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On another planet, a long time ago I used to teach telegraphy and demonstrate how radio waves would travel by lighting up fluorescent tubes by tickling the radio wave across from a transmitter to the tube, this then lit up the tube with no visible connection.
Thanks Janet and Mike for your comments. I think a torch would have been much more your style Janet but I don't think modern bulbs in such an isolated setting would have been... inspiration flows from this site and its contributors, thank you! You aren't far off Mike - yes electromagnetic waves but not radio... Deep blue/ near UV (405nm) from a screen pointer laser, a free introductory from Wish. All the white LEDs start out UV and have a phosphor to convert to white. It is quite startling when you shine one of these lasers at one! (I can't recommend getting anything other than minimal power pointers... there are so many for sale that are not remotely eyesafe.... and would require automatic shutdown door interlocks for industrial use!)
Very cleverly done, Andrew! I have a green laser, Which I've used for digital presentations, and often thought I could put it to some use like this, but feeling a bit inspired now! I also have a UV torch, which can create good effects, think I might upload one next... 😃👍
Trev 😀
Trev 😀
Andrew.
