Yes, you explained enough, but how is the organs endangered through a bikeride?

Enough heat must be generated to dry the blanket and it doesn't, as you said, have to be very high. But it does have to be high enough to be capable of causing evaporation and as far as i'm concerned water evaporates only at certain temperetures at certain speeds.

Wouldn't you have to start sweating if your body starts to cause evaprorarion?

You would only begin sweating if your body decided that it needed to get rid of heat at a faster rate, i.e. if it sensed that your organs were in danger.

No...you are thinking of boiling. You are thinking of water transitioning to gas. That is not what happens with evaporation. In evaporation, the water from your sweat is diffusing into the air, not boiling off into it (water vapor, not water gas). Evaporation is more a product of the surface area and mass vs heat input. On the molecular level, water molecules are always moving around, on the surface, some molecules manage to escape from the rest and go off into the air. Eventually, all the molecules escape this way. If you add more energy to these molecules, such as with heat, then they move faster, and consequently escape at a higher rate.

When does water freeze? Your blood does contain water doesn't it? Seriously, go to Antarica and stay allive for a day.  .Be a bit more serious man.

Whoah! I forgot about this thread. Anyway, Im not gonna get into anything new  in this thread cuz I'll end up forgetting to come back and check on it, so I'll stick to clarifying what I said.



Yes it does. I never said I could survive in antarctica for a day without a coat. My point was, after I got used to the winter here, I could spend a good 15-20 min outside in my tshirt without feeling too uncomfortable. If I spent enough time outside in the cold, yeah, my blood could freeze, but its not going to in 15-20 min.
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Okay aquatus1 her's another one i thought up for you to solve since the sweating one is getting a bit rammed into the ground,

When your blood speed rises, your heart starts beating faster, you'd start breathing faster because you'd be bumping more carbon dioxide.  However this only noramlly happens when your muscles and other organs needs more oxygen because of working harder than normal.  You'd start to become light headed and stuff like that.  I'd sit still on the ground and start breathing a lot faster and i'd become warmer aswell as light headed and uncomfortable.  As was previously mentioned, they guy doing the exercise is relaxed and doesn't seem perplexed or uncomfartable.
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The difference here is in the source of the heat production. When you are exerciseing, or riding a bike, the heat is coming from your muscle movement, and the energy they are generating. The working of a muscle uses dramatically more energy than any other organ. It is also fairly efficient in that it demands and gets pretty much exactly what it needs in terms of oxygen and energy from the body. If you were to force it, such as increasing your oxygen level without a need for it by your muscles, then you would feel light headed. If, however, you simply take in as much oxygen as you need, you feel normal. The guy you are talking about was doing any sort of muscle work. His heat came from an increase in his metabolism, i.e. in the production of energy from his blood cells as opposed to his muscles. The energy demands for this are much lower than they are for the huge muscle systems the body has, so much less oxygen and energy is needed. This is why he doesn't seem all that bothered. He doesn't need to be.
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Yes, but you said that the his blood rate speed thing increased. Blood Passes past the lungs faster and it has to (i think) collect oxygen and drop of carbon dioxide.

Anyway, when mum told me about this she did say that the scientist guys on the tele could not after doeing reasearch ofcourse, figure out how the tibetan monks did it.

In evaporation, the water from your sweat is diffusing into the air, not boiling off into it (water vapor, not water gas)

Vapors are gas. Evaporation is also where water transitions to a gas phase. Boiling water just speeds this up.

In my case, as I said, it was only to point out that the boiling temperature need not be reached in order to dry the wet sheets.

What you say is true, it could be one of many things that could have dried those sheets.
But, this possibility of almost anything is what hurts the cases of both our sides.
We can work for ages trying to prove and disprove, but with that almost endless ammount of possibilities, we will spend ages more working around that. This is really more of a 'What-do-you-believe' case, one that would be damn near impossible for either side to prove or disprove

His blood speed? To the best of my knowledge, you were the one that brought that up. The only reference that I have made is to a change in rate of heat exchange. That does not necessarily (or even usually) require a faster pulse. The reason your heart beats faster in exercise is because the cells in your muscles need the oxygen, not because they need to generate heat. Heat is just the by-product. Heat can also be created directly through the metabolism of the blood, without the need for extra oxygen to be ferried to the muscles, and therefore without the need for an increased heartrate.



Yes, well, the tele says a great many things. They usually relate directly to the desires of the person paying for the show.
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I can send a heat wave through my body from head to toe at will. It's not all that powerful but when i do it repeatedly when just sitting somewhere inside or outside it does warm me up very effectively.
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Truely  but how does your body exactly generate heat through no friction or possible speed of blood flow . According to mum, they said that what they think caused it, what you stated, should have given their bodies such a great shock that they should die. This is not however the case, they remain perfectly calm.

Water evaporates continously.  If you wet your hands, the water will evaporate off completely within five minutes.  The speed at which evaporation occurs depends on several things, chief among them:  The amount of heat added, the quantity of water, and the surface area of the water.  Let's say that you have a cup of water sitting in a glass.  Since the quantity of water is the same, that is no longer a variable, but in a glass, the only surface area that the water has is the open space on top.  That means that out of all the H2O molecules that are flying around within the water, the only ones that have a chance to fly off into the atmosphere are the ones on the very surface where the water meets the air.  Eventually, all of them will get their turn and fly off, but it will take some time.  The hotter the ambient temperature, the more energy the molecules have, and the faster they will evaporate.  Now, let's take that exact same cup of water, but instead of a glass, let's use it to wash a slab of concrete.  Now the quantity of water is spread out over a large surface and the surface area has increased dramatically.  This means that many, many more water molecules have access to free air, and can jet away from the mass of water.  No more waiting in line.  Heck, it may happen so fast that you don't even get a chance to spread all the water out before it begins evaporating.

This is essentially what is happening when the cloth is dried.  A small amount of water is spread out through the large surface area of the cloth.  Added to that is the heat source that is the human body.  All this comes together to evaporate the water from the cloth, effectively drying it.

Now, of course there are many other variable sin real life, such as humidity, wind factor, etc, but the physics of drying a cloth with a body are very simple, and can be easily understood with a basic course of study.  It is very similar to setting water to boil on a stove and then staring at it and forcing the water to boil with your mind.  No matter what physic abilities you possess, the fact remains that everything that you need to get the water to boil is already present, and if you wish to prove them real you will first have to remove the known cause for the effect.

As far as sweating goes, no, there is no mechanical system that guarantees that this mechanism will occur when this set of conditions has been met.  The body is not a machine that reacts in predictable and reliable ways; the body is a dynamic living system and makes mistakes and changes on a regular basis.  When regulating heat, it only cares about two things:  Is it getting hotter? and Are we getting rid of heat fast enough?  If the internal temperature of the body, despite being overly hot, is not increasing at an alarming rate, then the rate of heat loss is sufficient and the body will not activate another system to supplement it.  The only time it will activate the other system (usually), is if the body is generating heat faster than it is dissipating it.
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