DIY Rocket Engines - Easy and Cheap!

[@acf2802]

Drones, crowd suppression devices, explosives, rockets. This guy is planning something big.

[@QuippersUnited]

I think he's personally planning on watering the tree, if you catch my drift. XD

[@skm9420]

@@QuippersUnited he's a libertarian, I haven't gotten a direct answer but he hearted a comment that i wrote saying I think he's a libertarian. So he's just putting information out that we all deserve and where that goes it goes.

[@QuippersUnited]

@@skm9420 I'm not surprised. Anyone who makes his own air conditioner doesn't need, or want, help from anybody.

[@downstream0114]

Don't forget the -getaway boat- yacht.

[@acf2802]

@@downstream0114 If you are going to launch a doomsday device it needs to be from international waters.

[@Dragonasce]

I would have paid to have a teacher like him in high school. An hour long video that seemed like 10 min. Thank you for your hard work!

[@atillanayman]

Indeed same feelings, such easy introduction and very interesting!

[@jakejacob9814]

hes our new mr wizard loved that show as a child, when i thought as a child, acted a child. since becoming a man ive had to put away childish thing. tech ingredients fills the spot perfectly

[@mrt2this607]

At mine, high school, in the 80's & early 90's they taught some of these ways chems can be used. No more, just that America is an evil country & it should be hated. Very anti-commie back then too. Now they're top professors at many universities & even sooner. Not too pleased or optimistic about were we'll end up if this socialism/communism popularity continues and isn't countered with how America is quite awesome . But these schools, constantly teaching our own children to hate America and only look at the bad things that happened. Not gonna be a recipe for survival

[@soaringbob]

I had such a teacher back in HS. I don't remember the reason, but in class he created a little NI₃ to spread out in the hallway. You know, that fun stuff made by soaking iodine crystals with household ammonia! DON'T try this at home if you know nothing about it. He disappeared from the school's faculty the following year, and a couple of years later I was working as a grocery bagger in the local market while he was a shelf stocker! The owner of the market sat on the school board that probably had something to do with deciding his career change!

[@bobs12andahalf2]

Absolutely amazing how he keeps the presentation coherent without pauses or edits

[@decryptmars]

"Well, I wanted to find a better way to find and remove a splinter from my finger. After some research we decided to build our own MRI chamber, so I started to do research on it and it turns out that to generate magnetic resonance images you also need so-called Perchlorates, which is a chemical compound also found in the surface of Mars in rather large quantities. So we turned our anechoic chamber into an interplanetary spaceship. And that‘s why we launched a colony on Mars so I could take an MRI of my finger, which altogether is also cheaper than your regular MRI facilitated by the US health care system."

[@TechIngredients]

We found the same problems and just bought one on Amazon.

[@Kenionatus]

@@TechIngredients The spaceship or the finger?

[@jamesmorton7881]

Hey, and no a ands duhs or buts, he is smooth and knows his sciences, and engineers, and math and physics. So a good learning, and i can skip doing it myself. or

[@penguiin12]

@@Kenionatus yes

[@Uncle-Duncan-Shack]

I have just come back from Mars, the big problem was getting the stuff past customs on returning, that cost more than the fuel and meal service during the journey.

[@lambdaprog]

Probably the most intuitive introduction to practical rocket science one could find online.

[@soaringbob]

Want a much more detailed explanation of solid fuel rockets: kzbin.info/www/bejne/oHK3nIlufaplqbM

[@bencoman]

Watched it. its not a detailed explanation at all. Just a consumer news service level record of a test day for SLS Solid Booster. The only part I found interesting was the 2 minutes showing the geometry of the grain port... kzbin.info/www/bejne/oHK3nIlufaplqbM

[@soaringbob]

@@bencoman I found it to be laced with design tidbits throughout, but no, it is not a how to build your own with blueprints and fuel formulae. If all other viewers are interested in watching is the lighting of the candle, here is a much shorter video: kzbin.info/www/bejne/e2TGgX6de7CYZrs

[@lambdaprog]

@@bencoman What part of "intuitive", "introduction" and "practical" you don't understand? I can help.

[@kittyxduwu8090]

I’m almost 50 years old and it’s amazing how you have inspired me to take up chemistry as a hobby now at this stage in my life. Thank you and please keep them coming.

[@TechIngredients]

Great! Will do.

[@johndoppleguard]

Kitty 27 Tina Marie?😍cheesedi#k never even came close. M.f.

[@neail5466]

KZbin algorithms may not prefer your super detailed longer videos, but we do, thank you for putting us ahead. Respect..🙏

[@sixstringedthing]

First recommendation of this channel for me, the algorithm has been sleeping on the job. Within two minutes I'm thinking "why am I not already subscribed to this guy?" Then he puts emphasis on safety, then he mentions Scott Manley. *C'MON KZbin, YOU HAD ONE JOB* Anyway, subbed. Thanks.

[@sheldoniusRex]

He has also made moonshine, speakers, a boat, drones, an anechoic chamber, and military grade smoke bombs. Next up is a magnetohydrodynamic drive nuclear powered ballistic missile submarine he will sail up a river in Maine.

[@chrisreaney1980]

Same story for me too!

[@nicewhenearnedrudemostlyel489]

I found it when i searched for specific educational content that he had done. Maybe try... looking? Lol.

[@sixstringedthing]

@@sheldoniusRex Nice reference. ;) Some people have Die Hard as a Christmas movie but for some reason I always find myself watching that one instead.

[@sixstringedthing]

@@nicewhenearnedrudemostlyel489 I understand how search works. The point is that based on my existing subs and watch history, KZbin's recommendation algorithm should have been pushing this content at me years ago but for some reason I've never seen this channel pop up until now.

