. Your delivery sounds really natural this way.
@revenevan11
@revenevan11 4 жыл бұрын
A couple years back I built a propane torch pop gun based on your project. I used it as a prop for my Tusken Raider Halloween costume, and it's pretty much the only diy science project I had seen all the way through in a long time. Looks like I need to get back into this stuff again, thanks for making videos!
@engineersfreetime4036
@engineersfreetime4036 4 жыл бұрын
First 19 minute KZbin Video I haven't skipped forward on...So entertaining!
@ShobhitVashistha
@ShobhitVashistha 4 жыл бұрын
You are so giddy in this video, it is obvious that you love this, also your excitement is quite contagious. Great work as always
@welkinator
@welkinator 4 жыл бұрын
Famous last words, "I did not mean to hit the trigger..."
@DownloadedPixelz
@DownloadedPixelz 4 жыл бұрын
What I love most about this video is how you are so much more candid and genuine. It's like seeing the real you and excitement
@iEnergySupply
@iEnergySupply 4 жыл бұрын
I absolutely love how much you can learn with tests like this and a good high speed camera! Thank you!
@Leonardokite
@Leonardokite 4 жыл бұрын
Absolutely love your videos. That slo-mo was awesome! The flame front and jet out the nozzle was super cool. Thanks!
@curtisjordan9210
@curtisjordan9210 4 жыл бұрын
explosions make me happy too, keep up the good work! :)
@ojsojs246
@ojsojs246 4 жыл бұрын
this was beautiful. fire, explosions, theoretical uses in extreme hobby bottle rocketry... also, i've never seen him so giddy before, a nice change of pace.
@FretAndForget
@FretAndForget 4 жыл бұрын
The best youtube videos are made when the youtuber is enjoying what they re doing in the video. This is one of those times! great video!
@pewpandagamermom
@pewpandagamermom 4 жыл бұрын
Thanks for the link from your sponsor. Seriously, I was searching for a good idea for Christmas, and this is going in the list! Also, I love this video!
@BrandonGraham
@BrandonGraham 4 жыл бұрын
I'd like to see this on one of those weird 3 liter bottles.
@addfuture
@addfuture 4 жыл бұрын
Love these videos, especially when seeing your genuine excitement to things you find cool!
@davidbumpus3457
@davidbumpus3457 4 жыл бұрын
Pretty fire! I'm not going to play with LP Gas and soda bottles in my back yard, but the way the flames move in the slow motion shots is really cool.
@gabrielhacecosas
@gabrielhacecosas 4 жыл бұрын
Thrust tests and thrust graphs with the 3 configurations please. 😳😳 I love your videosI 😍
@derschwartzadder
@derschwartzadder 4 жыл бұрын
I know, right?
@liambrown699
@liambrown699 4 жыл бұрын
I love that there's not too long of an intro. Thanks for keeping it interesting.
