Moving stuff with sound

[clickclickw00t 10+ year member]

Scientists use sound waves to lift and move objects, make cup of joe in mid air

Pretty interesting read. 160+dB @ 24k hz? I wonder what kind of speakers can accomplish this.

Click to read more...

 

[RangerDangerV2 5,000+ posts]

I can do a 165 in the port at 33hz.... 63@20hz.... and thats with 1kw and sa12s //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif

 

[clickclickw00t 10+ year member]

I can do a 165 in the port at 33hz.... 63@20hz.... and thats with 1kw and sa12s //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif

re-read the post and article. They are doing 160+ at 24,000 hz!

 

[RangerDangerV2 5,000+ posts]

re-read the post and article. They are doing 160+ at 24,000 hz!

so? you cant even hear that high... lmao

 

[clickclickw00t 10+ year member]

so? you cant even hear that high... lmao

did you even read the article? they are actually pouring a cup of coffee using sound pressure to move stuff. apparently it takes about 160+dB to create enough pressure to move stuff, but they are using super high frequencies of 24,000 Hz. how can you get such a high dB rating at such a high frequency? It's not about what you can hear, but actually creating 160dB+ with a speaker @ 24kHz that amazes me

 

[RangerDangerV2 5,000+ posts]

did you even read the article? they are actually pouring a cup of coffee using sound pressure to move stuff. apparently it takes about 160+dB to create enough pressure to move stuff, but they are using super high frequencies of 24,000 Hz. how can you get such a high dB rating at such a high frequency? It's not about what you can hear, but actually creating 160dB+ with a speaker @ 24kHz that amazes me

yes, I did read it... sort of old news. you can do a lot with sound... weld, levitate, destroy. etc.

 

[T3mpest 10+ year member]

did you even read the article? they are actually pouring a cup of coffee using sound pressure to move stuff. apparently it takes about 160+dB to create enough pressure to move stuff, but they are using super high frequencies of 24,000 Hz. how can you get such a high dB rating at such a high frequency? It's not about what you can hear, but actually creating 160dB+ with a speaker @ 24kHz that amazes me

Dan Wiggins who used to own adire audio and invented XBL^2 tech used to design acoustic levatation devices for the military. I remember he said firing it at close range next to a concrete block and he could put burn marks on the concrete.. It's invariably a horn loaded design, probably a front loaded or tapped horn array with a very narrow bandwidth both in off axis response and frequency response.. Alot of energy over a very small area. Actual speaker type, maybe some sort of ribbon, not many speaker go to 24khz without inductance rolling it off. Probably all kinds of copper or even silver in the design, stupid expensive I'm sure haha.

 

[Dirtrider4eva 10+ year member]

kind of an offshoot. but if you think about moving things with sound, there has been theories about doing a similar act in reference to the pyramids. no amount of human force could move the 400 ton blocks of stone. how do you think they did it? im not saying it happened, but its definitely possible. the beauty of sounds is although we understand it, we dont utilize what its possibilities are.. as a tool for movement, a killer that travels through all surfaces, sound is pretty **** interesting..