[@marcdraco2189]

This channel has to be the best for us slightly unhinged nerds and geeks who just love to experiment. I've even done some of this stuff myself, but nowhere near as well! He's like the dad we all wanted growing up.

[@mbrew3244]

Is it too late to be adopted?

[@marcdraco2189]

@@mbrew3244 :) :) :) :)

[@Ryknfjor]

Not just nerds....

[@marcdraco2189]

@@Ryknfjor :)

[@memirandawong]

LOL "Unhinged" is definitely a prerequisite for this activity!

[@Jim-hk6rd]

As a Veteran Air Force Rocket Fuel Handler I found this video really fun to watch. I used to work with UMDH hydrazine and N2O4 nitrogen tetroxide. These were extremely dangerous and poisonous chemicals that we worked with in amounts in the tens of thousands of gallons. I would love to spend a day in this guys garage.

[@bkb0859]

I salute you, Air Force Veteran too. Love to get ahold of some jp4 if I remember right, in Duluth back in 78 - 82.

[@arturoeugster7228]

unsymmetrical dimethyl hydrazine, yer mean. Titan launch vehicles! Old Martin Marietta in Watertown, Colo.

[@JohnDolschenko]

@@arturoeugster7228 2151s Comm squadron in support of the 308 Missile wing Arkansas. I spent more time on site during defueling's and refueling than I would like to remember...... With everybody else in primitive "space suits". Keep an eye on that weather vien, so you knew which way to run. I think 1/2 of those Old Titan II would blow up in the hole if they tried to launch them. Using them for sat launch vehicles proved me correct.

[@protosfotod2416]

He probably would not, given that whole your live you were a dangerouse order follower.

[@FranQieTrois]

I'm reasonably certain that I could follow your meticulous instruction over a radio...you're BRILLIANT at how you convey your subject matter! Thank you!

[@BigHonkinGoose]

I do actually listen to his videos while I'm driving or working.

[@disorganizedorg]

Awesome communicator. He ought to be a High School science teacher to inspire the next generation of engineers.

[@TorkelSaurus]

I absolutely love this mans channel. I can watch it on fast forward and catch every word because he speaks so eloquently; covering every step and bit of information with such a flow.

[@strangelove9608]

@@disorganizedorg How about president 8) I'd vote.

[@Coincidence_Theorist]

Nice 🪐-Saturn-🪐 imagery in your opening sequence logo -Tech Ingredients-. For any curious its the image of the Hard drive inner disc with ring imagery. 💽. Nice to know. .

[@joshuagibson2520]

No BS with this channel. All business. I respect that a lot. Thank you for the excellent content.

[@gvii]

I'm going to go out on a limb here and say you're probably on a first name basis with your local ATF agent. I'm kidding, of course. But I do hope you hit that last 5k before the New Year. I can only imagine the amount of work that goes into this channel, but I can definitely say it shows. It is far and away, one of the very best of its kind on here.

[@TechIngredients]

Thanks!

[@sturnus111]

@@TechIngredients You're our 'Person of the Year'. photos.app.goo.gl/VuvEyBhq5BnLtPqR7

[@fu6461]

We all know he is lol. His name is mentioned at fletc. So I'd say yeah. Fun fact... 😁

[@TheConstantComet]

@@fu6461 seriously? That's pretty rad. Hopefully they like watching for the science and high production value rather than looking for a chance to "gotcha".

[@fu6461]

@@TheConstantComet yes. It is very educational content. Better than any university class 😄. Gotcha is whatthey are designed for. Those people have no heart or intelectual interest, they say ir act as if they did but the reality is not the same. Sad but true reality. That's what 🇺🇸 has become, a fear based community. Hopefully one day everyone will just get along and leave each other alone.

[@GielL96]

This video was the same density of information as my university lectures have, except the topic is really interesting so watching through a whole hour is done with little effort. Kudos to you and your team!

[@BigParadox]

I watched this on Christmas Eve, and here in Sweden we give the gifts on this day, and this video was like a real good christmas gift. I was like a kid, "yes, yes, rockets! Yippie!!".

[@pressgurkan]

I agree. Thank you from Sweden.

[@typxxilps]

I have to agree twice cause in Germany chrismas eve is the night that counts - for adults and children. And same for the video that I had seen in the hour it appeared and loved the progress and evolution in all details. Spend the whole video to make sure to understand the big points. But a lot of people will run in trouble here due to the chemistry if you order too much and online cause what is great to power a rocket is also great for a bomb and we had a swedish guy buying ingredients online due to his hope swedish restrictions would end at the border. But seem to be EU regulations behind a curtain that kicked the trigger.

[@ajgallego2409]

Always a good day when tech ingredients makes a new video!

[@jetkingknight]

"it's nice to know you could" I loved that comment

[@C2welder]

That attitude is why i come back even if I’m not ever going to do this.

[@bwiltse2620]

Having made rocket motors that large - yes, they're awesome, but also a little scary haha.

[@mavos1211]

It was the smile that accompanied the comment that made me laugh!

[@norvillerodgersspeaks]

Nevermind then

[@jaymzx0]

@@norvillerodgersspeaks Blackrock desert. It's a site a lot of amateur rocket enthusiasts visit.

[@b.elzebub9252]

I can't believe this video is more than an hour long.. It felt like ten minutes the way it just sucks up your attention. Absolutely amazing quality! If chemistry classes were like this in my high school I would have been a chemist right now.

[@skm9420]

I appreciate yours and your son's enthusiasm in your projects and dedication to completeness.

[@ayuse01]

Very rarely can someone captivate my attention for so long ( i normally realize that they actually know less then i do lol ) but you sir are a different animal. I like your broad knowledge and the way you have to clearly communicate it. We feel your passion, and it shows in your videos. Thanks you so much and Merry Christmas to you too!! Looking forward to see the motors thrust test result!