@bloodbound696
@bloodbound696 4 жыл бұрын
@NightHawkInLight my name is Gonzalo, I actually used one of your rocket launcher mortar videos and used it for a project for my engineering class back in high school. Best believe we got an A so I thank you. Just know we could bring it to school but not fire it obviously. We had recorded a video and shocked the class in awe with a frozen frame where it looks like a bright yellow Christmas tree like fire was coming out the end of the launcher. My engineering partner and I decided to visually advertise it as a rocket launcher from the shoulder rather than a mortar. We wanted to add a strap but that never happened which is okay because It was still awesome enough shooting it without the strap on the shoulder with its military green color and red button from the barbecue igniter we bought from the internet. In investing extra time even after the project back in high school I wanted to improve it and make it more powerful and did a lot of tests. I have tried different isopropyl alcohol percentages and the highest I found was around 70+%. I noticed the higher the percentage was the easier it was to set it off. I slowly perfected a method to introduce the vapors of the liquid and I also tried different bottles, smoother ones.. I want to one day maybe add fins with the limited space I had, perhaps make a fin mechanism inspired by ballistic missiles and rockets shot from different military rocket launchers like the famous RPG or the AT4. I found the best results for the "bottle rockets" is to get the biggest one that can fit in the launcher with a smooth outside layer with no ridges for hand grip for less drag and the static short circuit as back in the bottle as possible had best results. Now because of your launcher back in that video, its been pretty slow right now but I'm trying to develop an actual air-soft rocket launcher that is simulates a real one but still being safe enough for the sport. I found a void for that market because all the launchers for sale at the moment use basically a small nerf football that or a clump of bb's flying into one spot. So i have come up with a couple designs in theory that should work. I don't care who patents or gets it on the market first. The air-soft sport deserves better simulation and the launchers today are not very good. In regards to this I had called some of my old engineering class friends to help me on the project as well in an effort to create something feasible, some of the ideas seemed promising and some new ignition ideas that would function from the inside of a bottle rocket or eventually an air-soft rocket using the one we had created back in high school as a base to demo or showcase where or how our different ideas would be applied. I love rocketry and explosions and to be honest you were a big influencer of that when i first saw that video, from a science loving perspective obviously but I wont lie i'm kind of a pyro-maniac. Thank you for the videos you make they are very cool and keep doing what your doing. Yours truly - some guy who got an A+ using one of your mortar video tutorials. Much love
@aSinisterKiid
@aSinisterKiid 4 жыл бұрын
The ignition point being at the very end of the bottle and the highly vigorous ignition shows precisely why gun barrels work so well and why bullet casings are designed the way they are with their primers.
@youngbloodbear9662
@youngbloodbear9662 4 жыл бұрын
Drill 2-4 small holes down on the pvc pipe where the front of the bottle will be when the pipe is inserted, much like a primer when you pull the trigger the first two jets of flame will come out at the front, later ignition in the back may have other interesting effects
@FretAndForget
@FretAndForget 4 жыл бұрын
The color of the flames are beautiful!
@grantmccollum4499
@grantmccollum4499 4 жыл бұрын
Great experiment and slow motion footage. Thank you for continuing to put out interesting and quality videos. Your channel is only one of three I have the bell clicked on. The other two are Lil Bub and The Wolfe Pit. I’m always happy when I see you uploaded something. I’m checking out the sponsor of this video to support your efforts, being the holiday season I’m buying something for certain.
@adamhutchinson4148
@adamhutchinson4148 4 жыл бұрын
As a fellow scientist i love watching your process! very well done and methodical!
@HHIMgary
@HHIMgary 3 жыл бұрын
That is really cool! I like seeing how the flame burns. I got the ideal of demonstrating how a pulse jet works with clear plastic like that. Of course it wouldn't run long before melt down but you could get some footage for a second that shows how the flame works and the controlled explosion keeps the engine running. That would be great.
@celanis7164
@celanis7164 4 жыл бұрын
The amount of energy inside the rocket is what matters. So a pressurized or larger rocket would have the potential of flying further. A heavy lift vehicle would actually prefer to have a stronger burn off the pad with a more consistent burn afterwards. But for small bottles it hardly matters. I would go for the stable burn any day because less chance to RUD. Additional idea: A small bottle with the nozzle glued inside the nozzle of a larger bottle, with the bottom cut out of the small bottle. Ignition point at nozzle of smaller bottle - the part that would warm up is actually cooled by the fuel on the other side inside the larger bottle - so the rocket might wear less. Just a thought and potential experiment. If launching vertically, you could even have a small bath of water in the larger bottle around the nozzle of the smaller bottle as a heatsink. Be safe. Rapid exploding gasses can be crazy dangerous, and you don't seem to wear much protection but some glasses. You might want to consider doing some of these larger tests in open ground with a bit more distance and less objects that can harm you. Also try sticking some red wire to the plug or tether it so it doesn't get lost every flight :p Awesome footage! :D
@Namesi
@Namesi 4 жыл бұрын
The teal color of that flame slowly turning to purple as it leaves the bottle is gorgeous - very Miami Vice ;)))
@AliSot2000
@AliSot2000 4 жыл бұрын
These fire colors are absolutely beautiful!
