NeonBlack

You can tell how many (complex) roots a polynomial has simply by looking at the degree of the polynomial.

I did a quick msn search. This data: http://www.alcheminc.com/drawdata.HTM seems to suggest that a spring is accurate.

you do not need to know the weight or velocity of the arrow. The definition of work is [math] \int F dx [/math] the force of a spring: [math] F=kx [/math] so, [math] work= \Delta KE = \frac{1}{2} kx^2 [/math] or, if you subsitute, [math] KE = \frac{1}{2} Fx [/math] where x is the draw length and F is the force of the bow at the draw length.

Yeah, it will work for a recurve, longbow, or crossbow. (A ballista too, I guess.) A compound bow is slightly more complicated, but this should still give a resonably good approximation, I'm guessing.

I think it's also illegal to have a paintball gun that looks like a real gun.

For once I agree with you. It seems like each year, there has to be a new "epidemic" made up by the media. With bird flu this year, vaccination shortage last year, mad cow 2 years ago and SARS the year before that. It is complete bull. I think even the year before SARS we had West Nile. Every year, it turns out to be nothing but media hype. Sadly, I doubt the majority of people will ever catch on.

Very simply, the energy of the bow will be one half of the draw weight times the draw length. So if you have a 60 inch (5 foot!) draw length and 35-55 maximum draw weight, you will have about 88 to 138 ft-lbs. I doubt the draw length of your bow is 5 feet, unless it's a ballista, so you have to use the actual length that you draw the sting back (parallel to the shaft of the arrow) If you're interested in the maths, I can post that too if you'd like.

Acoustica mp3 audio mixer. You can open and save to just about any audio format. It's good for splitting a song or trimming an intro or end of a song, whatever. Get it from download.com

Certainly. #include <stdio.h> int main (void) { int x = 13; do { if (x % 2 == 1 && x % 3 == 1 && x % 4 == 1 && x % 5 == 1 && x % 6 == 1 && x % 7 == 1 && x % 8 == 1 && x % 9 == 1 && x % 10 == 1 && x % 11 == 1) { printf ("%d", x); return 0; } x += 13; } while (1); } It does the job.

Why aren't supercritical fluids considered to be a seperate phase of matter?

83161

A game I think you'll like: http://www.conquerorgame.com/ It's a turn based strategy a lot like risk but with a few new dimensions. In addition to placing troops, you also have farms, castles, taxes, culture and diplomats. It's more confusing at first, but if you play a few games and read the rules, you get the hang of it pretty fast.

I don't think this is even remotely possible. Rather than some levitation device, you'd just be making a gigantic magnetic compass.

Diffraction

yeah phenolphthalein is a laxative. I'm not sure which brands contain it though.

The energy (heat) is the mass times the heat capacity times the absolute temperature. In other words, h=CmT How you're going to "extract" this energy is up to you I guess.

The R can be pretty much anything.

I got these using the midpoint rule for approximations. FTo'C is the Fundamental Theorem o' Calculus. edit: the values I gave you were computed using n=10 000. I just tried it with n= 100 million k=2 and came up with 3.141461, it took my computer like 4 full minutes to compute. So we are getting closer to pi.

Assuming k is an integer > 0, here are some midpoint approximations: k=1; 2.0 k=2; 3.129495 k=3; k=4; 3.380247 k=5; k=6; 3.292757 k=7; k=8; 3.145137 k=9; So it looks like it's undefined for odd k > 1. Who knows how accurate these are. Maybe someone will give the FTo'C a shot. I'm not even sure if that's possible though. EDIT: as not to confuse anyone, I meant to say that the function itself is defined for odd k, but it has no area on [-1,1]

A-ha! So it must be like the invisible vampire-in-a-mirror / hand of god-in-a-scan type deal. wait... Why are vampires invisible in mirrors but ghosts are only visible in photographs? THAT doesn't make any sense.

I don't know if you realize this, but that's essentially the same as saying that standards should conform to your browser. Whoever thought that herme should respond to the heroin bit, that is an absolutely ridiculous argument. 'Everyone does heroin' is certainly not the same as 'Everyone uses IE' The 'everyone' who uses heroin is not the vast majority of the population. Everyone has a different number but I would guess that anywhere from 80-90% of computer users browse with IE for general purposes. Which leads me to my next point, the difference in the browser statistics from the several different sites. Obviously, if you look at the demographics from http://www.hellokitty.com and from http://www.omgpr0n.com you can't make a statement about internet users in general. Likewise, if you look at which browsers people are using to access certain sites, http://www.msn.com and http://www.linux.org are going to be very different. That's to be expected. There are a lot of analogies for the standards situation. Here's mine: We have this thing called 'Standard English.' Way back during the Middle English speaking peroid, perhaps 1200-1300 various regions came up with their own local spellings for words. As you might imagine, this could be confusing when people from different regions tried to communicate in writing. So sometime I'm guessing around 1500 or shortly after a few people got together and decided to standardize spelling and grammar of the English language. The same thing happened with browers. I remember when Netscape was still in competition with IE. IE had scrolling text, Netscape had blinking text, IE had inline frames, Netscape didn't and so on. Eventually someone decided that all webpages should work the same in every browser. So, the next time someone uses a non-standard english word or breaks some obscure grammar rule should we jump all over them and say that they are 'blatantly ignoring the standards just to piss everyone off because they have their own agenda to take over the world?' Some standards are important, how does a table work, how do basic sentence structures work, some others are not. Everyone breaks some English rules sometimes because it's really not that big of a deal. I'd even say that the vast majority of people break rules and nobody cares. I want to say that I finally decided to give Firefox a try. I've been using both IE and Opera for the past few months and I have to say that I was somewhat disapointed with Opera. FF isn't too bad, but already I've found that certain pages just don't look as good as they do when viewed with IE. Sometimes there are some spacing and alignment problems and a lot of times table and frame borders can look pretty bad. Interestlingly, my.msn.com does not display at all in FF. I don't know if the MS people don't want you to use FF or if the FF people don't want you looking at a MS page. Also, it was kind of a pain in the a to change the default Google search (I don't like Google) to the msn search. I was pleased that it is easy to make new pages open in an entirely new window (I don't like tabs). Okay, it's getting kind of late and I think that's all I have to say about that other than I think these 'Browser Battles' really ought to stop. Most of them are nothing more than O WELL THAST BCUZ IE IS FULL OF SACURITY HOLES Well, I think that's about all for now. Kind regards.

Is it just me or does anyone else fail to see the signature on the picture?

*Closes eyes and spins the wheel of college majors...* Well, it looks like it's landed on... native american studies. Your destiny has been chosen! Umm... Chemical Engineering and uh, Material Science are probably going to end up being basically the same thing. If you definately want bio-med, mechanical engineering is probably just going to be a hassle. I'd go for bio-physics or biology or chemistry or pre-med as your second major.

YT, even if the oxygen is in a liquid or solid phase there is still a certain vapor pressure of O2. Even if we ignore this, we still have a very low pressure if the oxygen is cool enough to be in a non-gasseous state. At this extreme low temp and pressure I doubt any rusting reaction would be able to take place spontaneously.