From: nobody on 25 Jul 2006 13:38
> It's about both. Fans are no more useful than evaporative cooling
> (swamp coolers).
Wrong. With totally stale air, your perspiration evaporates, providing
some cooling, but because the air is not moving, the relative humidity
levels directly near yor skin rises and this slows down sweat
evaporation and renders the process less effective.
With a fan and ambiant temperature below 37, you get cooling from the
cooler air passing by, as well as more efficient sweat evaporation sicne
you are constantly brought air that is not fully saturated with water
(aka: rtelative humidity < 100%).
With ambiant temperature above 37, the fan will not push cooler air,
but will stuff push air that will help perspiration evaporate and keep
And note that when it is very humid, temperatures do not often rise
above body temperature. The really hot temperatures generally happen in
dry climates where your perspiration works fine.
When it is 45 in Bagdhad, there is still more people dying from
american military presence than from heat. (6000 killed in the last 2
months BTW, twice as many as Ossama killed Americans once).
From: nobody on 25 Jul 2006 13:46
The Reid wrote:
> sigh, youre playing with the words. The *point* is that *man*
> *made* global warming is accepted to be a fact by most
> scientists. You are only muddying the water because you dont want
> to accept the fact.
BBC recent provided evidence that even the white house has conclusive
proof that global warming is a man made problem, that it IS happening,
and that its impacts are very serious. From day 1,. white house had a
policy of editing those reports to replace certain keywords (aga: "is"
to "might be") and add sentences such as the earth warming up for the
last 100,000 years) to provide the white house with the opportunity to
state that there is no actionalble hard evidence that global warming is
a happening. Some of the scientists who are no longer employed by the
government are starting to speak out on this and mention that they had
received orders from the white house to not speak publically about their
research. The orders didn't come from their bosses at NOAA or NASA, they
came from white house.
One president was almost sent to jail for lying about his private sexual
antics in the oval office. Another is getting away with murder, war
crimes and liying about the environmental state of the whole planet.
From: nobody on 25 Jul 2006 13:55
One more thing:
many office buildings provide insufficient ventilation and air exchange
rates. So while they may reduce temperature and humidity levels, the
concentration of gases , particles emitted by people, furniture, carpets
etc make this a very unhealthy place to spend many hours per day. This
is even worse for those buildings that shut down ventilation after work
hours to save money.
Compare to those, one can be more productive in a building that has
windows that can open and you use a good old fashioned ceiling fan.
From: Al Smith on 25 Jul 2006 14:17
>>Actually, A/C is extremely common in Asia. Singapore is famous for
>>> its extensive use of A/C, in particular.
> Have you been to Singapore? Plenty of people don't use AC, unless you
> are talking about office towers and shopping malls. Visit some
> residential areas sometime, you'll see curtains flapping in the wind.
> You'll also see thousands upon thousands eating at open-air restaurants.
> I live a few hours up the road from Singapore, and I sure don't use it.
> With a cross-breeze and a fan it's perfectly nice in here. According to
> my trusty thermometer it's currently 81F/27C indoors, at 2pm (hottest
> part of the day, and it hasn't even rained yet to cool things off).
> Marble floors, a thick, insulating roof, and windows on two sides make a
> big difference.
> When I go to people's houses I would say about 1 in 5 have the AC on
> (usually foreigners), despite the fact that almost all of them could
> easily afford it.
Air conditioning is a crutch. Maybe they need it in Phoenix. It
might be argued that people shouldn't even be living in places
where air conditioning is essential.
From: TOliver on 25 Jul 2006 15:28
"Al Smith" <invalid(a)address.com> wrote ...
> Air conditioning is a crutch. Maybe they need it in Phoenix. It might be
> argued that people shouldn't even be living in places where air
> conditioning is essential.
Speaking of "crutches", heating is an equal or larger one. Why should
anyone bother to live where it's cold, other than to spend the warm and
pleasant months there?
As for the Mixed Maniac's 33C with 31% humidity, that's positively
salubrious, cool enough to play tennis or 18 holes in the afternoon, so dry
that the sweat disappears before you feel it dripping from your brow.