@acceler9
@acceler9 4 жыл бұрын
The colors at 17:44 are simply stunning! Most excellent video!
@HouseholdDog
@HouseholdDog Жыл бұрын
My dad worked in rocketry. He said that one thing they had to design around was a sort of standing sonic boom wave. It tended to increase the pressure and blow the rocket apart.
@redcastlefan
@redcastlefan 4 жыл бұрын
That smile of yours that always shows when you are doing something you like is worth more than a million bucks.
@gearsNtools
@gearsNtools 4 жыл бұрын
great work man! I just discovered your channel and don't know how I haven't stumbled across it before, keep it up!
@hvheerden
@hvheerden 4 жыл бұрын
Excellent! Your true joy and excitement is contagious.
@GiacoWhatever
@GiacoWhatever 4 жыл бұрын
This is so much fun!!!!!!
@wimwiddershins
@wimwiddershins 4 жыл бұрын
The flame front is a beautiful thing. I can't wait to see one of these fly.
@Freizeitflugsphaere
@Freizeitflugsphaere 4 жыл бұрын
Nice shots! Amazing! 👍🏼😃
@runforitman
@runforitman 4 жыл бұрын
Electric ignition maybe worth looking into so you can have the ignition point separate to the end of the tube Use pipe with a thinner inner diameter but same outer Carve a little spot for the electrodes in, down the bottom And put them in wires could go through the inside of the gas tube
@Flederratte
@Flederratte 4 жыл бұрын
Great video! Looks like you had fun :) As a long time subscriber I realize all your videos are with great content over a wide spectrum. I like what you upload very much. Looking forward to the next video.
@dawnofjustice4689
@dawnofjustice4689 4 жыл бұрын
You are more active now and I really like that 😁
@ChaosPootato
@ChaosPootato 4 жыл бұрын
It's funny how you're mostly composed and calm, but in this one you can feel the excitement :D It's great!
@18mtoo
@18mtoo 4 жыл бұрын
The world is more fun to be in when we get shown how to do things like this! One thing about the flame propagation is that (I think) it is starting at the torch not the tube opening and hence is pushing the mixture down the white tube. When the flame exits is it a) moving towards the open end; b) expanding in a pop. Could you film more tests putting the spark inside the bottle just for fun and thoroughness. I'd also love to see different payloads on the top of your rockets like strobing LEDs, a teddy bear, parachutes, Tinkerbell, St John the Gawper (patron saint of flying). Most of all, keep on doing this wonderful stuff.
@EnfermeiroPensador
@EnfermeiroPensador 3 жыл бұрын
You can tape aluminum foil along the sides of the bottle and bring them close to the nozzle then discharge some big capacitors to create the spark for ignition.
@johnhealy2768
@johnhealy2768 2 жыл бұрын
Loved the presentation,but I think if you install a good ground wire to the pipe at the input end,this would give the energy a direction of flow as the magnet travels down the pipe in the opposite direction.It must be generating some energy it just needs to be directed. Just a thought.
@MeisterDerMacht
@MeisterDerMacht 4 жыл бұрын
It really makes me happy seeing you having so much fun in your video! :)
@jolank
@jolank 4 жыл бұрын
6:49 - the reason you see the flame rotate is because after the plug exits the bottle, the bottle jumps upwards and the air flowing in through the intake tube doesn't flow straight anymore but is tilted towards the bottom of the bottle which causes the whole content of the bottle to swirl. It's definitely not the gas temperature difference - that would be a very slow process and there just isn't enough time for that to have noticeable effect.
@Nuovoswiss
@Nuovoswiss 4 жыл бұрын
Awesome! I'd be curious to see how the burn exhaust plume and thrust change with some types of nozzles.
@colinstu
@colinstu 4 жыл бұрын
Aww no bird snuggles at the end.
