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How to Build a Rocket Engine in Your Kitchen (Experiment Episode)

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Hank demonstrates how to build a hybrid rocket engine in your kitchen! Hosted by: Hank Green Head to https://scishowfinds.com/ for hand selected artifacts of the universe! ---------- Support SciShow by becoming a patron on Patreon: https://www.patreon.com/scishow ---------- Dooblydoo thanks go to the following Patreon supporters: Lazarus G, Sam Lutfi, Nicholas Smith, D.A. Noe, سلطان الخليفي, Piya Shedden, KatieMarie Magnone, Scott Satovsky Jr, Charles Southerland, Patrick D. Ashmore, Tim Curwick, charles george, Kevin Bealer, Chris Peters ---------- Looking for SciShow elsewhere on the internet? Facebook: http://www.facebook.com/scishow Twitter: http://www.twitter.com/scishow Tumblr: http://scishow.tumblr.com Instagram: http://instagram.com/thescishow ---------- Sources: https://gizmodo.com/how-to-turn-dry-pasta-into-a-rocket-engine-1514944607 https://web.stanford.edu/~cantwell/AA283_Course_Material/AA283_Course_Notes/AA283_Aircraft_and_Rocket_Propulsion_Ch_11_BJ_Cantwell.pdf http://www.qrg.northwestern.edu/projects/vss/docs/propulsion/2-what-are-the-types-of-rocket-propulsion.html https://www.grc.nasa.gov/www/k-12/airplane/lrockth.html https://www.sciencedirect.com/science/article/pii/S1270963806001404 https://phys.org/news/2015-07-student-hasten-dawn-hybrid-rocket.html https://www.sciencedirect.com/science/article/pii/S0094576516301941 https://www.acs.org/content/dam/acsorg/education/resources/k-8/science-activities/chemicalphysicalchange/chemicalreactions/heat-up-to-some-cool-reactions.pdf http://www.qrg.northwestern.edu/projects/vss/docs/propulsion/2-what-is-an-oxidizer.html https://www.scientificamerican.com/article/exploring-enzymes/ https://www.space.com/330-spaceshipone-rocket-engine-upgrade.html http://www.scielo.br/pdf/jbsmse/v32n4/v32n4a12.pdf Media: https://www.istockphoto.com/my/photo/science-fair-project-gm460811091-20917190 https://commons.wikimedia.org/wiki/File:Two_Space_Shuttle_SRBs_on_the_Crawler_transporter.jpg https://commons.wikimedia.org/wiki/File:Space_Shuttle_Columbia_launching.jpg https://commons.wikimedia.org/wiki/File:LiquidFuelRocketSchematic.jpg https://commons.wikimedia.org/wiki/File:Sojuz_TMA-9_into_flight.jpg
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Text Comments (482)
Richard Does gaming (11 days ago)
How do I add a nuclear war head, for research purposes GLORY TO RUSSIA
Morgan Winters (15 days ago)
Toffee, peanut butter and aluminium powder as solid fuel, nitrous oxide as oxidizer. Mind you, a glass jar wouldn't be up to the task but it is far safer than storing bottles of hydrogen peroxide. See: youtube.com/watch?v=Hqxb06LpXTI
Ashley Wrigley (1 month ago)
I liked this experiment, but I was really hoping for a rocket engine I could launch a real rocket with.
Ken O (1 month ago)
This sort of skipped why rockets move. We cause a pressure to be present inside the rocket. This pressure pushes in all directions against the inside of the rocket and this pressure would push the rocket causing it to move, but in each direction it pushes, it also pushes in the opposite direction, so in gets balanced out & there would be no movement, except that there is one opening --So there is a single direction the pressure is pushing in, (the direction opposite the opening) which is not balanced out.
Zander Rossman (1 month ago)
PMW3 (2 months ago)
give me fuel, give me fire, give me dabezabeza
Jeffrey Nee (2 months ago)
You should put it on a simple kitchen scale, so you can measure how much thrust it's generating.
