Rubens Tube Experiment - sound into fire

Doctor Q · Oct 17, 2006, 07:13 PM

OK, science experts. How does this work?

Rubens Tube Experiment

I certainly like the visual display along with the Foo Fighters music, but I'd like to understand it better (the science, not the Foo Fighters music).

Less-serious questions: Can I get one of these for my home stereo system? Will it be compatible with an iPod Hi-Fi?

WildCowboy · Oct 17, 2006, 07:19 PM

Very cool...he actually does a pretty good job of explaining how it works. The resonance of the tone generates a standing wave inside the tube. Since sound waves are created by differences in pressure, the wave results in varying amounts of propane being forced through the holes.

Awesome.

Unorthodox · Oct 17, 2006, 07:21 PM

Magic, Q. Magic.

That would make a cool singing birthday cake candle.
Hmmm....

Seriously though.... Just what the guy said.
Something happens somewhere somewhere resulting in what you see.

Duh.

Clydefrog · Oct 17, 2006, 07:22 PM

thats awesome! new video to me

clayj · Oct 17, 2006, 07:24 PM

Wow, very cool... and it's almost common sense how it works, once it's explained.

This seems like the sort of thing that would make a cool display in some high-end, trendy club in NYC or LA. Just make the tube out of metal instead of PVC (so you don't have to worry about anything melting or burning), and hook it into the club's sound system.

Unorthodox · Oct 17, 2006, 07:28 PM

Quote:

Originally Posted by clayj

This seems like the sort of thing that would make a cool display in some high-end, trendy club in NYC or LA.

Or a homemade iTunes visualizer...
That just might be stupid enough to work!

*runs to Home Depot*
*faints from the running*
*stumbles home*
*gets in car and drives to Home Depot*

XNine · Oct 18, 2006, 07:45 AM

One thing is for sure. This guy has some kick ass parties with that thing going!

OutThere · Oct 18, 2006, 11:33 AM

We did that in my freshman physics course in high school...it was pretty awesome. My teacher hooked up his guitar amp to a small speaker that he fit to the end of the pipe, and rocked out for an entire lab period while we were just mesmerized.

It's much better in person, and with the lights out and shades totally shut, naturally.

yellow · Oct 18, 2006, 11:40 AM

That's pretty darned cool.

®îçhå®? · Oct 18, 2006, 12:38 PM

That does look rather cool. I might have to show it to my electronics teacher and see if we can do it.

Jesus · Oct 18, 2006, 01:28 PM

You can do the same thing with water, as they do at the exploratorium, since what this is doing is showing the shape of sound waves, through its effect on an object. If anyone on these boards is impressed by this, eithergo down to the exploratiorium or try it yourself. AS others have said, it really is more impressive in person.

yellow · Oct 18, 2006, 01:32 PM

Quote:

Originally Posted by Jesus

eithergo down to the exploratiorium or try it yourself.

Errr... exactly WHICH "exploratorium" would this be? Jerusalem? Bethlehem?

WildCowboy · Oct 18, 2006, 02:12 PM

Quote:

Originally Posted by yellow

Errr... exactly WHICH "exploratorium" would this be? Jerusalem? Bethlehem?

I assume the one in San Francisco...best science museum I've ever seen. I've been there twice in the last month and haven't seen that exhibit, although they're in the process of changing a lot of exhibits and I didn't make it all the way through the place either time. I have seen it in the past though...very cool, but fire is even cooler.

As amazing as the Exploratorium (I always end up completely exhausted before I make it through the whole thing), they're raising money to move to a new facility that's three times the size of the current one. Yowzers.

Jesus · Oct 18, 2006, 02:17 PM

I was refering to the the San Francisco Exploratiorium, where do you think Jesus lives!!!!

Doctor Q · Oct 18, 2006, 04:17 PM

In what medium are the standing waves created -- the air? Do the standing waves result from a multiple of a fundamental frequency or from reflected waves? Is a fundamental frequency the same as a resonant frequency? I need to brush up on my fluid dynamics, which was the physics class I had the most trouble with.

