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No it wasn't the media this time.
Quote:
Originally Posted by Graplr
I've seen -25.5C on temp sensor this winter. And it has registered in the -20sC more than a few times. Right now we are in a 'heat wave'. It is 43F out. Before this, I think we had been below freezing for close to a month. But it won't last. Tomorrow has a low of -16F and Wednesday a high of -1F forecasted.
BTW, wind chill is the biggest load of bs ever. Say it is the temperatures that were stated above. -31C and -49C with the windchill. Say I stand butt naked outside. There is NO POSSIBLE way my body could ever cool past -31C down to the wind chill 'temperature' of -49C. You can't get colder than the air temperature. It can FEEL more bitter with the wind, but all that needs to be said is, it is such and such temperature and WINDY...not that the wind chill is such and such.
Wind chill was created by the media (TV meteorologists) for shock value. Typical news people.
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"The original wind chill formula was derived from experiments conducted in 1939 by Antarctic explorers, Paul Siple and Charles Passel. These hardy scientists measured how long it took for water to freeze in a small plastic cylinder when it was placed outside in the wind. Over the years, the formula was modified somewhat, but remained based on the Antarctic experiments."
This formula was obsolete and in certain circumstances created confusion. Thus in april 2000 Environment Canada held an Internet Workshop [sic] on wind chill for it to be better adapted to reality. Rather than be based on a water cylinder, "the new index is based on a model of how fast a human face loses heat. We chose the face because it is the part of the body most often exposed to severe winter weather, assuming the rest of the body is clothed appropriately for the weather". Reading of the assumptions taken into account for this new index is relevant. Here is an example of these assumptions: "It [the wind chill] uses a calm wind threshold of 4.8 km/h; this value has been obtained by observing the speed at which people walk at intersections."
In case you want to read more: http://ptaff.ca/humidex/?lang=en_CA
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1987 300TD 309, xxx 2.8.2014 10,000 mile OCI
Be careful of the toes you step on today, as they may be connected to the ass you have to kiss tomorrow. anonymous
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