Nin10 (2 months ago)
Hank Green the Science Guy
victor 91 (2 months ago)
This is not a real rocket engine.. It's an im-pasta
rosebud011 (2 months ago)
This was great! 👍
The Science Hutch (2 months ago)
Thanks for the vid! This will be a good activity to kickstart our study of chemical changes in my Chemistry and Physical Science classes this Fall.
pd (2 months ago)
worked a bit too well. my building and consequently its residents are currently on the moon... HHHHEEEEELLLLLLPPPPPP!!!!!!
Kent Hoyt (2 months ago)
You've also made a very weak thermic lance. That's a super hot flame used to cut up big chunks of metal. Carbon rods in a tube, connected to a pure high pressure O2 stream.
Last Shadow (2 months ago)
Man, I was hoping that I could let Jebadiah go up to my tree...
Scathing Lemon (2 months ago)
*How to burn your house down*
Drew (2 months ago)
Hmmmm, I kinda want to try this with paraffin wax.
Kaesden (2 months ago)
put this rocket on a kitchen scale that reads out grams. light it and see how much thrust you've created, if there's a measurable amount
Dee B (2 months ago)
How can I make a time machine in my kitchen?
Ian Buck (2 months ago)
That was really fun! I would love to see more experiment episodes.
Jaeden van der Berg (2 months ago)
It's just rocket science.
Danny Keeley (2 months ago)
its funny how Americans say "parsta" instead of pasta
Adam Kerney (2 months ago)
would be neat to see more videos like this! also the 135 people who don't like this suck :(
Radical Edwards (2 months ago)
yall got some boring rockets, I build more fun stuff in my kitchen. it aint all about flow its about fuel/oxidizer ratio and compression and jet/nozzle size and for space faring rockets one must observe tsiolkovsky
Jonathan Cutting (2 months ago)
SciShow Kids has all the good stuff. :(
Joseph Montoya (2 months ago)
more home experiments!!!!!!!!!!!!!
Niko erforderlich (2 months ago)
"Without [the noodle] covering any of the hole up and without any of the hole escaping of the noodle." -- Hank Green, 2018
Fernando Romera (2 months ago)
I like this format
d p (2 months ago)
I wish we could have seen this occur on top of a scale so we could see the actual thrust produced
Jeromy Doerksen (2 months ago)
More experiments, please!
Leon612 (2 months ago)
Still more advanced than the African space program.
Michael Walton (2 months ago)
Let's have fun with noodles!😁
Landon Roy (2 months ago)
This dude has the most BLAND jokes I’ve ever heard in my life...it’s like the writers don’t even try...or they’re stoned
Kenneth Cain (2 months ago)
Please do more kitchen science experiments like this.
Bird_Dog (2 months ago)
I was actually waiting for the burning noodle in connection with the pure oxigen to set the steel lid of the jar on fire... Steel + pure O2 + ignition source = trouble
NathanielCF (2 months ago)
The sub title for this episode is, "In Which Hank Green Gets Himself Put on All of the Watchlists."
A C (2 months ago)
i dont have yeast so i used some calcium carbide and water to make acetylene gas (CaC2+H2O=C2H2) and everything caught on fire
I might not understand something, but you simply burned a noodle on a jar and nothing happened
David Thornton (2 months ago)
Teaching kids to burn their house down! I like it :D
OldGamerNoob (2 months ago)
When I saw this exact same experiment on another, more obscure, youtube channel I did think it was cool and I later saw an eposide of myth busters (first one on netflix) where they made a bigger one out of candle wax but it wasn't until watching this video with all the extra explanation that I had the idea to see if I can combine the two and drill out a candle on top of a jar with perhaps some battery acid as the catalyst (would love to get my hands on a medical oxygen condenser) anyway, wish me luck as I really hope not to kill myself or burn the house down. ;-P
Estevan Castro (2 months ago)
If it goes catastrophically wrong, don't worry, just put in your buildings elevator.
