Caesius

That actually helps a lot. Thanks!

I am taking Calculus III for one of my classes and Im learning about solving for Tangent Vectors and Normal Vectors for a curve. I figured out a way to determine the g-force exerted on a "particle" at a particular point on the curve by using vector calculus. So, just for laughs, I wanted to find out what g-forces a particle would experiance on the curve f(x) = x2. However, in order to solve it, I need the parametric equations for f(x) = x2. Im trying to make the parametric equations work so f(x) is like a rollercoster. However, everytime I try and solve for the parametric equations, I get gravity working "upside down" and my "particle" slows down as it approaches the origin (the bottom of my "rollercoster", whereas it should be speeding up.) Can anyone help? Thanks!

Take some vinegar and put it into an empty two-liter soda bottle. Next, take some purple cabbage leaves and boil them in a little bit of water (the deeper the color the better) Mix the purple cabage water with the vinegar (note the interesting change), then throw in some baking soda. (Note another interesting change) Hope this helps!

If you could find a more active metal than cerium (if I could make a guess, aluminum or magnesium), you might be able to come up with a thermite-like reaction reducing the cerium. CeOx(s) + Al(s) => Ce(l) + Al2O3 (unbalanced) OR CeOx(s) + Mg(s) => Ce(l) + MgO (unbalanced) My best guess is that magnesium is more likely to work because it is a slightly stronger reducer than aluminum. You will have to do some research and see whether or not magnesium and aluminum are stronger reducers than cerium, I couldn't find out right away. If they are, then I believe this may work a little like a thermite reaction.

The one other acid I can think of that might even remotely be close to the movies isn't even considered a very strong acid. "Hydrogen Fluoride, HF, is quite soluble in water, but it ionizes only slightly, i.e., it is a weak acid. Although HF is a weak acid, it is very corrosive and is used to etch glass." (Whitten and Gailey, General Chemistry) My chemistry professor always used to say that when it comes to Hydrofluoric acid, the general rule is that you will see your bone before you will feel the pain.

This site pretty much sums everything up according to my religion. http://www.slate.com/articles/life/explainer/2012/01/what_do_mormons_like_mitt_romney_believe_about_heaven_and_hell_.html

oh, it's in the middle of the Medical Science section. Duh.

No, we cannot "prove" that atoms exist. But we have some pretty good evidence through indirect means.

I am doing a psychology test on global warming for school. I just need people's honest answers.

I have a dilemma. I have been homeschooled for most of my life, so I don't really know anybody my own age group. Now I am starting to take a single, early morning class with my age group. Now my question is; I would like to get to know some of the people in my class more. But since they do not know me that well, they kind of avoid me subconsciously. So how can I get to know people better without appearing awkward or intrusive?

Why is there no forum for phsychology? Phsychology technically is a science.

What was the purpose of it? Is/can it still be on the earth today? What could it do?

I know what my religon thinks of the Priesthood mentioned in the Bible. I am wondering what those of other religon's think of it. What are your believes when it comes to the Priesthood?

Thanks everyone for the information. It was very helpful.

I am not quite sure, there isn't that much of the oxidizer in the chlorine bleach just like store bought hydrogen peroxide. I don't think there is enough of the oxidizer in bleach to get aluminum oxide to react. But like I said before, you would have a pretty good chance of making some chlorine gas if you did get it going.