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E2-47: TWINKLING STAR 8 years 6 months ago #405

  • zzfixk23
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ID Code: E2-47
Purpose: Show how air currents cause the "twinkling" of a star.
Description: A laser beam is directed on a distant wall or screen. When the heater is positioned below the laser beam, hot air convection currents and density changes cause the beam to move continuously, or "twinkle."
Availability: Available

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