Re: Time clocks

"Icebound" <[EMAIL PROTECTED]> wrote in message
news:[EMAIL PROTECTED]
 > Actually, they do not use as much "existing" ice as you may think.  They
> rip up a good layer of it and basically lay down their own.  They
> already embed the temperature sensors that they use to feed their
> computer information during the competition, so they defintely rip deep
> enough to embed any electronic sensor, should it be useful to do so.


Well, the term rip up conveys much more violence than is actually involved.
Hockey ice is commonly 2 to 2-1/2 inches thick. The ice maker coming into a
skating rink will immediately scrape the ice down to the approx. 1-1/4
inches thick of typical curling ice, but they don't "rip-up" the ice and
re-install it. As to embedding the temperature probes, it's a simple thing
to melt a small hole in the ice near the boards for a small wire. A
completely different thing to embed a sensor nearly a foot long under both
hog lines on every sheet, and get the wires to the side of the rink. Might
be practical in a curling rink, where it can be done at the start of the
season, but not in a  rink where the installation is temporary.