Dr. David Kirkby wrote:
Chuck Harris wrote:
I bought some of the LED replacements for Edison bulb incandescents, and
they have an afterglow that lasts for several minutes. It is very much
dimmer than when they are turned on, but is there none the less.
-Chuck
I got one of these so called 2D fluorescent tubes in a packet and bought
it home on the train late in the evening. The trains are electric with
cables overhead. What was strange was that the lamp was glowing dimly in
the packet - I can only assume the E field from the overhead cables for
the train was the source of power.
Dave
I should have added, it carried on glowing for some time after I got home too.
At that point, I was well away from the train lines, though we do have 11 kV
overhead cables around 30m from the house. It eventually stopped glowing so I
assume it was the presence of the overhead train lines which caused this.
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