[@skm9420]

Yeah, I don't watch KZbin to learn from myself.

[@RobertGee-oi9ww]

I agree with your comment.

[@ninline2000]

This man was a born instructor. To make such a dry subject interesting and informative at the same time is a talent few people possess.

[@thiesenf]

He should do a colab with Tim Dodd...

[@satyris410]

Have you watched John Dobson build a telescope from scratch, grinding down a piece of glass by hand. The video is here on KZbin and well worth a watch, kzbin.info/www/bejne/qZ_daH2AobiNrNk

[@Joeybagofdonuts76]

He's definitely knowledgeable, but drying paint would be more exciting. I watch because of the information given.

[@ninline2000]

@@satyris410 Thanks for the link.

[@billybull7419]

@Ivan Jakanov Its literally rocket science

[@seanhoude]

Had fun with Estes rockets as a kid and later got my daughter into it as well, but my dad always used to say that he refilled his own rocket engines back in the day. Finally got to see what's involved. Thanks much.

[@SoumilSahu]

First video I've seen from this channel. You're an incredible speaker. I can't quite describe it, but the way you've essentially spoken for an hour straight without too many cuts and in such an engaging, easy to understand manner is amazing

[@AshutoshPathak]

When we were growing up, imagine if we had access to teachers like him. How many more of us would have ended up as scientists.

[@ledumpsterfire6474]

I did. Obviously he couldn't get into anything this dangerous, but he was extremely hands on and already pushed the boundaries of what the school would tolerate a bit. Honestly they probably would've nixed him if they thought they could find a competent replacement, but that area was notoriously stupid.

[@JoeWayne84]

Yeah the people in power who control the educational system don’t want a bunch of smart people haha that’s like there worst nightmare

[@robertbernard595]

Dude I’d be able to build a fission reactor out of grass and portal ray gun that’s a wearable like watch for the consumer market by now if he was my science teach .

[@Will-ql5db]

Yeah, but given that he's a white male, the "woke" cult driving our cultural norms would have considered him as evidence of racism & "toxic masculinity", and fired him for someone who is far less competent at teaching/inspiring students, for the sake of "diversity".

[@mdemers767]

Bill Entley. Best teacher in my entire academic career. Taught high school physics, and you could tell he actually cared about making you LEARN something and not just giving you a grade. You could also tell he was one of those kind of people who was so smart it was kind of scary. And also funny as hell. And ugly as a can of smashed assholes.

[@Airdown]

Always appreciate when someone way way smarter than you decides to take the time and care to teach, simply because they want to share the exciting things they know with you.

[@johndoppleguard]

Weak

[@engineer9975]

This was phenomenal. The camera zoom and focus were great. This was an extremely professional video and incredibly informative!

[@Ratkill]

One of the few creators that gets an automatic like before I even watch the vid. Huge amount of respect for this channel.

[@HomeGrownPyrotechnics]

when ever I see videos of someone who is quite big on youtube trying to make sugar rocket motors, they tend to make a lot of mistakes or just have poor methods. you pretty much nailed everything. only thing i can say is give tips for improvements. you can use a few drops of sodium laureth sulphate/ SLES (the surfactant in shampoo and soaps) to thin the fuel as much as possible. Richard Nakka has a video detailing its use. You may also want to try making a reusable motor out of metal. this will allow you to only need to make fuel grains for each firing. With regards to storage, its best to store it in an air tight container with desiccant to keep the fuel dry otherwise it will pull moisture. the only fuel I've ever used that just does not pull moisture uses erythritol. Another thing is that fuel with iron oxide in it does not store long term, it does something to it that causes the motor to always explode. anyways. good video

[@HomeGrownPyrotechnics]

@NC Dave different type of motor.also thats the worst way to make a rocket motor

[@mojaverockets]

using fuse to ignite 'and run' from any experimental rocket motor is flirting with danger and how many are injured/killed

[@en2oh]

@@mojaverockets I'd be tempted to make a core alignment jig. The reliability of these engines is contingent on many things. One of which is the reproducibility of the core. Simply jamming it into the molten mix will, eventually lead to a CATO of the engine at worst, at best unreliable motors. Also, it would have been nice to weigh the test composites to at least increase the chances of comparing apples to apples :) Anyway, always enjoy your work. Stay Safe and Stay Well.

[@KAYLEBHD]

@NC Dave just because your big on KZbin doesn’t make what your doing safe

[@pieandpeas8929]

It's not often a video of this length keeps my attention without skipping bits, but I watched every second of it. This is quality. Thank you.

[@IFaTaLiTyl]

Wow, this video was outstanding! Thank you so much for teaching us in such a great way. I love your meticulous explanations, your care in showing us every detail of the process, and your eloquency. Greetings from Germany :)

[@prestonburton8504]

sweeeet! he is pretty amazing!

[@smashingwatermelons7926]

What material is the pipe made of, if you wanted homemade one?

[@NotGovernor]

Thank you for making that one video instead of a five-part series of tiny clips released one a day to extract the most views possible. You get my sub!

[@PatrickKQ4HBD]

I love that you said to use a vacuum when machining the graphite nozzle and immediately thought to specify "vacuum cleaner". Because this is EXACTLY the kind of channel where we might see exotic vacuum machining processes being applied!!! You guys rock.

[@joncollier1934]

I just found your channel today and can I say, it's refreshing to see a person of science describing these techniques. I found dozens upon dozens of videos I will be watching and liking! Thank you for treating us as intellectual people but still teaching us in full. I feel like I'm back in university!

[@Stealthspy589]

So informative, it was sad not really being taught chemistry and so much of the world being confusing early on. Amazing creators like you give so much understanding to the people in the world it's truly incredible.