Oct 17, 2006, 07:13 PM	#1
Doctor Q macrumors god Join Date: Sep 2002 Location: Los Angeles	Rubens Tube Experiment - sound into fire OK, science experts. How does this work? Rubens Tube Experiment I certainly like the visual display along with the Foo Fighters music, but I'd like to understand it better (the science, not the Foo Fighters music). Less-serious questions: Can I get one of these for my home stereo system? Will it be compatible with an iPod Hi-Fi? __________________ Oh do pay attention 007. In the wrong hands, this cylindrical 12-core Mac Pro with three 4K displays, FirePro graphics, and Thunderbolt 2 could be very dangerous.
	0

Oct 17, 2006, 07:19 PM	#2
WildCowboy macrumors god Join Date: Jan 2005	Very cool...he actually does a pretty good job of explaining how it works. The resonance of the tone generates a standing wave inside the tube. Since sound waves are created by differences in pressure, the wave results in varying amounts of propane being forced through the holes. Awesome. __________________ Editor in Chief, MacRumors
	0

Oct 17, 2006, 07:21 PM	#3
Unorthodox macrumors 65816 Join Date: Mar 2006 Location: Not at the beach...	Magic, Q. Magic. That would make a cool singing birthday cake candle. Hmmm.... Seriously though.... Just what the guy said. Something happens somewhere somewhere resulting in what you see. Duh. __________________ Advertise your site, software, or service in this space and be seen over 100,000ish times per day by your target audience. Click here for info.
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Oct 17, 2006, 07:22 PM	#4
Clydefrog macrumors 6502a Join Date: Feb 2006 Location: Pittsburgh,PA	thats awesome! new video to me __________________ 15in MacBook Pro 2.33ghz, 4GB, 120GB, 256MB X1600
	0

Oct 17, 2006, 07:24 PM	#5
clayj macrumors 604 Join Date: Jan 2005 Location: 1123,6536,5321	Wow, very cool... and it's almost common sense how it works, once it's explained. This seems like the sort of thing that would make a cool display in some high-end, trendy club in NYC or LA. Just make the tube out of metal instead of PVC (so you don't have to worry about anything melting or burning), and hook it into the club's sound system. __________________ mac pro 2.8ghz 8-core 24gb ram 16tb hd 30" acd \| macbook air 2.0ghz 8gb ram 256gb ssd \| mac mini 2.4ghz c2d \| ipad 3 at&t 64gb black \| ipad 2 wifi 16gb black \| iphone 5 at&t 64gb black \| ipods x3
	0

Oct 18, 2006, 07:45 AM	#7
XNine macrumors 68040 Join Date: Apr 2005 Location: Why are you wearing that stupid man suit?	One thing is for sure. This guy has some kick ass parties with that thing going! __________________ On Diebold: "i went to get cash last night and ended up voting republican. wonder how much that's gonna cost me." -Zimv20
	0

Oct 18, 2006, 11:33 AM	#8
OutThere macrumors 601 Join Date: Dec 2002 Location: the good life	We did that in my freshman physics course in high school...it was pretty awesome. My teacher hooked up his guitar amp to a small speaker that he fit to the end of the pipe, and rocked out for an entire lab period while we were just mesmerized. It's much better in person, and with the lights out and shades totally shut, naturally. __________________ puisqu'on est jeune et con, puisqu'ils sont vieux et fous. . .
	0

Oct 18, 2006, 11:40 AM	#9
yellow Demi-God (Moderator) Join Date: Oct 2003 Location: I love you, food.	That's pretty darned cool.
	0

Oct 18, 2006, 12:38 PM	#10
®îçhå®? macrumors 68000 Join Date: Mar 2006	That does look rather cool. I might have to show it to my electronics teacher and see if we can do it. __________________ If everyone is unique then no one is as they share uniqueness in common.
	0

Oct 18, 2006, 01:28 PM	#11
Jesus macrumors 6502 Join Date: Apr 2005 Location: On a Higher Spiritual Plane known only to Gods and those who consume large quantities of hallucinogens	You can do the same thing with water, as they do at the exploratorium, since what this is doing is showing the shape of sound waves, through its effect on an object. If anyone on these boards is impressed by this, eithergo down to the exploratiorium or try it yourself. AS others have said, it really is more impressive in person. __________________ µ
	0

Oct 18, 2006, 02:17 PM	#14
Jesus macrumors 6502 Join Date: Apr 2005 Location: On a Higher Spiritual Plane known only to Gods and those who consume large quantities of hallucinogens	I was refering to the the San Francisco Exploratiorium, where do you think Jesus lives!!!! __________________ µ
	0

Oct 18, 2006, 04:17 PM	#15
Doctor Q Thread Starter macrumors god Join Date: Sep 2002 Location: Los Angeles	In what medium are the standing waves created -- the air? Do the standing waves result from a multiple of a fundamental frequency or from reflected waves? Is a fundamental frequency the same as a resonant frequency? I need to brush up on my fluid dynamics, which was the physics class I had the most trouble with. __________________ Oh do pay attention 007. In the wrong hands, this cylindrical 12-core Mac Pro with three 4K displays, FirePro graphics, and Thunderbolt 2 could be very dangerous.
	0

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