[time-nuts] webcam app to watch for and time stamp changes

Poul-Henning Kamp phk at phk.freebsd.dk
Sun Mar 3 13:09:41 EST 2013

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In message <51336234.3090105 at earthlink.net>, Jim Lux writes:

>> Most LCD and LED clocks have a shielding metal-coating on the front
>> glass, exactly to eliminate all EMI/EMC issues.
>Yes, but perhaps there's enough leakage to make this work.

Think for a moment about how little power the electronics consume
in the first place, then do the math.

You'll need a very (radio-)quiet place to measure in...

Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
phk at FreeBSD.ORG         | TCP/IP since RFC 956
FreeBSD committer       | BSD since 4.3-tahoe    
Never attribute to malice what can adequately be explained by incompetence.

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