[@prestonburton8504]

how the internet should have always worked (instead of being conscripted by people with evil in their heart -mostly conscripted and my opinion solely)

[@heathroush5343]

Thanks for showing safe procedures for handling these materials. Some friends were careless making rocket candy at the beginning of the year and started a fire.

[@mojaverockets]

igniting any experimental motor with a fuse and run is probably one of the most dangerous things that can be done in rocketry and has resulted in numerous injuries and deaths.

[@aldunlop4622]

Honest could watch you explain anything. Really good style, explains things slowly and thoroughly, no bs, just the facts. Well done.

[@ThePostApocalypticInventor]

Yes! Great to see another long-form video from you guys!

[@jhondoux84]

Love your channel man keep up the great work

[@ThePostApocalypticInventor]

@@jhondoux84 Thanks man. Good to know you enjoy it!

[@After_Tech_Industries]

@@jhondoux84 i agree

[@leftspeaker2000]

Also love your channel !

[@june281980]

I wonder about a capacitor discharge to ignite the rocket

[@jonnyjohnson5025]

I remember when I first found your channel, it was at the very beginning and immediately subscribed. I was so afraid you might not get traction and shut it down. I'm so grateful others have found as much value in your channel as I have.

[@BlackGryph0n]

52:45 I thought the Challenger disaster was due to a failed internal seal in the SRB. Could max-q affect that at all?

[@TechIngredients]

It was. It may be that the extra stress at throttle up was the last straw and the SRB gave way, but it was not the throttled engines themselves that blew.

[@callmemusicman3884]

I was not expecting you to be intrested in rocket science, not gonna lie

[@gafoot5368]

Wind shear aloft was also a factor. An in situ plug of debris from exhaust particles and burnt seal material formed in the joint after ignition, which kept the joint from cracking wide open right away. Otherwise Challenger and her crew would have been destroyed right on the pad. When Challenger entered that unusually strong wind shear level (coincidentally near max-q), the flexing of the booster jarred the plug loose. Engine throttle up was the icing on the cake. Once that happened the exhaust gases were essentially a thermite blowtorch flame in a supersonic slipstream; it cut the aft booster attach point, and the aft dome of the external tank, causing liquid hydrogen to stream out. It wasn't long before the bottom of the tank opened up circumferentially like a zipper, and that was all she wrote. Aero forces then broke the whole stack up. All because of something as simple as rubber seals failing in cold temperatures. I hope that answers your question!

[@ethansmith5560]

@@TechIngredients saw a video on this. The seal is to keep pressure inside. The way the srbs are made came into play. They were made in sections and joined at the ends using a y shaped edge with an o ring inside to keep pressure on the bottom of the next section, along with some pins. When you watch a video of the challenger taking off you can see some wiggling at the bottom of the srbs. That combined with a cold o ring and the design allowed pressure to leak out. Specifically when it flexed, the o rings should've expanded to keep pressure on the two sections of the srb but didn't and a side of the y connector flexed to let pressure out. Which just happened to be hot and just tore the thing apart. Scott manley has a great video on it. Forgot the name though sorry about that.

[@RWBHere]

@@ethansmith5560 There wast least one other booster which had one of the pair of O rings fail. The outer of the two O rings was all that stopped it from failing in the same way as Challenger. Like many disasters, it was not caused by just one failed component; it happened because of a concatenation of several circumstances, including cold weather, two failed O rings, failure at exactly the right point for hot gas to be ejected onto the fuel tank, wind shear at Max Q and sloppy manufacturing and safety testing techniques, compounded by managers not listening to the dire warnings which were given by engineers. In some ways, you can say that they were tragically unlucky on that occasion, but that doesn't give the whole picture. The Columbia disaster was another example of circumstances coming together to create a tragedy. All previous successful flights had had debris falling off the craft at launch, but the crews of those missions were lucky, because it had always failed to dislodge the vital heat shield tiles which completed the events and omissions which led up to the disaster.

[@jarekdesign1]

When I was a kid in the early 80's I I pressed sugar + potassium saltpeter with a hydraulic jack into my rocket engines, this method blow my mind. You are the best !

[@carlsasau6162]

What a tidy and clean workspace! I don't build bombs or stuff but when I am done with a project it always looks like one went off anyway.

[@joeshmoe7967]

You have just described every space I occupy...room, shop, car...always looks like a bomb went off. LOL!

[@FullCircleTravis]

My shop needs some disaster clean-up, lol.

[@ger808]

@@joeshmoe7967 joe this is too funny

[@Dr_Wrong]

That's just plain "showin' off" there..

[@Steel-toad-Jack]

Going over the newest comments I was delighted to see you speaking with your audience. You earned both my respect and a subscriber.

[@TechIngredients]

Thanks!

[@keyplayermark]

So far, this is the most informative video I have found since making my own sugar motors. Very professional, not all hyped up. It's like watching my old physics instructor but this time I'm totally interested! :)

[@daveb6722]

Your long videos are fine because you don't pad it out with pointlessness, every minute is worth watching.

[@fkujakedmyname]

maybe if you couldnt pass high school chemistry some of us get bored and just wanna get to the engineering

[@daveb6722]

@@fkujakedmyname As a design engineer I appreaciate the thought process that goes into their design descisions. I can see you may have passed high school. did you get much further.

[@harolddavies1984]

The chemistry, history, and fun of the practical is everything. Thank you.

[@JB-zn1kx]

Except knowing the difference between cheap and inexpensive

[@petesteinberg9975]

I was in a rocket club when I was in high school sixty years ago. You remind me of the very excellent instructors there. We even had a liquid fuel engine that ran on acetone and compressed air. It was pretty heavy, so it never went very high, but it had a gyro and a gimbaled nozzle. That experience was life changing for me. It didn’t just teach me math, chemistry and rocketry, it taught me confidence, caution, and, above all, how to think. Your site is right up there with the Royal Academy. Thanks so much for this. Really excellent.

