Jeff Thompson | Blog » sound http://www.jeffreythompson.org/blog Fri, 03 Feb 2012 16:48:16 +0000 en hourly 1 http://wordpress.org/?v=3.3.1 John Cage Playing Amplified Cacti http://www.jeffreythompson.org/blog/2012/02/02/john-cage-playing-amplified-cacti/ http://www.jeffreythompson.org/blog/2012/02/02/john-cage-playing-amplified-cacti/#comments Fri, 03 Feb 2012 02:57:07 +0000 Jeff Thompson http://www.jeffreythompson.org/blog/?p=2258

John Cage playing amplified cacti… enough said.

]]> http://www.jeffreythompson.org/blog/2012/02/02/john-cage-playing-amplified-cacti/feed/ 0 Sound Invisibility http://www.jeffreythompson.org/blog/2012/01/13/sound-invisibility/ http://www.jeffreythompson.org/blog/2012/01/13/sound-invisibility/#comments Fri, 13 Jan 2012 16:59:17 +0000 Jeff Thompson http://www.jeffreythompson.org/blog/?p=2193

Fantastically-interesting project detailed at Physics World – Martin Wegener, Nicolas Stenger, and Manfred Wilhelm of the Karlsruhe Institute of Technology in Germany built the device above which can cloak objects from sound waves.  The rings around the center are filled with soft plastic and an object to be cloaked is placed in the center hole.  Because of the design of the rings, sound waves approaching the object are bent and re-emerge on the other side exactly as they came in.  There are no acoustic reflections off the object whatsoever.

Via: Physics World (thanks Stephen Shingler)

]]> http://www.jeffreythompson.org/blog/2012/01/13/sound-invisibility/feed/ 0 Characteristics of Sea Reverberation http://www.jeffreythompson.org/blog/2012/01/02/characteristics-of-sea-reverberation/ http://www.jeffreythompson.org/blog/2012/01/02/characteristics-of-sea-reverberation/#comments Mon, 02 Jan 2012 16:58:19 +0000 Jeff Thompson http://www.jeffreythompson.org/blog/?p=2146

Found deep in my photo library today.

]]> http://www.jeffreythompson.org/blog/2012/01/02/characteristics-of-sea-reverberation/feed/ 0 VERSUS http://www.jeffreythompson.org/blog/2011/12/12/versus/ http://www.jeffreythompson.org/blog/2011/12/12/versus/#comments Tue, 13 Dec 2011 02:43:30 +0000 Jeff Thompson http://www.jeffreythompson.org/blog/?p=2052

VERSUS by David Letellier (via: Triangulation Blog)

]]> http://www.jeffreythompson.org/blog/2011/12/12/versus/feed/ 0 “Equilibrium Variant” http://www.jeffreythompson.org/blog/2011/12/09/equilibrium-variant/ http://www.jeffreythompson.org/blog/2011/12/09/equilibrium-variant/#comments Fri, 09 Dec 2011 15:44:12 +0000 Jeff Thompson http://www.jeffreythompson.org/blog/?p=2013

“Equilibrium Variant” by Roberto Puliese

Via: Music of Sound

]]> http://www.jeffreythompson.org/blog/2011/12/09/equilibrium-variant/feed/ 0 Peter Bosch and Simone Simmons http://www.jeffreythompson.org/blog/2011/12/08/peter-bosch-and-simone-simmons/ http://www.jeffreythompson.org/blog/2011/12/08/peter-bosch-and-simone-simmons/#comments Thu, 08 Dec 2011 15:51:30 +0000 Jeff Thompson http://www.jeffreythompson.org/blog/?p=2005

Very nice, somewhat low-tech kinect works with a strong sound component by Peter Bosch and Simone Simmons.

]]> http://www.jeffreythompson.org/blog/2011/12/08/peter-bosch-and-simone-simmons/feed/ 0 Amp Ball http://www.jeffreythompson.org/blog/2011/11/25/amp-ball/ http://www.jeffreythompson.org/blog/2011/11/25/amp-ball/#comments Fri, 25 Nov 2011 19:50:52 +0000 Jeff Thompson http://www.jeffreythompson.org/blog/?p=1924

Had a dream last night of a van pulling a huge pile of amps, tied together with rope.

]]> http://www.jeffreythompson.org/blog/2011/11/25/amp-ball/feed/ 0 Optimal Angle For Blowing A Bottle http://www.jeffreythompson.org/blog/2011/08/13/optimal-angle-for-blowing-a-bottle/ http://www.jeffreythompson.org/blog/2011/08/13/optimal-angle-for-blowing-a-bottle/#comments Sat, 13 Aug 2011 23:33:13 +0000 Jeff Thompson http://www.jeffreythompson.org/blog/?p=1699

It turns out the optimal angle for blowing air onto the lip of a bottle to make it whistle is just about 15 degrees…

]]> http://www.jeffreythompson.org/blog/2011/08/13/optimal-angle-for-blowing-a-bottle/feed/ 0 Crystler air raid siren http://www.jeffreythompson.org/blog/2011/06/18/crystler-air-raid-siren/ http://www.jeffreythompson.org/blog/2011/06/18/crystler-air-raid-siren/#comments Sat, 18 Jun 2011 18:54:47 +0000 Jeff Thompson http://www.jeffreythompson.org/blog/?p=1354

Chrysler air raid siren, running on a V8 engine. Listen to the siren starting up:

More fantanstic sound samples at VictorySiren.com.

 

]]> http://www.jeffreythompson.org/blog/2011/06/18/crystler-air-raid-siren/feed/ 0 Table Of The Relative Frequency Of Occurance Of The Causes Of Breaking Plate Glass Windows http://www.jeffreythompson.org/blog/2011/06/18/1351/ http://www.jeffreythompson.org/blog/2011/06/18/1351/#comments Sat, 18 Jun 2011 16:50:59 +0000 Jeff Thompson http://www.jeffreythompson.org/blog/?p=1351

Charles Babbage’s “Table Of The Relative Frequency Of Occurance Of The Causes Of Breaking Plate Glass Windows”, printed in Mechanics Magazine (Vol. 66, 1867).

Via: Google Books

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