calbiterol

Actually, it would really just be the "relatively simple" technique of applying the Archimedes Principle to the displacement of the water in the closed system (the test tube completely submerged in (salt) water. Find the density of the water (if it isn't distilled) and the mass of the overall system before the reaction and it's relatively simple from there. After the reaction is done, find the change in mass - this is the mass of the displaced water - and calculate the volume from the density of the water. Archimedes in action. So much for simple it's a logistical/practical nightmare. I've tried similar things, although with very, very small quantities of the (unknown) substance being massed. Bloody near impossible to get accurate measures at that small of a scale. If the reaction is producing enough hydrogen, though, it shouldn't be too much of an issue.

Ski power, like I said before, w2-w1 is not going to be its mass, because hydrogen is lighter than air. It is going to be the displacement of the air (or whatever medium you mass it in), unless you mass it in a vaccum, which is impractical. If you are measuring the amount of water being evacuated from a submerged test tube, then you must take the pressure of he water into account if you want a truly accurate value. Ice: the "hydrogen electrode" they are refering to is the electrode where hydrogen is gathering at, in other words, the anode (negative electrode). The bubbles there are bigger due to the fact that water is H2O - two hydrogen atoms to one oxygen atom. Since both hydrogen gas and oxygen gas molecules are diatomic, there will be a theoretical 2:1 ratio of hydrogen to oxygen. If you just want to know the percent of the test tube filled, why don't you just use a graduated cylinder as your test tube? then just read how much is devoid of water. Your measurements will be a little off because of the water pressure, but it should be a persistant error - all measurements should have it. As long as you don't want the actal amount of hydrogen, and are just using the amount for comparison, then you should be fine. Lemme know if you need any clarification on anything I said.

... What? ... Pass that one by me again, I couldn't understand it at all.

I can see where you're coming from. Naiveity (sp?) is one of the things that can really get to me. But I also think that calling it a cover up might be a tad overboard - from my perspective. The way it was written just didn't strike me as a coverup. But, you never know... I'm giving Sayo benefit of the doubt, though - I think he deserves it.

Are there any other ways of making rechargeable batteries? Can I just use the same stuff that they have in commercial ones, if I can get a hold of it? Also, where could I get sulfuric acid soln? And does it have to be a 30% soln? Thanks.

Try not to get tooooooo paranoid. I have that problem sometimes, and it just makes things more difficult. I have to say, that's one of the most amusing (while oddly appropriate) analogies I heard in a long time.

I have a feeling Asian Guy would appreciate it if this thread stayed on topic. I don't mean to be harsh, but we are spending too much time bickering. If both sides compromise, than everyone can be happy and we can stop bickering. This thread is not the place to be waging your personal vendettas against others, this is somewhere to be discussing evolution in regards to declining human intelligence. Here's a possibility. Bear with me until you see the entire thing. Christ Slave, you stop posting more than two or three paragraphs per post, and everyone else stop making degrading comments on Christ Slave's posts/beliefs/etc. This way, Christ slave doesn't feel like he's being unjustly persecuted, and other people don't see as much of a reason to comment negatively on Christ slave's posts. And those people who are upset with the length of your current posts won't have to worry about it. Yes, this will force you to be concise, Christ slave, and yes, it will force everyone else to retain their views of your beliefs, but that is for the best. And I'm not talking about everywhere, just on this thread. By the way, Christ slave, I did read some of your posts - just not the whole thing. That's what I meant before, in the post that disappeared. Sound like a deal?

Yes, it definitely can - which is why I'm always cautious when it comes to things like this.

Would one of these 'lifters' work with a power supply like this? Keep in mind, I'm not talking about a big one, just a basic one.

Aight. I'll take that into consideration next time. I definitely think that the old Webster is better than the Dictionary.com definition, though. Point taken. I just stop reading after the first two sentences. (Fetches 'skittles') I'm sorry, did you miss the memo? It's dark in the womb. Too dark to see. There's no use for sight there anyway.

Not so unnamed any more. Now, I have ticked Sayo off. I've managed to scrounge up my ancient Webster dictionary (it's 19 years older than I am - more than twice my age) and it says: "in evolution, the process by which those individuals (of a species) with characters that help them to become adapted to their specific environment tend to leave more progeny and transmit their characters, while those less able to become adapted tend to leave fewer progeny or die out, so that in the course of generations there is a progressive tendency in the species to a greater degree of adaptation: see also DARWINIAN THEORY." My "new" concise dictionary, which is in many ways less dependable, says thus: "Biol. The process whereby individual variations of advantage in a certain environment tend to become perpetuated by the race." Once again, the 35 - year - old dictionary proves more trustworthy and useful than either a "modern" online dictionary OR a "new" one. [Edit: I was not aware that growth could be hingered, Christ slave.]

