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Bass drum physics: Vortices

Posts: 5176 Threads: 188
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What happens to the air inside your bass drum when you strike it?

[ame]http://www.youtube.com/watch?v=vfOb39Ud2p8[/ame]

[ame]http://www.youtube.com/watch?v=7bvtvWxtI78[/ame]

[ame]http://www.youtube.com/watch?v=jfVXKWqlJRc[/ame]

"God is dead." -Nietzsche

"Nietzsche is dead." -God
Posted on 13 years ago
#1
Posts: 5176 Threads: 188
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And the idea taken a bit further....

[ame]http://www.youtube.com/watch?v=IyAyd4WnvhU&feature=related[/ame]

"God is dead." -Nietzsche

"Nietzsche is dead." -God
Posted on 13 years ago
#2
Posts: 5176 Threads: 188
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Of course, this is in the case of bass drums with holes cut into the front heads! ;) I just thought it might bring some smiles!flowers2Cool Dude:)

"God is dead." -Nietzsche

"Nietzsche is dead." -God
Posted on 13 years ago
#3
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Awesome! Thanks for sharing!

I saw a drummer once playing with dry ice in his bass drum, and he blew rings through the porthole of the resonant head with every kick, more noticeably when there were long pauses between notes (like between songs, and the first kick of the next song would be the most visual ring).

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Posted on 13 years ago
#4
Posts: 1273 Threads: 22
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Does JC Whitney sell those cannons?

B

Vintage Drum Fan (Not a Guru)
Posted on 13 years ago
#5
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makes me wanna try this.....I wanna see what happens INside the drum though...

Posted on 13 years ago
#6
Posts: 5176 Threads: 188
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Get a clear Vistalite bass drum; cut a hole on the front head -dead center and fill with some kind of smoke and then observe what happens when you punch the pedal!

"God is dead." -Nietzsche

"Nietzsche is dead." -God
Posted on 13 years ago
#7
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Been there and done that back in college...:D

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Posted on 13 years ago
#8
Posts: 5176 Threads: 188
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I might try this experiment with my Zickos "Supersonic" bass drum! (What else am I going to do with it!? lol!)

I kind of discovered this effect, for myself, one day a few years ago. I was playing an empty blue plastic water bottle (the big kind used for office water coolers). One of my cats walked into the room and I pointed the small end of the bottle at her and then did a palm strike to the large end. She was at least 15 feet away and when the vortex hit her, she jumped straight up! I would have liked to have seen the smoke ring of that one!

"God is dead." -Nietzsche

"Nietzsche is dead." -God
Posted on 13 years ago
#9
Posts: 1273 Threads: 22
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Ohhhhhh, you have to video tape that! (I really like cats, but I like funny cat videos better.) Good stuff.

B

Vintage Drum Fan (Not a Guru)
Posted on 13 years ago
#10
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