On Sat, 20 Oct 2007, Kyle R. Mcallister wrote: > Find a low wattage bulb, like used in refrigerators for the magic light > that has helped millions of people worldwide be able to see what they're > getting for that midnight snack. Tubular bulbs like used in music stand > lights work well too. Buy a bunch of different kinds, from different > brands. Some of them will not fluoresce in the usual way; the glass will > glow green. It's interesting, but be aware, you are irradiating yourself.
Bingo, that's it! I should carry around a small handheld TC so I can test small bulbs. > I got a Geiger counter to register about 10 times background through a > wooden door, about 20 feet from the running device. Closer you get, more > counts. At about 6 feet from the thing, sounded like static on a TV. If > you are courageous enough to stand near it for a few seconds to > experiment with this, you will find you can move the green spots on the > glass face of the bulb around with a magnet; they are in beams. Cool! That's what Tesla reported. He also supposedly reported that, at high enough voltage, the corona discharge comes right out into the air and forms long narrow beams which are easily moved around by a magnet. See this old article: Electrical Experimenter, June 1919 http://amasci.com/graphics/tesla_bulbs1.jpg http://amasci.com/graphics/tesla_bulbs2.jpg Also this is supposed to fail with a spark-gap Tesla coil, and needs CW. I strongly suspect that Tesla based an entire secret technology on this effect: primarily to create miles-long "virtual wires" which conduct high voltage and can be used as power lines or antenna towers for both receiving and sending. So if Tesla at Colorado Springs had ten-mile vertical antenna towers made of ionized air, then he was probably getting VLF phenomena that nobody else could detect. If true, he kept it secret, hence the total disbelief on the part of the science community. No replication? Not even publication. > Another experiment I did once, which I will not explain exactly how to > do, as I figure someone will kill themselves, used a five stage Marx > generator driving one of these tubes. The green glow from each flash was > bright enough to cast shadows. Once, I ran it too long and the filament > began to glow yellow, probably from electrons being ripped out of it. Heh. See my next message about radiation danger (((((((((((((((((( ( ( ( ( (O) ) ) ) ) ))))))))))))))))))) William J. Beaty SCIENCE HOBBYIST website billb at amasci com http://amasci.com EE/programmer/sci-exhibits amateur science, hobby projects, sci fair Seattle, WA 425-222-5066 unusual phenomena, tesla coils, weird sci
