Page 18 - Demo

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WAVES & SOUND, continued
Wave Demonstrator
Make waves with this 1.8-meter helical spring to demonstrate standing, transverse and longitudinal wave properties.
Slinky®
The original Slinky®—it stretches, snaps back and will actually walk down stairs. Great for wave demonstrations.
Dual-Trace, 30-MHz Oscilloscope
A large, high-luminance CRT screen makes this dual-trace oscilloscope an excellent choice for student laboratory work. The compact unit is designed for continual student use. Compliant with international standards, its key features include two channels and dual trace, a 6" rectangular CRT with internal graticule, high-sensitivity triggering, 10X sweep magnification, DC up to 30-MHz bandwidth and TV synching separator circuit.
AP5616 I $670.75
AP9023 I $28.35
AP1957 I $9.55
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Sonic Flame Tube—Demonstration Kit
16
A Sonic Flame Tube, or Ruben’s tube, lets students visualize waves and resonance. Natural gas flows through a 3' aluminum tube with evenly spaced holes and is ignited. A speaker on one end sends a frequency of sound wave through the tube, creating resonance. The flames above the holes move with the frequency in a wave of nodes and antinodes. Includes materials for a permanent flame tube, complete instructions, safety information and tips.
AP7363 I $75.90
FLINN SCIENTIFIC I WAVES & SOUND