33joee (2 months ago)
1/3 of a centimeter :) thats funny
Daniel Dulu (2 months ago)
my grand kids thank you I will be trying this, they are 7
areamusicale (2 months ago)
When theuy say: pure oxigen is highly reacting, what does it react with? for example would pure oxigen explode or burn if in contact with a flame? What the chemical reaction happening in the explosion?
Ivan (2 months ago)
make more of these experiment episodes
Anya Thurmes (2 months ago)
I feel that the most appropriate way to do this is with a Ball mason jar, since they also make _real_ rockets.
Joshua Hansen (2 months ago)
I have a sort of crazy idea for hybrid rocket that uses both solid fuel and Cassius / solid oxidizer
Dylan Crespo (2 months ago)
Wouldn’t the reaction between the yeast and hydrogen peroxide also create hydrogen gas?
Ron White (2 months ago)
That's more of a candle.
I'll Shoot You (2 months ago)
"a third of a centemeter" ... uhhhgg you mean 3.3mm
Carlos P. (2 months ago)
North Korea attempts to develop missile technology, 2017
Mica Chimera (2 months ago)
You can also make a pulse jet with a mason jar by putting a small amount of pretty volatile fuel in it (I used methanol), poking a hole in the top, and lighting it. Very noisy and more exciting but not nearly as safe, especially since it tends to break, which, you know, spills hot jet fuel near a flame. It helps to put it in a pool of water though. Advice to anyone who wants to try this, it's important to get the hole in the top as round as possible. You can probably find pictures where people suspend a metal tube inside the jar but I've never tried it.
Ronius Adethel (2 months ago)
3:18 anybody else briefly think Hank was flipping us the bird?
Dead Parroting (2 months ago)
The shape of the solid component's molecule should be the big influence on the structure. Making the attachment point for the oxidizer readily available would be key.
R3Testa (2 months ago)
Before doing this, try the noodle on the jar with the hole, but without the hydrogen peroxide and yeast. Then you can see if there's a difference between a burning noodle and this.
Tyler Peterson (2 months ago)
I feel like maybe a drop or two of liquid dish soap would have been beneficial, to prevent the liquid from potentially shooting through the hole. Too much of the peroxide or yeast might end up with the noodle or the floor wet.
justin xiao (2 months ago)
Reminds me of the time he built a bomb in the basement with Drew.
Scott Miller (2 months ago)
Nice. A good addition to the experiment would be to burn a pasta without the added oxygen. Is the flame as high? Does the addition of oxygen do anything? Myth Busters tried to build a hybrid rocket using a bunch of salamis (with a hole drilled down the center) stuffed into an aluminum tube, end to end, and nitrous oxide (if my memory is correct). Didn't work. blobs of salami broke loose and clogged up the hole.
king james488 (2 months ago)
I'm sure happy I learned volcanoes are full of baking soda and vinegar. and that's in no way a rocket engine, you're just burning a noodle.
Salvy Gonzy (2 months ago)
explanation is good but your rocket example is bad very unrelated you should used sugar and stump remover
Daniel Giles (2 months ago)
So if you put the mason jar on a scale, you should see the wait increase, which will give you the thrust it's producing. After I wrote this I say a similar comment below. A bathroom scale would probably not be sensitive enough -- you'd need a kitchen wait scale set to grams.
martijn smit (2 months ago)
Okay this just gave me a terrible idea. Put the hydrogen-peroxide and yeast in a potato cannon close it off, let pressure build up for a bit. Put powdered sugar or flour in the barrel and fire at a flame. Don't do this, this is a very bad idea.
yammer5 (2 months ago)
This is one of those channels that I straight like even before I’ve seen the video, because it’s a guarantee that it’ll be good.
enticed2zeitgeist (2 months ago)
It looks more like a D.i.Y. Bunson burner to me.
Nicolas Perecini (2 months ago)
Just give me some tacos
marim0y (2 months ago)
I can't believe you were in the kids space and Squeaks didn't make an appearance! 🐭
sambowman91 (2 months ago)
Not to be a pedant, but that's not how hybrid rockets work. Hybrids work by melting/entraining/subliming the fuel as the oxidizer is moving past, and combusting the two. The combustion moves from the center of the fuel grain out. This experiment basically just set a noodle on fire in an oxygen-rich environment.
