From: <ja...@wi...> - 2003-02-01 16:22:55
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At 11:42 AM 2/1/2003 +0000, bazyle butcher wrote: >London has been paralysed for two days by "severe weather" ie nearly 2 >inches of snow. I need a snow detector to get me out of bed an hour earlier >to avoid the people who don't drive Landrovers and like to park on motorways >in such conditions. >I was thinking of a shrouded light cell pointing at the ground and measuring >the extra light reflected when the outside light is turned on. Trouble with >this is it won't detect 'more snow' condition. >Anyone using anything else? Personally, I use "The Wife"(TM)... very useful for other applications as well. The problem I would see with your light reflecting proposal is that at our house, most of the areas that would get 'new' snow (i.e. driveway) also get tonnes of light during the day, so it might activate when it wasn't supposed to. cheers, Jack |