[time-nuts] PC clock generator without 14.318MHz
hmurray at megapathdsl.net
Wed Oct 19 01:00:16 EDT 2016
jimlux at earthlink.net said:
> What I need is that really boring single camera watching from a single
> viewpoint with a high resolution counter in the field of view. The "big
> countdown clock" at KSC doesn't show fractions of a second.
What's the technology for that clock? I'll guess that was before LEDs so
they probably used glowing metal. How long does that take to heat up when a
segment turns on or cool down when a segment turns off? Could you recover
the camera frame offset by carefully examining the intensity in a few frames
around each second tick?
These are my opinions. I hate spam.
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