@jaycobwhaley5509
@jaycobwhaley5509 4 жыл бұрын
Thank you so much for the absolute joy you have brought me through the years ☺️ you are one of the reasons I am who I am today! Keep on experimenting!!
@ComradePhoenix
@ComradePhoenix 4 жыл бұрын
"So anyways, I just started blastin." --Nighthawk off camera, probably.
@maggiorenne1
@maggiorenne1 4 жыл бұрын
To adapt it to the launcher you could cap the end of the PVC pipe and put holes close to where the bottle "nozzle" would be, it would achieve the goal of placing the ignition point closer to the nozzle but has the downside of requiring a drill or a method to put holes on the PVC pipe for the end user
@candyman2bad
@candyman2bad 4 жыл бұрын
I just love your genuine enthusiasm and love for what you do and for science an exploration. P.S would love to see you collaborate with The slow Mo guys
@rocknraptor3195
@rocknraptor3195 3 жыл бұрын
14:42 now that was what I was waiting on 💥💥👍
@danielchandler4764
@danielchandler4764 4 жыл бұрын
If you are able to wire the igniter terminals inside the end of the charge tube, you should be able to slide the bottle to the correct depth and ignite from the right spot
@l.merbecks8144
@l.merbecks8144 4 жыл бұрын
10:40 Ah ah ah! It does show something: You made a one pulse pulsejet.
@arijitdas2319
@arijitdas2319 3 жыл бұрын
Yellow flames in the end indicate incomplete combustion, put a small nozzle with a lesser aperture at the back of the bottle with a one way valve. Then see the increase in efficiency of the burn.
@dashankannan
@dashankannan 4 жыл бұрын
plasma really is bloody fascinating
@Uncle_Buzz
@Uncle_Buzz 4 жыл бұрын
Ben having way too much fun. Your giggling is awesome.
@the_socompsp
@the_socompsp 3 жыл бұрын
the air and fuel are mixing in the torch nozzle, if you push the tube past/over the holes on the torch nozzle it will be pure propane.
@Renmusxd
@Renmusxd 4 жыл бұрын
When this bottle is in flight there will be acceleration which pulls the gas towards the nozzle (or rather the bottle moves and leaves the gas behind, closer to the nozzle), that could change the front-to-back burn a bit as well by "feeding" gas to the burn position.
@adg1017
@adg1017 4 жыл бұрын
That footage is GORGEOUS!
@ClokworkGremlin
@ClokworkGremlin 4 жыл бұрын
Making predictions, observations, recording your experiments, and taking notes? Actual science.
@qwertyytre9460
@qwertyytre9460 2 жыл бұрын
Spray bottle. The top cover is removed. A 1 mm hole is made in the bottom A piece of calcium carbide is placed inside the balloon and spit on it several times. We close the exit openings of the balloon with our palms. And then we bring the flame from the lighter, matches to the rear (small) hole. BOOM! Cotton ! Loud enough.
@nfmeyer1352
@nfmeyer1352 4 жыл бұрын
LOVE the videos! Please keep them coming 🙏. Just a thought, in my younger years I experimented with rockets of varied fuels and discovered early on that a stungun makes a efficient and reliable ignition source. Now you can get cheaper electric ignitors for barbeque grills. I attached wires to the contacts with RTV silicon to insulate everything and routed small wires from inside the combustion chamber (obviously). You could wire the launch pipe where the opening of the bottle rests instead of using the torch igniter. Anyways, thank you for the highly entertaining and educational videos. I'm off to check out the Mel science kits for my granddaughter. Her school isn't prioritizing the S, T or E of S.T.E.M. in their first iteration of distance learning during the Covid-19 crisis.
@kofel94
@kofel94 4 жыл бұрын
Maybe i just can't see them, but please don't forget to wear hearing protection. Love your vids!
@AirCommandRockets
@AirCommandRockets 4 жыл бұрын
Very interesting! Love the slow motion video. :) Keep up the great work!
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