Singing Pipe - NSTA Boston- Chemistry and Physics with Bob Becker and Ron Perkins


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Singing Pipe
HS-14

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1 or more pipes:

$29.95 ea.

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Matched Pair of Singing Pipes
HS-14A

Price:

1 or more pairs:

$59.95 ea.

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Shipping Information

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This heavy, black iron pipe, about 4 pounds, has a metal alloy screen fitted into one end. By heating the screen with a flame from a burner for about 10 seconds, the vertical pipe will produce a loud tone for as much as 30 seconds. The noise is produced because certain frequencies of sound from the turbulent flow of heated air resonate within the tube cavity. Turning the tube horizontally disrupts the flow of air and the sound stops; rotating the tube to the vertical position returns the sound. Consequently, it is possible to give the illusion of pouring sound into a beaker and then returning it to the pipe. In addition, a matched pair will produce a clearly audible beat frequency. This incredible demonstration was featured at the 1996 Clemson Biennial DivCHED Convention and at the 1996 NEACT Summer Convention. Full instructions and explanation provided.

Energy Chimes

Comes complete with hard-headed mallet and is pre-assembled to provide optimal sound for interference demonstrations.

Resonance Demonstration

Provides a clear, easy-to-see demonstration of resonance.

Singing Rod

When your fingers are slid repeatedly along this 60-cm-long metal rod, an ear-piercing sound is generated. You have to hear it to believe it!

Wave Modeling Spring

Perfect for modeling standing and moving transverse waves as well as moving sound waves.