Adam Wishneusky (2 months ago)
very cool demo!
Charles Davidson (2 months ago)
What if you added more rigatoni? More mini-thrust?
sniperammow (2 months ago)
My mom does not say why, she brings the mop to my face, beats me with it and then forces me to clean the mess I made.
Laura Jones (2 months ago)
Do this on a force plate! (weight scale) to see how much thrust it actually does generate! I'm curious now....
Lodada (2 months ago)
Good thing North Korea doesn’t have YouTube
Clint Bandura (2 months ago)
How about a pulse jet
prazol schleiden (2 months ago)
the stuff doesn't even move.
Big Boss (2 months ago)
If only NASA used pasta
Michiel James (2 months ago)
Please debunk the flat earth theorists. They are really becoming extremely annoying.
henry hurst (2 months ago)
Next you add the beryllium and thorium then mix with an anhydrous alcohol such as pentene and hover it through the vacuum cleaner make // make shift turbo pump mix a little LiO through another vacuum and Bush bash bosh you have a make shift jetpack
VEE727 (2 months ago)
Why don't rockets take off like planes? Too heavy for wheels?
LazyNinjass (2 months ago)
Wish I saw this in the 4tg grade
The Spanish Inquisiton (2 months ago)
This is great do it more.
Auyer Rafael (2 months ago)
CCH DZ (2 months ago)
For anyine wondering whats the deal with Hank and Elon Musk, it went something like this: Hank: You can agree with Elon that he is a job creator and also agree that he shouldn't have clapped back to a stranger in anger when he is a billionaire with millions of very passionate followers. Elon: I think the person who attacked me on Twitter will survive somehow Hank: Oof *sad emoji face* Thats all, people in this comment section are blowing it up out of proportions.
Copper Hamster (2 months ago)
Man all that money I spent on Estes and other brand engines and I could have been using Pasta instead.
Dennis Lubert (2 months ago)
Funny how this displays still ads while almost all similar videos from other channels can't as they are "not advertiser friendly". Oh I forgot, you have 5mio subscribers.
Humble Soldier (2 months ago)
This was a learning experience. Thank you for the information.
Robert Cartwright (2 months ago)
The problem with using a kitchen scale to measure the thrust in this experiment as some have suggested is that the thrust force on the scale would be canceled out by the mass loss from the burning of the fuel and the release of the O2 from the peroxide.
Kiko The Dog (2 months ago)
This is one of those rare hank videos.
buttman d'butthurt (2 months ago)
More of this please!
Yextus (2 months ago)
Anyone else know exactly how to build it from the thumbnail?
Kevin Oduor (2 months ago)
so the answer is no.
Thomas Wijgerse (2 months ago)
can you make rocket candy next? this is a solid propellant of sugar and potassium nitrate
Terren Maplethorpe (2 months ago)
I have a question for everyone in the comments who knows a lot about biology, I’m going into my señor year and want to have a bio project that involves generational breeding of aphids. Do you think 1 year is enough time to make the project results worth while. It’s about diet change and behavioral response
Cahyaning Vidyaswati (2 months ago)
Elon Musk in the kitchen 🤘
Sarkastik Overlord (2 months ago)
The reason these engines don't work is because you're using rigatoni.
Jiolo Macling (2 months ago)
Can someone ask them about orbital elevators?
Aidan Or (2 months ago)
I made meringues for Chemistry, not for Food and Nutrition. If you did this upside down would you get liftoff?
MC BIZZLE (2 months ago)
Ah yes let me just get my pure oxygen out the kitchen cupboard....
Alien ._. (2 months ago)
Ayyy Hank is back
Gummy Bear (2 months ago)
my tea bag rocket at least's lifts off the table :D
Tom Lee (2 months ago)
I am gonna be launching my lunch.

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