[@TechIngredients]

Thanks! That's a high compliment and very appreciated.

[@Fernando-sd6xt]

I'm glad to see you've reached your 500k mark. Congrats and deserved.

[@coltx64]

Your son is lucky to have you as an father🥰 Cool now I can make a rocket if I want to! Thanks for sharing! Have a nice Christmas!

[@sporkeh90]

Wait you don't want to? xD

[@coltx64]

@@sporkeh90 Haha nope, to much work🙉 For to littel short fun🙈 Would be funny so be able to get something in orbit but to hard with burning fuel. I have enough with building and experimenting on my newman motor. And as he said, I would never completed it as its not fun enough🙉 I wish these two would want to go through building an: " Cosmic Induction Generator " That would be fun to watch, a perfect replication of that, then afterwards try and explain the results they get as best as they possibly can! But that will never happen I guess🙈🙉

[@sporkeh90]

@@coltx64 That shit is a deep rabbit hole, at least here you can see some shit work within a reasonable timeframe lol

[@coltx64]

@@sporkeh90 hahaha yeah mate that Rabbit hoooole is deeeeep asf😂🙉🙈 But worth exploring! This much I can already say, the "easy" stuff we learn is fun, and as you say we can always see shit get to working, but all this other shit, shows results over and over that should not be possible, so I prefer that, over just simply making things work, its exiting!🙈 but its hard😂🤣

[@user-zj7zw9fg7v]

It's hard not to feel a sense of wonder and passion when it comes to rockets (and other things that go boom)! You did a fantastic job here walking through the process, and even have me feeling the urge to put together a rocket just for some fun! Merry Christmas!

[@LouCPher-hf2cs]

Benn watching KZbin videos since it's inception. I like how your just about the ONLY 1 who does this step by step, without that monotone, virgin, clinically depressed cereal killer kind of voice. And ur the only 1 I'm actually going to donate to.

[@AshkanKiani]

"Today we're gonna *do* rockets" >1 hour long oh shit here we go

[@joshclements497]

it's the best holiday present ever

[@WheezardX]

@@joshclements497 Right!? My thoughts exactly.

[@KK-xz4rk]

Saw that. Stopped video. Made some coffee and put a plate of gingerbread in front of computer. Unpaused.

[@Javii96]

I'll probably watch this several times over. Last night I put it on with intentions of falling asleep to it. Otherwise I'll lay awake

[@thexgear3619]

Muito bom hahahahaha. Sou Brasileiro, vou fazer isso daí.

[@johnashcroft8355]

Best pourable sugar propellant I have seen. The use of ammonium nitrate/potassium salt mix with sorbitol, impressive.

[@ExplosivesLaboratory]

How about *Ammonium perchlorate* and *Potassium hydrogen phthalate?* _Crazy power!_

[@jujuteuxOfficial]

Tech Ingredients not long ago: high explosives Tech ingredients today: DIY rocket engines Tech ingredients tomorrow: radar and GPS-based tracking for high speed projectiles

[@mandernachluca3774]

Na, let's start simple by going with a giro based internal guidance system, going full V2 stile. XD

[@Nexalian_Gamer]

Can I use a gyroscope from a plane?

[@quackzkustumz]

😂😂😂

[@skipd9164]

Every night I drive my nephew to work 3rd shift. He is in early 30s and still wakes up 30 before work. The whole time I talk about different channels I watch and don't shut up. He is a real smart kid and I know he would love to tell me to shut. You have given me weeks worth knowledge because I was getting low on subjects. Thanks for the video

[@Lee_B_Futures]

I love that you have the balls to tell everyone how to make flash powder! This is for sure one of my favorite channels

[@Lee_B_Futures]

@@logick2 Watch the video... it's in there

[@logick2]

@@Lee_B_Futures Daydreaming in class about past exploits has its consequences!

[@logick2]

@@Lee_B_Futures Daydreaming about previous exploits while in class...unintended consequences! Happy New Year! BE SAFE!

[@RanouttaTalent]

I just remembered why this still my favorite channel on youtube

[@DullPoints]

27:42 Thank you for using an audio compression here when you turned on the coffee grinder.

[@tomkay8880]

Having voiced my concern and surprise about ammonium perchlorate, I have to admit that this guy or outrageously detailed, and well spoken. I appreciate this.

[@davidwinokur2131]

What got my attention was that you seemed to allude to the method of layering the different regression mixtures so a solid fuel rocket can lift suddenly, then accelerate slowly before hitting the fast regression mixture in thinner atmosphere.

[@Puchacz83]

I suppose it could be achieved, if You would have signigicant diameter of the rocket (quite big is necessary) and then wou would use some internal tube every time in different diameter to our the next layer of the fuel. PRocess would take few days, but it's achieveable.

[@dougaltolan3017]

That would work but is not relevant to a motor that could (easily) be built that way. A serious issue with the plain hole through the middle is that as it burns the surface area increases, increasing gas production and therefore thrust. The "simple" way to get round this is to use a star shaped hole, the surface area remains constant, but would make layered manufacture very very tricky. Having said that though, a layered approach would be another solution. One construction technique could be like dipping candles. Each dip in hot wax adds a thin layer.

[@shanejustice6414]

The use of layered propellants with different burn rates and ISP is used in solid rocket motors industry, generally referred to as dual thrust.

[@Skinflaps_Meatslapper]

Layered propellants and combustion chamber designs are what the big boys use to achieve necessary thrust curves.

[@MistaJones89]

This guy's communication ability is a superpower.

[@420Chameleon]

He put all his points in speech/int

[@RuckinBrit]

Love your detail and passion for engineering and science. Thanks for another excellent video!

