I was after a homemade rolled cap that would be cheap and reliable enough to use instead of the expensive MMC’s for a Tesla coil.
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This was an attempt to rectify high voltage, high frequency AC to DC. It didn’t really work.
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A Geiger counter measures various types of ionising radiation such as Gamma rays. Shown here with antique Uranium marbles that were bright due to some fluorescence.
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A sampler of mildly radioactive mineral sands mined locally.
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The spinthariscope made from around the house materials demonstrates INDIVIDUAL radioactive decays.
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I have made a third much smaller nitrogen laser but with higher power and it can be fired a lot faster.
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My second (successful) attempt at a transverse excited atmospheric pressure (TEA) nitrogen laser and why it worked.
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My first (unsuccessful) attempt at a transverse excited atmospheric pressure (TEA) nitrogen laser and why it didn’t work.
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A low powered red laser seen here. Remember the laser-in-the-groin-shots in Bond’s Gold Finger? Careful Justin!
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A working HeNe tube is shown below running at 2 kV with a 330 kohm resistor. It takes about 3 – 4 kV to trigger. It is shown firing through a 15,000 lines per inch diffraction grating and shows the first order spectra.
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