Hmmm... I would have to disagree on that last part. I (personally) believe that humans, as a collective, have begun to escape the process of natural selection. We are, in most cases, at the very top of the food chain. Our treatment of diseases and "equal treatment" of all people has defeated the process of natural selection, in my mind. We are too moral for our own good - if someone is dumb onough to walk in front of a train with the gates down, or to walk across a busy highway and get hit by a car, we will not allow natural selection to stay the course, even though at this point it is more artificial than natural. Also, it's not that the genes being passed down help one to survive - its the number of kids that matter in this case. If one family decides to be fiscally responsible and have 1 or 2 or 3 children instead of 15, they will have a better chance of succeding (fiscally) in society. At the same time, there could be a prostitute who has 14 children, all abandoned at a hospital, who all survive. That has nothing to do with survival - the prostitute would actually be more likely to die first. Maybe the genes required for more offspring are, simply, an abnormal frequency of horniness. The dictionary definition of "natural seection" is, by the way, this: The process in nature by which, according to Darwin's theory of evolution, only the organisms best adapted to their environment tend to survive and transmit their genetic characteristics in increasing numbers to succeeding generations while those less adapted tend to be eliminated. Put another way, it's the process by which members of a population most likely to survive are able to produce offspring and pass on their genetic information while those less likely die before they are able to do so. The problem for natural selection with humans is that we won't let them die. The only way to do it would be "artificial selection," in other words, selective breeding. How's this one for kicks - send everybody on Earth that has the "desireable" traits to a different planet - or, if we wanted to please environmental activists, send the ones who aren't "desireable" to another planet. Note that the problem with this is that "desireable" is going to be misinterpreted by society - a "desirable mate" in some societies (as in, the U.S., among others) is considered by many to be someone who is physically attractive. The problem is with society. Too humane, too moral, for our own evolutionary good.

I've found some really nice free hosts, but the usual problem that I find is that they claim that they have "no advertising" and then, a month later, they have huge banner ads that mess up your site's alignment. Really, really annoying.

Huh, I had no idea homestead went paid, much less... GOOD! *Shudders* What has the world come to? Actual decency?!

Ah hah. Enlightenment.

It might be a problem with where you are posting the HTML. If it's just in a normal text box, the host will orbably interpret it as text and/or throw errors. It also might be a problem with your browser - can you view frames in other examples? Another GREAT website is www.htmlgoodies.com. You can teach yourself HTML in less than a week (and have a pretty good working knowledge of it) if you use the primers on that site. Good luck! P.S.: You can find much better free hosts than homestead. Try http://freeprohost.com. It's one of the best that I've found.

Ummm... Ballistics testing, YT? That's a new one. Never heard of jello being used in ballistics testing. Was it the projectile or the target or neither? I have to admit, I'm awfully curious.

sorry, it doesn't work that way - both sides are going to be +/- 2... that's just the way it is...

I took it twice at 45 questions, with different ones the second time. First time: Second time:

ak, that's exactly what I was describing above - assuming I got it right. And from what Xavier said, it doesn't sound like what is on that site would work at all.

Whoah! Slow down. What?

If I'm reading the information on your site correctly, ak, then this is what they mean: One beaker has a diluted acid in it. Oxygen gas is bubbling up through the solution, and there is a platinum electrode in the beaker. This is the cathode. The other beaker has a diluted base in it with bubbling hydrogen. This also has a platinum electrode. This is the anode. The two are connected with a salt bridge, and the voltage is measured on the two platinum electrodes. Like I said, that's if I'm reading it right. [Edit: I kinda doubt that someone who worked in a hydrogen research facility would spill their secrets, but they might give you a simple cell design.]

Swansont: I'd like to say something that I should have said the first time around: I stand corrected. I was aware that too much water and not enough urination can lead to kidney damage, but I was not aware of hyponatremia. Also, I am aware that that wasn't a citation - it was more of a "this is what an MD told me" than anything else. As for the whole urine color thing... Neither of the two sites you gave said that clear urine was unhealthy. I stand corrected on the clear being well-hydrated part as well as on the other point, but I would think that a lot of people might have a hard time making the distinction between light yellow and yellow. It's quite possible that I was told clear for the sheer simplicity of it. Going further into the sites you posted, these sites were of interest: http://www.topendsports.com/nutrition/hydration-fluids.htm http://www.topendsports.com/nutrition/hydration-strategies.htm http://www.topendsports.com/nutrition/hydration-methods.htm and especially http://www.topendsports.com/nutrition/hydration-strategies.htm

Citation? About 6 years of first aid training, including areas concerned with dehydration. Even one of the instructors I had in a CPR class expressed this - and he was a medical doctor. And as far as hyponatremia goes, I somehow doubt that the average high school athlete is going to drink enough water to flush his/her body of electyrolytes. Your own article starts with the question "Can too much water harm marathon runners?" Later, it states that "Whether athletes other than marathoners experience this series of events is unclear" and that the majority of the victims of hyponatremia were taking anti-inflammatory drugs. It also says that "These drugs can block the excretion of water from the body." FYI, many marathons will not allow any runners under 18 to compete. And the longest distance at the high school level is 2 miles (3200 meters). A marathon is more than ten times that. Marathons also frequently have more negative effects on runners than just sodium depletion. Some marathon runners also stock up on carbs and water the day before the marathon, which probably contributes to the problem. And as for a citation for that last bit, I have friends who run marathons. Plus, if he/she is drinking powerade or gatorade, he/she is taking in minerals that replenish electrolytes, or whatever the scientific term for it is.