[@slimekinglp9194]

i dont know what it is, but your energie just makes you watch every second without skipping or not paying attention. your the best science youtuber

[@TechIngredients]

Thanks!

[@jorgetlw12]

"sir we found a man capable of getting us to space"..... tech ingredients with a straight face: "i need sugar, fertilizer, cardboard tubes and lube...."

[@ExplosivesLaboratory]

People often underestimate just how much energy is stored in regular Sucrose. Your typical kilogram bag of sugar contains 17 mega-joules of molecular energy. That’s a little over four times the energy stored in a kilogram block of pure TNT… Even if Sugar doesn’t burn when you put a flame to it, that obviously doesn’t mean that the retained energy can’t be utilized. It just needs an oxygen-rich environment. Like when mixed with an oxidizing agent or mixture of oxidizers with a decomposition catalyst…

[@gabriel_martz1470]

patents.google.com/patent/US20060145019A1/en

[@ExplosivesLaboratory]

@@gabriel_martz1470 Oh, so we’re gonna talk about the TR-3B now?

[@MoosesValley]

"... and lube" 🤣🤣🤣

[@emielv7677]

@@ExplosivesLaboratory I don't know what that is. So yes please 😂

[@Schnagelkott]

My favorite cooking show.

[@TheFrozenDesert]

What I learned today: When making coffee at the Tech Ingredients World Headquarters, be very careful when selecting the bean grinder.

[@dustinthewind3925]

Use the one labeled "fuel"... should be ok, lol.

[@feronanthus9756]

I grind all my rocket fuel with a ceramic burr grinder.

[@logick2]

Dementia-influenced situational awareness has its consequences...see Joe Xi.

[@MrSapps]

@@dustinthewind3925 make sure it says "human fuel" and not "rocket fuel" ;)

[@user-1281]

@@MrSapps the fuel is suger

[@bparker86]

I respect the fact that you showed your troubles. That really made the video stand out to me.

[@ericlondon5731]

He is that really good science teacher who's class I never had in high school....

[@timyates807]

Wow, I really lucked out today !! This is exactly the video I was hoping to find about rocket engine building. So detailed and clear, you simply cannot do better. More importantly this channel is amazing and your a phenomenal teacher. I subbed up right away as I did not want to chance losing track of it. I can't wait to have an opportunity to see more videos from you. Thank you very much for your time and effort in making great videos to watch and to learn with. Thanks again and Take care

[@gregorythomas333]

Burn times! Standard: 27 seconds Iron Oxide: 21 seconds Slow burn: 2 minutes

[@skybirdprojects5489]

That slow-burn propellant is really only good for a delay element, much too slow for rocket engines. Kinda shocking how long it did burn though...

[@daytonpyro]

why would you make a slow burn? thats a long flight time lol

[@manch.gamingrodri8089]

My respects and full support to this guy, his videos are extremely high quality, in both production and information, congrats and thanks

[@TechIngredients]

Thank you.

[@YogeshKumar-tk1sv]

Magnetohydrodynamics is just an excuse to play with rockets. I like it.

[@frogz]

rockets are just an excuse to play with Magnetohydrodynamics. I like it.

[@northernfreelance5788]

Wow! I love it! The slow burn was absolutely impressive. This would be great for a glider. I always wanted to make a couple top fuel dragsters and lined them up head yo head with small fast burners. Kinda replicate a quarter mile drag.

[@bobs5596]

i still have the ''Jetex" engines. doubt anyone can still get the fuel pellets. they are prolly antiques now.

[@ImStimky]

I love that the Ammonium Perchlorate mix burned for exactly 2 minutes. There is always conformity to be found among chaos Great video, as always!

[@moepow8160]

How nice, back in the day we did not have all this fancy modern way of building model rocket motors. Our casings were roll with glued paper bags over maderals. They hardened after a few days, the had to be inspected and sized, plugs and nozzles were made from pounding fire clay and grog with homemade maderals, all our tools had to be made as you could only order the chemicals, scales, and things already available for other uses. It took much longer to do this and then build our own Dinamo meters to test thrust out put, but that only came after hours of testing motors under ground due to many failures. It was fun and I put many years into this until I had a reliable safe motor to use. What you have to now and just order is incredible to me. I wish I could start over, but I have to many medical issues right now. Good video, nice safe shop you have thanks for passing this down to next generations of young people. I still hold a certification in High Power Rockets, mostly as a donation. Although I might attend the LDRS in Black Rock if I am well enough. Thank you.

[@ExplosivesLaboratory]

Time for a little _Rocket Science™_ *(literally this time)*

[@ianbuilder]

man has good taste just like his channel

[@ExplosivesLaboratory]

*True*

[@ulrichkalber9039]

It is and it is not rocket science. it is because we are talking rockets it is not in the sense that you use "rocket science" to describe something really hard.

[@philiplindquist87]

Don't get me wrong, I still like a good explosion, just not too close. Or with too much flyrock or shrapnel, fleshettes or like that. You know, were talking recreational use.

[@istvantorok26]

Absolutely love your vids. I will probably never build rocket engines but I sure enjoy watching the process . Very informative , well made super detailed video. Thank you for sharing your passion with the world . Very inspiring stuff !

[@anthonydowell2033]

Thank you so much, I'm so glad to have stumbled upon you. I missed my calling in high school because I was lazy. I have resparked my imagination and I'm gonna change the world with some new ideas in physics and chemistry. I'm 59 years old and I want to Set an example for others 😄I'll at least change the outlook of my family and friends

[@gregoryw.jenkins8036]

Sir: I wish you every success with your endeavours.

[@christopherilayaraja1399]

This gentleman is teaching engineering for free. such a valuable lesson with practicals. WoW!!!!

