Whoosh Bottle Rocket Demonstration

This week Professor Mike Canestaro demonstrates what you can do with a whoosh bottle! Stay tuned for a miniature explosion with an explanation of SCIENCE!

[@FirstLastOne]

Thanks for the laugh at the end. We all needed a science teacher like you in high school. Sadly, many of us didn't get that!

[@darocks6501]

This dudes gotta be the life of the party for sure!

[@ScienceWithMike]

Remember when there used to be parties? *sigh*

[@darocks6501]

@@ScienceWithMike I hear ya brother. Next one I have, when we can have em. You definitely got an open invitation my friend.

[@farooqullah319]

I didn't come for education, I came for whoosh

[@ScienceWithMike]

We are happy to provide both.

[@Enigamis]

Thank you for these great demos. Your energy and excitement had us all at my science cente chuckling.

[@dutchvanderlinde2067]

This man predicted corona virus at the start of this video damn who’s here whilst we’re in lockdown

[@ScienceWithMike]

Me!

[@Vinnay94]

No, Viruses have always been around such as Bird Flu, Swine Flu, Sars, Corona.

[@Bigsativa]

@@Vinnay94 hes being sarcastic dawg

[@no-damn-alias]

We had a world wide influenza pandemic in 2017/18 just nobody gave a damn

[@Dr_Xyzt]

The frame at 7:11 perfectly captures why these things go "woosh." The flame propagates straight down the bottle, while the expanding gas forces the mixture out of the bottle as well. The fact that it reaches the bottom of the bottle like that is so amusing. The cloud that forms at 7:12 when there's only fire at the bottom is also interesting, because when the fuel is gone, the fire goes back into the bottle and devours it. What is it? Hydroxide gas? Nitrogen oxides (NOx)? Formaldehyde?

[@navidfarkhondehpay1142]

tf is 'hydroxide gas'? Also, why would there be formaldehyde? I am not aware of any reaction between ethanol and any of the constituents of air that yields formaldehyde, but I might be wrong there. I think the most likely explanation is that there's just leftover fuel that continues to burn after the initial 'woosh'

[@Dr_Xyzt]

@@navidfarkhondehpay1142 Add a given amount of oxygen to burn Ethanol. -- Look at the ethanol molecule. Ethanol is a methyl group bonded to another molecule which is effectively a methyl hydroxide. -- If oxygen is added in some sequence, the ethanol molecule is decomposed possibly from the methyl side. The OH group on the ethanol can be removed via thermolysis if there is not enough oxygen present to fully react the chemical. -- The C-O bond has more energy than the OH bond. So, I'm of the thinking that the Hydrogen molecule can be broken from the ethanol molecule, which would yield you methyl group bonded to a formyl group, but the C-C bond can be broken by some chaotic sequence, giving you formaldehyde. Burn alcohol in a bottle and smell it. It doesn't smell like warm alcohol. It's something else. Either formic acid, or formaldehyde. Either way, it can nucleate vapors as well.

[@navidfarkhondehpay1142]

@@Dr_Xyzt It's an interesting theory for sure, but I was always under the impression that ethanol combustion would yield H2O and CO2, and potentially CO and C if burned in an oxygen-poor environment. Maybe I was lied to? I haven't ever seen an analysis of the products of ethanol combustion, but I would love to see some evidence of the production of more interesting products like formaldehyde or formic acid if you could point me towards it.

[@Dr_Xyzt]

@@navidfarkhondehpay1142 The theory is there. The way to test it would be to pull product gases into a big syringe and have it tested with a mass spectrometer.

[@pinkybananas1]

I snorted when he said it was created by Walter W. Whoosh

[@josephastier7421]

It is this kind of scientific curiosity that once blew a Pacific Ocean atoll to oblivion by accident.

[@lowpressure5143]

7:28 is my favorite part for fluid dynamics, it says as area decrease or the body of the bottle then it can expand a little keeping velocity

[@lowpressure5143]

7:28

[@biancastucka9121]

Every whoosh bottle fail was my entire 1st period 😂

[@Shreymani2]

7:24 whoosh rocket 😂😂😂 so cool love it

[@ScienceWithMike]

We're currently working on a video like that for Tik Tok.

[@Resonanttheme]

That was a clever skit on Walter W. Whoosh. Well played.

[@tonyt77]

Resonanttheme gtfoh

[@n0mad_noob805]

I just did that experiment and accidentaly burned my fingers. 😂

[@ScienceWithMike]

Ghost from YT badge of honor!

[@BassCossack1]

was the intro edited in?

[@pepsidoggo1598]

Can this create thrust? if so how many do I need to lift myself off the ground?

[@ScienceWithMike]

A lot.

[@pepsidoggo1598]

@@ScienceWithMike But it is possible?

[@erfinderwerkstatt]

Woosh

[@mr___unique9990]

We have to do in my collage It would ok

[@krubokrobu]

As he's shaking to vaporize the alcohol, he says this way there's not too much air. What? Where does the air go? Unless you evacuate it first or fill it with some other gas, it will be full of air, right??

[@MadScientist267]

Skolnick! Is that you? 🤣

[@RenoLaringo]

Hope you got paid for that ''virus'' intro ...

[@ScienceWithMike]

Oh geez, I wish! I totally mis-timed it!

[@RenoLaringo]

@@ScienceWithMike lol never too late mate 😁

[@satyamustikayoga1002]

WTF!!!!,,,,THIS IS ROCKET!!!!😱😱😱😱😱😱

[@wanyekest2752]

0:01 this man predicted the covid

[@ceka_gaming9686]

Good luck men

[@carolnascimento7425]

massa ó doido