21 Nov
2006
21 Nov
'06
4 p.m.
> All of the offices in the new college building
have
> those infernal
> contraptions. Even in the library. NON-ADJUSTABLE
> at that! Every few
> minutes, you have to get up and do jumping jacks to
> get the lights back
> on. An insidious plot to promote physical fitness.
Umm didn't like jumping jacks go out with Jack La
Lanne LOL?? Are there any findings to suggest that
there are any REAL health benefits associated with the activity??
Hmmm,
Me thinks that we are forgetting the benefits of a 555 timer, and an I/R
LED. Looks like somebody moving *all* of the time, and probably runs
for a year on a single 'D' cell.
(Bet they didn't see that coming)
--
Doug Jackson
22 Nov
22 Nov
8:45 a.m.
On 22 Nov 2006 at 11:00, Doug Jackson wrote:
Me thinks that we are forgetting the benefits of a 555
timer, and an I/R
LED. Looks like somebody moving *all* of the time, and probably runs
for a year on a single 'D' cell.
At least on the receptacle-box units that I've seen, the duration of
the on-cycle as well as the sensitivity can be adjusted by means of a
couple of pots located on the body of the sensor, behind the cover
plate.
Cheers,
Chuck
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