[@qimover]

Wow I didn’t realize it was a long video until you mentioned it. That’s because I was thoroughly entertained! Lol! Thank you!

[@RyanTaylor-pi8gq]

26:30 "Have a little bit more [sorbitol] and it makes an excellent laxative." That's a different kind of rocket fuel.

[@sergevereecke680]

I know a certain guy here on KZbin that should have watched this before he made a video about propping half a kilo of sugarfree gummibears down the hatch and running around for the rest of the video farting and doing marathon runs to the porcelain throne.

[@thiesenf]

@@sergevereecke680 LA Beast?

[@sergevereecke680]

@@thiesenf I think you're spot-on! And I might have downplayed the quantity it was 5 pounds ( 2,26kg's), jebus , after that torture your intestinal digestive bacteria have been mass-murdered.

[@sergevereecke680]

@SBK Stóre Jebus, how many times did you have to view this video to spot that !

[@petemclinc]

"Rectal Rockrets"!

[@frankdrebin6943]

Thank you for sharing your knowledge with us all. I really appreciate the level of detail you put into explaining everything.

[@nicoledotson4484]

One of the smartest guys I've ever watched

[@RDBDallas]

I have never watch a youtube video 3 times in a roll until today. I wish he was my teacher in school.

[@TechIngredients]

Thank you!

[@helpabrothawithasubisaiah5316]

@@TechIngredients you're awesome

[@AttillaDeHunt]

This was exceptional! Kind of amazed when you picked up the Ammonium Perchlorate, being familiar with that stuff, as I did not realize that it could be obtained outside of the Space Program. We in Henderson, NV. remember that stuff. Last amazing videos of yours I saw were the SPEAKER panel tests. You are an incredible teacher!! Thanks!

[@TechIngredients]

Awesome, thank you!

[@nunyabisnass1141]

It's fairly easy to get it outside of commercial use, but most suppliers still want see some credentials just to be reasonably certain that you're not some random nut job that will cause another round of regulatory scrutiny. I know a chemist that got a visit from the FBI for ordering oxidizers, and it was probably just a routine audit and their name fell out of the hat, and nothing happened. But they are watching and companies do want to protect themselves from liability.

[@RobertResearchRadios]

Great Video! Thanks for including the google doc with the formulas for quick and easy reference. I've wanted to try this since King of Random did it so long ago, but never got around to it. Keep the pyrotechnical content coming please :)

[@frankdrebin6943]

I absolutely love your analogy and way to "visualize " how a rocket works. You are an absolute KZbin legend!!!

[@TechIngredients]

Thanks!

[@thlee3]

reminds of a cooking show when he brought out the cured stuff from under the table

[@WX4CB]

and here's one we made earlier lol

[@PhilBoswell]

@@WX4CB I don't know where you live so you might or might not be familiar with "Blue Peter", that phrase brings back fond memories…now I'm imagining John Noakes building an actual rocket 🤯

[@WX4CB]

@@PhilBoswell yea i know... i'm from the UK (live in usa now though) but yes... as long as you use the sticky back plastic for the tube we're good. lol I wonder if he'll set it off in the blue peter garden haha

[@MrLikeke]

My chief chemist said chemists make the best cooks. Pretty much the same methods but different ingredients.

[@ActionHeinz]

The three words his kids most likely never heard: "I don't know"

[@paulpardee]

"I don't know... yet"

[@fu6461]

Yup

[@PatrickKQ4HBD]

"Let's find out."

[@eruiluvatar236]

Given how much he knows I believe that he must be really honest about what he doesn't know so he has likely said it plenty .

[@Projacked1]

that's 4 words....

[@nogoogle9063]

I appreciate the thought and effort you put into these videos. The detail and explanations are outstanding. Thanks for taking the time.

[@gowdsake7103]

A LONG LONG TIME yawns

[@iskandartaib]

8:00 - in all the years I've been watching science and rocket videos on KZbin, you're the first person I've seen who's explained rocket thrust in this manner. Everyone else just talks about Newton, conservation of momentum, reactions, etc. None of this actually explains thrust, this explanation does. I first came across this explanation in a children's book on space flight - I think it was in 1968 or 69 (not a coincidence - everyone, including 7 year olds, were crazy about space flight and rockets back then). The thrust would be the area of the opened door multiplied by the pressure (or pressure differential) in the room. Excellent!

[@cambridgemart2075]

I'm surprised that you didn't mention The Elemental Maker, he's highly knowledgeable on this subject. Also, I see I'm not the only one who uses the mill table as a workbench!

[@_AvaGlass]

22:45 “I have everything related to epoxy.” Weird flex, but ok.

[@jayknight139]

Its like 24 inch rims but for scientists.

[@BrianChristmas]

I think he was referring to all the epoxy and epoxy related items he has accumulated over the past few years. I would assume he needed quite a bit for his 'Drone Rotors' projects from 3 years ago.

[@AnalyticalReckoner]

he did a series on epoxy previously.

[@deedsmillar6056]

those who like epoxy, like it a lot. my grampa was an epoxy fanatic.

[@eulachonfish]

He sells the thermal epoxy they made in one of the videos to people who don't want to buy the strange ingredients (graphene etc.)

[@ssn608]

You obviously don't use a centering ring at the top of the tube when inserting the plunger... but why not? Won't it help line up the cavity with the opening in the nozzle, and wouldn't that be a good thing?

[@BrianChristmas]

Good question. I wonder if the nozzles correct for any slop in the cavity opening? I truly don't know, it will be interesting to read his reply.

