21st century problem

[Chris Holford]

In article , Richard Tobin writes

They never did!! -the brightness peaked on the positive AND negative parts of the waveform; so twice per cycle, i.e. 100HZ

[Grimly Curmudgeon]

I hope they're spinning at the right frequency. Oh, the irony if they're not.

[Johny B Good]

Sorry! I just can't resist! :-)

It would have been more accurate if he'd rephrased that as:

"I'm not actually clever enough to use them anymore tho."