How to Make a Rubens Tube

[peanutmaster1231]

Nice video. Would I be able to build this using PVC pipe? Or does it have to be copper or metal? Just trying to figure out where I can save money. Thanks!

[JLonsinger2011]

@peanutmaster1231 The PVC would melt.

[ewanfowler]

does it have to be propane or would this work with bench gas in a laboratory? sweet vid

[kennykefell]

Texas a&m is for poor and retarded children

[Tur0o]

Great video. You explained t very well. Thanks, I just have a question. What software did you use, or what can I use tho create those same high and low frequencies so I can know the hertz and control it? I will appreciate the help very much so.

Once again thanks for the vid.

[bguerre12]

Thank you very much for this how to! I'm going to be building one's for my college physics class, much smaller scale but i didnt think of the latex glove idea, thankyou! About how much did the equipment cost without the tank, and what software did you use to generate the frequencies?

[thebmr321]

can i use pvc insted of copper kuz copper is very expensive oh and you said dont try this at home kids well im 13 AND IMA TRY THIS AT HOME!! MUAHHAHAHAH

[comptonassjt]

do you think you could make a mini one out of 15mm 500mm long copper pipe??

[comptonassjt]

how come the flame doesnt just go inside of the copper pipe and ignite it all? or go deeper and explode the bottle of gas????, im not very clever i know...

[GinjaNinja1994]

@comptonassjt It wouldn't explode the bottle, as the bottle has a saftey valve inside it, so if the pressure becomes too great, the gas will be released, preventing a back-garden fireball.

[841accmj]

@Prepoceros @ what points would u put a 4 1/2 ft tube

[Free2101]

@SmileysRevenge100

Ya it's safe for indoor use, I built one for my AP Physics class for the end of the year project. You do want to take some precautions but the flame doesn't really get that big. Do have some kind of fire retardant object or substance ready, just in case

[metrokick911]

what kind of tubing should I use from the propane tank to the pipe? will vinyl work?

[schnowphia]

dubstep works the best:3

[videodrone13]

Leave it a couple engineers to build this thing under a wood shelf.

[smoking2wheels]

@videodrone13 Well at least they didnt use PVC.

[SmileysRevenge100]

Ok, I have two questions. Does the diaphragm have to be a latex glove? Could it be vinyl gloves instead? Also, is this something that should only be done outside or is it safe enough for indoor use?

[necrophoipc]

BYE KIDS ?!!!!!

[jack6565]

@guitarlearner621 If you stop drilling the holes a good 200mm from the latex youl be fine.

[pommo888]

Wats the name of the techno music because it sounds to be good in my tube as well

[stereocillia1988]

Just a few questions. Is it the resonant frequencies of the pipe which produces the standing waves? How many holes were drilled into the pipe? And what were the circumference of the drilled holes? Thanks.

[arsitx]

awesome...............

[Iamatheist1234]

what song was that at the end?

[Tarlacon]

SAFTEY GOGGLES PEOPLE!!!!

[whackitov]

is there a diaphragm at the speaker end of the tube? and i presume the other end is capped off?

[Prepoceros]

@whackitov Yes, one end is capped, and the other end has a latex glove stretched across it.

[ThdeGreatestOne]

@Prepoceros Can the tube be any length? From like a couple of feet to the length of the tube that you have in your video?

[metrokick911]

@ThdeGreatestOne Any length will work except the longer the better since it will display more full waves. But, if it's longer, it'll take a longer time to fill up with propane.

[KonZikawa]

i have a question bout this - when u fill the tube with propane shouldnt the gas then just blow out through the holes that you have drilled or do you have something thats blocking the holes until u ''fire it on'' ?

you have valves for the gas to go into the tube at 2 points at around 1/3rd part of the tube and at around 2/3rd of the tube - would the effect be less if you only let the gas enter the tube from the side of the tube ?

[Prepoceros]

@KonZikawa Propane is heavier than air, so it just sits in the tube until the tube fills completely with propane. Only then does it starts blowing out of the holes, and that's when we light it. The valves let the propane in pretty slowly.

The effect would be the same, but the waves at the valve end would probably be distorted because of the turbulence near the valve. If you look at some other Rubens tube videos, you will see some that only have a valve at the end.

[gerwinin]

Really awesome !!!

[747knarf]

cool!

[Orione]

That's cool! I had never heard of anything like it. I bet they will love it at the physics fair!

[HKurck]

I like Rubens tubes :)

Must have taken some time to drill all holes

[fillyonfire3000]

That was really awesome :)

[singful]

that is just sexy!!!