Image:Tesla discharge through boys body.jpg
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[edit] Summary
| Description |
Time exposure photo of a student conducting a discharge through his body from a Tesla coil, of a type known at the time as an Oudin coil, at Los Angeles Polytechnic High School around 1909. The arcs are 16 inches (41 cm) long, corresponding to a voltage of around 200kV. The subject doesn't feel a shock and is apparently unharmed. It was believed until recently that this was due to skin effect: the high frequency current doesn't penetrate into the body but travels along the skin, so it cannot cause electrocution, only skin burns. The student uses a metal rod to avoid skin burns. However, it is now thought that Tesla coil discharges can travel through the interior of the body, causing damage, and the subject doesn't feel a shock because the nerve cells are not sensitive to these high frequency currents. Therefore THIS EXPERIMENT IS EXTREMELY DANGEROUS AND CAN RESULT IN ELECTROCUTION. DON'T TRY IT. Alterations to image: removed caption, which read: "Taking a 16 inch discharge into the body from the Oudin resonator. Exposed 10 seconds." |
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| Source |
Downloaded from Harry La Verne Twining (July 1, 1909) Wireless Telegraphy and High Frequency Electricity, self published, Los Angeles, USA, p.54, plate 3 on Google Books |
| Date |
July 1, 1909 |
| Author |
Harry La Verne Twining |
| Permission (Reusing this image) |
Public domain - published in USA prior to 1923 |
[edit] Licensing:
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This media file is in the public domain in the United States. This applies to U.S. works where the copyright has expired, often because its first publication occurred prior to January 1, 1923. See this page for further explanation.
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| Date/Time | Dimensions | User | Comment | |
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| current | 20:29, 21 May 2008 | 697×961 (179 KB) | Chetvorno | (== Summary == {{Information |Description=Time exposure photo of a student conducting a discharge through his body from a Tesla coil, of a type known at the time as an Oudin coil, at Los Angeles Polytechnic) |
