alt Hacker NewsDoes it bother you when you see flourescent lighting that's connected to 50/60 Hz mains power and you just see violent flashing?
(edit: This isn't snark, I can't see changes that fast, but I know what they look like slowed down and that other people may be different to me.)
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Most lights try to avoid flicker in the design, but bad/failing ones can drive one nuts. E.g. fluorescents flicker at 120 Hz (2 crossings per cycle) but the phosphor coating carries some glow and that they stay on for ~80% of the cycle time anyways makes it a lot more bearable that if it were an idealized instantaneous 50% duty at a 60 Hz rate.
God bless LEDs with some capacitance though...
Not the OP, but yeah that used to bother me when I was younger.
As did any CRTs running below 75hz
My “super power” used to be that I could tell what refresh rate a VDU was operating at just by looking at it. Well, I couldn’t tell past 80hz. But anything below that I could.
Fifteen years ago I started to develop mild neurological symptoms. Mostly headaches, some minor muscle twitches, and some weird vision issues. I started working with first my GP and then with a neurologist to try to get to the bottom of it. The investigation was leading towards some form of optic neuropathy. In parallel I moved to a new job. All of my symptoms went away and in retrospect at the time all of the symptoms had started when I'd started that job. The fluorescent lighting near my desk there was terrible and as far as my doctors and I could figure out that was likely the cause of it.