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Messages - Bill.D.Katt.
A basic rule is that if there is a solute in a solvent, then the solution freezes at a lower temperature. koolaid and soda are both water with multiple solutes, therefore their freezing temperature is far below that of regular water.
« on: 02/03/2011 01:34:03 »
Wish I knew. Considering the country I live in I can't legally speak from experience, but anything has to be more fun than poison injections.Botox is the toxin botulinum. Probably the most dangerous poison on earth. I think it paralysis the muscles.
« on: 01/03/2011 21:37:30 »
Botox is the toxin botulinum. Probably the most dangerous poison on earth. I think it paralysis the muscles.
Nothing ever stops evolving. We are currently evolving to be the most efficient beings in the (altered) environment that we are in. Humans never evolved from monkeys, we evolved from prehistoric primates. Between each of these primates and us there were many other species. http://en.wikipedia.org/wiki/Human_evolution has a pretty good chart of our ancestors.
I think that hot water contains more solutes if it came from a hot water heater. Also most compounds are more soluble in hot water, so anything from your pipes... But if you are considering the concentration change due to the hot water evaporating faster, I would think that the amount of water evaporated wouldn't incur a significant change. But fluorine is added, so the concentration is pretty regular throughout your water.
As a college student in the U.S. I would say that if degrees are losing their value, it is not science related degrees. Science graduates have been decreasing in numbers relative to the overall rise in the number of college attendees. From personall experience I would say that this is because science and math courses regularly beat the sh*t out of us, and only the ones who really love it stay in. In comparison a good grade is comparatively easily pulled off in art, literature or general studies classes. Several of my friends have dropped their science major because they were tired of getting 40% on tests and having that curved to a 3.5 gpa.
The carbonate equilibrium in sea water actually made up a large portion of my last midterm. We used acid-base equilibrium, the solubility of CaCO3, and various other information to determine the change in pH necessary to force the equilibrium far enough so that CaCO3 shells could no longer form. We assumed that all increase in pH was entirely from CO2 (which is inaccurate because chemical fertilizers also can have an effect). I think CliffordK is right. We used this article: http://www.sciencemag.org/content/305/5682/367.full.pdf
« on: 27/02/2011 17:20:56 »
I should think it does. I think it depends more upon what temperature your body is trying to reach. I think it mostly depends on your internal body temperature. If your internal body temp is low, then you won't feel cold when it's cool outside, I would guess that in this case your body isn't working to hard to maintain temp. By internal body temp I mean the temperature your body is trying to maintain.
« on: 26/02/2011 23:37:33 »
I happen to be very grateful for the bacteria that live in our intestines. Weird as it may seem, without them we would likely be dead.
I always use manure if it's for outside plants, the load of s**t is the best outside fertilizer.
Thanks! I'm currently looking for a fast growth rate for a fairly obscure flowering plant. I have some 10-30-20 on it right now, but I also have some P2O5 that I was considering using. I unfortunately killed one of them after leaving for a while, letting it get too dry, and then re-hydrating it too fast.
I have several potted plants, and was wondering if there was a general rule for the kind of fertilizer that should be used. Is it similar for an entire family or genus? Or is it plant specific? I'm looking for very rapid growth rate.
« on: 15/02/2011 00:26:20 »
I think disease spread, even in the early part of the second millenia, could be extremely fast. Think of how fast a ship traveling from Greece could reach London. That is how fast the disease could spread. Considering that a third of Europe died, I would have to say that it was less densly populated, although that could depend based upon population growth rates. I think during the renaissance the cities became a little more clean as well.
That could be quite possible, but if something is immune, that doesn't mean that it doesn't carry the disease for a short period of time.
« on: 13/02/2011 23:06:18 »
No. It is possible to graft tree to tree, but it is difficult and the "guest" and the "host" most be extremely closely related. I have grafted apple-apple, and have tried plum-plum (no success on that one), but I only have had success if the graft is one year old or less, if it was cut and grafted almost immediately, and if the plants are very closely related.
« on: 12/02/2011 00:02:25 »
It is my strong belief that people equate to more dirt, so more people means more dirt.
Yes, I think it can. This is probably a good example of survival of the fittest, and the passing down of stronger genetics from parent to progeny.
« on: 11/02/2011 05:15:35 »
I would say that it caused such massive devastation the first time around for two main reasons. First, the cities were very dirty and the rat population was huge (and yes, it can spread very rapidly), second, tolerance to the disease was probably extremely low at the time because the disease wasn't properly dispersed throughout the population before hand. There is a specific set of genetics that makes a person immune to the disease, I will have to do more research to remember what it is though. In later outbreaks, more people had the tolerance and therefor survived. I'm pretty sure it was the plague, all records of the time seem to point that way.
« on: 09/02/2011 16:18:21 »
I feel I must warn, if the bottle does explode it can be quite dangerous. There is a "Darwin Award" where and individual is now unable to procreate because he made a plastic bottle bomb. Just be sure you have it far away from you. Unfortunately the NaC2H3O2 is NOT the same kind of NaC2H3O2 that can be used in hot ice experiments, but you can turn it into that.
Tsunamis quite often happen in relation to earthquakes. I think a cyclone is usually in the Southern Hemisphere and a hurricane is in the northern (someone please correct me on this if I'm wrong). Since hurricanes and cyclones are tropical in origin, I doubt that a blizzard could follow, but there could be a very large cold front moving down at the same time, possibilities are almost limitless. If you are considering these storms not striking the same place, then I would say yes, it is very possible; but I'm not a professional.
How would you define "fun?" If things going "bang" are fun, you could pick up a few more ingredients and make TATP (not advisable). Or you could mix the HCl with a little H2O2, drop some copper in, dry out the resulting solution and get CuCl2. This stuff is great at bonfires because you can color the entire fire green by tossing some in .
« on: 05/02/2011 00:03:23 »
Where did you hear that women prefer milk chocolate to dark?
I asked because someone who I regularly go running with is a type one diabetic. As we have increased the distance of the run from 6 miles to 10 miles, he has reduced the amount of nighttime slow release insulin he uses from 20 units to 3 units (regular is 40 units). We were both wondering how this is possible. "Honeymoon" period, which is the time when the islet cells make a small comeback before being destroyed completely, usually lasts for 6-12 months after diagnosis. He is going on 23 months.
Physiology & Medicine / How does the body respond to too much intense exercise over a long time (weeks)?« on: 28/01/2011 00:25:21 »
Before your body starts to consume the vital organs, it will consume almost all fat, and then it will go to work on nonessential muscles. I think you would probably lose consciousness before your body started consuming organs. I started a thread on "bonking," as in "depleting glycogen stores," somewhere on this forum.
I have a friend who is diabetic who informed me that ketosis over longer periods of time can be dangerous. I'm not quite sure how different body chemistry between diabetics and non-diabetics is though. Incidentally I just read an article about the ketogenic diet, not advised for anyone because it seems to increase risk of kidney stones, the patient consumes massive fat and almost no sugars.