Suspended slinky on threads for compression wave.

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(B)Waves - B+25: Travelling Waves

Longitudinal Waves in a Suspended Slinky. Slinky suspended on strings from a wooden frame. Stretched Slinky is 1 meter long. Striking one end of the spring with a palm sends a traveling longitudinal wave down the spring.
UCB Index: 
B+25+20
PIRA Index: 
3B20.10
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B+25+15 Brass spring on white plastic sheet.
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B+25+25 Mechanical water wave model, hand-cranked.