From: Mxsmanic on
dgs writes:

> Dying from the heat requires air conditioning?

Preventing death from the heat requires air conditioning.

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From: Mxsmanic on
nobody writes:

> You *can* die from heat. You WILL die from cold.

You can and will die from extremes in either direction.

> In heat, you can survive without air conditioning.

No, you cannot, beyond a certain point. You must have a way of
removing body heat, and that requires active cooling. The body's own
evaporative cooling is only reliable up to a certain (modest)
threshold of heat; thereafter, external cooling is mandatory, or
hyperthermia and death will ensue.

> Drink lots, have a fan, dress properly. No problem.

See above. In high temperature and humidity, a fan and drinks will
not suffice, as they will not be able to remove body heat quickly
enough through perspiration to prevent hyperthermia.

Using a fan also raises temperature and humidity.

> If you turn off your air conditioning and follow the above,
> you will have gotten used to it within days.

Modern cities in hot climates cannot function without air
conditioning.

> The human body is built to have its own cooling (it is
> called sweat).

The human body survives by sweating only within narrow limits.

> And you can survive even when outside temperature exceeds
> body temperature.

Only within narrow limits and under certain conditions.

> In cold, if you do not have proper clothing, you will
> die and/or lose limbs to frostbite.

Yes. However, with the right clothing, you can tolerate any cold air
temperature that you are ever likely to encounter on the Earth's
surface.

> And you still need to drink and eat properly. And
> remember that at night, you need extra warm sleeping bag because your
> metabolism slows down and you generate less heat.

You just need warm clothing, be it a sleeping bag or something else.

> It is easier to learn to survive in heat than in cold.

No, it's just the opposite. You can survive cold with protective
clothing alone. In heat, you must have active cooling.

> At 40C, you are only 20 degrees from optimal temperature. But at -20,
> you are 40 degrees from optimal comfort temperature.

But at 40 C, heat must be actively removed from your body, whereas at
-20 C, you need do nothing more than conserve a portion of the heat
your body produces.

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From: mrtravel on
Mxsmanic wrote:

> Using a fan also raises temperature and humidity.

I use a fan to remove heat from the room.
I also use fans to remove heat from my car.
From: Miguel Cruz on
Dave Frightens Me <deepfreudmoors(a)eITmISaACTUALLYiREAL!l.nu> wrote:
> Where have you been visiting lately? Apparently not Europe, or you'd
> be visiting rte more!

Spent a month in Europe around May but was kind of on autopilot. Two
weeks in Holland, then went down to Sevilla for Feria season. Couldn't
get a flight to Sevilla (everything full), so I looked on the map and
the closest place with cheap flights turned out to be Faro, Portugal, on
Transavia. It only looked to be a couple hours away from Sevilla on the
map, so I figured there'd probably be hourly trains or something.

Boy was that guess wrong. I got there and there wasn't even daily
scheduled bus service - I arrived on Saturday and the next bus was
Monday. No train at all (except via Lisbon!). Finally on Sunday someone
tipped me off to a secret bus, the existence of which had been denied by
everyone else, that made the trip in only about 4 hours.

Feria was quite a sight though.

At the same time, the cultural monotony of Sevilla is unsettling. A
giant city, with something like 6 restaurants (not including fast food)
that aren't Spanish/French/Italian. Every one of those 6 was full of
foreigners and (by their accents) madrilenos, not a sevillano in sight.

It's very beautiful, but I can't deal with Spain for long.

> Me, I got married and moved to Italy, and am loving every baking
> moment of summer!

Congratulations. Does this mean you'll be settling down in one place?

miguel
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From: Keith W on

"Mxsmanic" <mxsmanic(a)gmail.com> wrote in message
news:p4k8c2tafupt1ghrovmghsrjgs4ki0ni0b(a)4ax.com...
> nobody writes:

>
> See above. In high temperature and humidity, a fan and drinks will
> not suffice, as they will not be able to remove body heat quickly
> enough through perspiration to prevent hyperthermia.
>

And yet people survive in Asia and Africa without AC,
refrigeration or fans


> Using a fan also raises temperature and humidity.
>

Really

How precisely does a fan manufacture water ?


Keith



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