I provided a quote from the same page earlier that suggested that temperature control above 20C by change in metabolism was insignificant. If you can find something on the page that contradicts that, quote it please.
It is not a question of level of proof, it is a question of level of accuracy. And given that it appears that above 20C there is little increase in metabolism, Cecil’s answer is not trivially wrong, it is grossly wrong.
And don’t bother even trying to let Cec off the hook by suggesting he was only giving a rough approximation: he gives his answer to what would appear to be the nearest 10ml for goodness sake.
The graphs on that page don’t line up so well. The text says one thing, the graphs another. The graph 21.8 seems to show metabolism climbing even at 26 degrees. And 20 degrees is room temperature–that’s where I usually drink my dietetic water. So I don’t think you can say that.
I wasn’t talking about Cecil’s answer being a rough approximation–I meant the whole of dietary info is a rough approximation. You take a given number of grams of fat and multiply by a constant and viola you get calorie (big) content. The accuracy is misleading, true, but that’s the nature of the field, it’s not just fiddling around. It gives you a ballpark figure that you can use in planning.
Sorry Princhester…the morning I posted this I was trying to stop a poster running the boards. Yummy-juice/25 was linking porn sites to all the threads.
I notified the mods and webmaster and was running interference and posting behind YJ25 to get the links off the frontpage. I already apologized formally (for any improper posts on my part)and asked the mods to delete any posts I made that morning.
They (the Mods) have already cleaned up the mess made that morning and did a damned good and quick job of it. There’s a couple of threads about this event. (I would link it but the Hamster’s are angry right now.)
Again, I apologize for interfering w/ your debate.
Peace
That is true only if you don’t require that the engine be maintained at a particular temperature (and assumes that fuel efficiency does not change with engine temperature)
Has anyone taken into account that alcohol as a chemical is a depressant? I would have thought as such it would slow the bodies metabolism down. Or at the least inhibit its ability to increase the speed of metabolism…
Although alcohol is a depressant, one of the things it depresses most is self-control. It also causes blood vessels to dilate, causing an increase in heat loss that has to be made up. Therefore, although it is a depressant, it paradoxically has some of the same results as a stimulant.
As do humans, which is why it is not a red herring. I’ve provided cites, I’ve provided calculations (after you continually berated me for not being quantitative). Now put up or shut up, John.
I can’t believe this thread is still active. As to the “waste heat”, let’s assume that there is X amount of waste heat available just from basic metabolism.
To loose weight, you’d have to consume enough cold fluid to represent a heat loss of more than X in order to force the body to begin burning calories.
(Whether this results in shivering or not does not matter. I’ve heard rumors of ‘brown fat’ which burns regular lipids and produces heat, but not shivering. That would result in calorie loss, too.)
The existance of X does not mean that you can’t drive the body into burning calories to make up for heat loss, it just means that there is a certain threshold value of heat loss that has to be surpassed first.
Anyone want to argue that the amount of zero degree water you’d have to drink to surpass the basal heat loss X will also damage you due to dilution of electrolytes?
Yes they sometimes do, John. But not usually. Usually they use by-product heat generated by other activity to maintain heat. I’ve provided cites, if you want to argue, do the same.