[@Skinflaps_Meatslapper]

The combustion chamber concentricity is irrelevant for maintaining optimal thrust alignment, but it has a ton of relevance for the specific impulse of a rocket. A rocket motor is just a pressure vessel, it exerts pressure equally on all sides, so you can poke a hole anywhere in a pressure vessel to get desired results. It doesn't change how the gas vectors out of the nozzle, nor does it become less efficient at getting the gas out. The orifice/nozzle takes care of the directional side of things, so no need to worry about the combustion chamber. Depending on the shape of the combustion chamber, you can change how it erodes and expands during burn, and thus, you can control how you spread that thrust out over a given time. The surface area of this combustion chamber is the sole determining factor in how much propellant is being burned at any given time, and as it burns it gets bigger and thus you increase thrust...unless you shape the combustion chamber in such a way to prevent that from happening. For most hobby rockets, the thrust curve is perfectly fine from a simple CC like the one in the video. But, there are applications where this is not desirable (in cases where you do need engineers doing rocket science to determine what CC you need). For that, they've designed all sorts of CC's that accomplish different thrust curves. An off-center (non-concentric) CC will give you what's called a moon burner, it gives a progressively increasing thrust up to a point and then decreasing thrust before it's spent. A C-slot is very similar to the moon burner. They have some shaped like asterisks that give you maximum thrust in the shortest possible timeframe, some that have two perpendicular cuts that separate the grain into fourths that will give you a very consistently decreasing thrust from max, one that looks like you used a hole saw all the way down the middle which gives you consistently increasing thrust, and lots of others in between. So really, it has everything to do with controlling a given thrust over a given time to suit specific needs, and in this case, I'd imagine he's looking for a non-precise source of high speed gas to power his generator experiment, so he just went with a simple technique that lends itself well to batch consistency.

[@BrianChristmas]

@@Skinflaps_Meatslapper Wow, awesome reply and great information, thanks!

[@Skinflaps_Meatslapper]

@@BrianChristmas The amateur builders that make rockets for their own altitude or speed records often use these types of tricks to accomplish their goals. Basically, if you're restricted to a certain size, say x amount of propellant (meaning you have the same total impulse thrust), then your only options are to change when and how that thrust happens. For max speed, you'll want a fast burning combustion chamber, so a center hole (or asterisk shape) means you'll get a lot of instantaneous thrust and the motor will burn out relatively fast. For max altitude, it's far more efficient to go slower but longer, reducing the amount of aerodynamic forces on the rocket. That's where you'd want an offset moon burner, C-slot, or even and end burner (this is where the chamber doesn't go all the way through, it just burns like a candle from one end to the other). Not a whole lot of thrust at any given time, but it lasts way longer. Arbitrarily speaking, you could have a fast motor last for 2 seconds or a slow motor that lasts for 15 seconds, using the same amount of fuel and still giving the same total impulse. When you add up the thrust over time, a high thrust rocket that lasts a short duration and a low thrust rocket that lasts a long time will both have the same total impulse. It's just all in how you want to design it. Some will go even further and make the grain with multiple chemistries, a slow burn and a fast burn all in one, and then add in a specific combustion chamber to further enhance the thrust curve they want to see over the duration of the flight. If you're going for really high altitude stuff, you'll want a low impulse initially, then transition over to a higher impulse when you get into the really thin atmosphere, and that's where your calculations come into play. How much thrust is needed to get to x altitude, when is the best time to light the fast burn, that sort of thing. It gets more and more complicated the further you dive into it LOL

[@BrianChristmas]

@@Skinflaps_Meatslapper That is, once again, great info. When amateur builders are launching with the engines you just described are they competing with one another(e.g. local club)? Or is that level of design geared more for national events?

[@WaveArsenal]

guy: (Arms crossed) Hi. Today we're going to do...ROCKETS. everyone: Yes Sir.

[@Gator-fromOZ]

😃 “ALL RIGHT “, 🤓He said this was going to be Fu💥🔥🔥🔥..... 🤪 👨‍🚒👩🏾‍🚒🧑🏻‍🚒 🚒 🚑 🚔

[@thewatersavior]

39:00 Might be cool to add a centering ring to that insert so the plunger gets a straight shot at the bottom

[@TheTapemeasureman]

an indention in the plug would achieve that same goal . I did think that about the only haphazard process here. I think the hollow part, if off kilter would radically affect trajectory, maybe not.

[@TheTapemeasureman]

and I say maybe not, due to the nozzle. could be that on the back side of the nozzle the direction of the pressure is negligible.

[@davidebusato2476]

1 hour and counting of video and the time literally flew... great teacher!

[@TechIngredients]

Thanks!

[@superchuck3259]

Over 500K Subs, Congrats! You went Gold!

[@bashkillszombies]

I sure am glad he taught us to make an acoustic death ray because now I can't hear his warnings about safety anymore, I have a rocket up each nostril. I'm going to Mars lads!

[@thiesenf]

Have some Taco Bell sessions and you won't need to fill your nostrils... just strap a bell to your ass... :-)

[@thiesenf]

@Ivan Jakanov I too greased some other rod...

[@sarunasvebra8413]

awesome, i feel like i was in a classroom, with that cool teacher, time is flying

[@daklakdigital3691]

I live in VietNam where Sparklers, those hand-held party items, were legalised only a few years ago. Forget fireworks, they are for the military. This excellent series has provided resources that enable us to do things that escaped the attention of law makers. Our group now has science camping weekends where go to so remote area and literally have a BLAST! We made our Man in Space with a camera, and together with information from other KZbin series, coupled with yours, we have been able to build rockets. We take your videos, add a visual track of your words in Vietnamese, and away we go! Personally I am involved in lasers used for various production processes, but your sound series have been used in our laser range high in the mountains along the Laos border. Thank you for your great work and the stimulation it provides to curious young minds on the other side of the world.

[@TechIngredients]

Thanks. Did you watch our earlier videos on lasers and laser scanners?

[@seanjoell]

AWESOME!!. looking forward to the rocket launch!