NEW DEMOS
1 - Circuit Puzzle2 - Doppler RocketO.1 (1) Ray Optics Laser System1 - CIRCUIT PUZZLE
This is a circuit that looks very much like the canonical series circuit, but the switches and ligths don't do what is expected.
What components can be added to this circuit to give the observed behaviour? One could think about the effects of commmon components such as resistors, inductors, capacitors, diodes, transistors, etc. It doesn't involve magnets or radio frequency transmitters.
Solution: Diodes provide coding and decoding by phase of the AC current. A diode is put in parallel with th each switch and light.
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W.8(4) - DOPPLER ROCKET
The Doppler Rocket emits a sinusoidal sound waveform at a constant frequency of approximately 620 Hz. As the rocket passes the students, they hear a noticebale shift in frequency.
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O.1(1) - RAY OPTICS LASER SYSTEM
This demonstration uses a Laser Ray Box (Wavelength - 635 nm) that project 5 parallel laser beams onto various flat surfaces. It contains a five 1 mW diode lasers. The optic set includes six magnetically-backed templates.
