Gilded

"yes. i believe the speed of light can be theoritically worked out." Bah! All you need is a chocolate bar, a ruler and a microwave oven. ) http://physics.about.com/cs/opticsexperiments/a/290903.htm (thanks to ed84c for originally posting the link) Also, I recall swansont telling the formula for something involving photons, but I think it was for the kinetic energy (= Planck's constant * frequency ?).

"Perpetual motion is not possible. Friction will always exist. Newton's laws will always exist." At macroscopic scale, yes. On microscopic, not necessarily. However, an efficiency over 100% isn't possible at any scale, no matter how hard you want it. "Yeah, but he doesn't seem the brightest of sparks so I let my language slip." Hey, you really shouldn't treat stupid people as idiots. Although when a friend of mine asks why something in physics isn't possible, sometimes I just feel like answering "Because it f***ing isn't!".

I always wanted to make an arc welding device of some sort that I could use to cut funny shapes from metal sheets. Well, too bad I suck at electronics. But that stair-thingie seems quite nice (plasma is always nice ) ).

"So why is it called teflon then? I can really see it being an abrevation for tetrafluoroethylene, although it is quite similar." If you mean why it is called teflon and not for example "TeFlEt", well... guess teflon sounds more hip. )

Nah, I make such abhorring analogies and statements that it's always a pleasure to bring a dash of joy to someone.

"Exactly what it says on the tin. They're mostly here to argue, not discuss." Splitting an atom with a shovel is easier than winning a debate with a fundamentalist. ) My 7th-9th grade history/religion teacher thought somewhat this way too. Also, I'm starting to think there are a lot of bored (not necessary even religious) people in the world that just use forums to debate religion, pretending to be a fundamentalist, just to have something to do. Debating religion and hitting your head against the wall - you can do it all day, and achieve nothing. Except a severe headache.

Got to say, I'd like to hike knee deep in hydrocarbon slush and perhaps a refreshing drink from a methane spring.

"So tetrafluoroethylene is Teflon then ? (silencer)" It sure is. And Silencer said it in an ALMOST sarcastic way.

Hmm. Could be Cl2O7, perhaps, perhaps. It doesn't necessarily blow up when boiled, but perhaps the famous experiment of "first boil it, then smack it with a hammer" isn't the safest way to find out.

"BTW, look at when the original post was created. Udødelig just highjacked a really old thread with no replies." Yeah, greg will be happy (more or less) when and if he sees this. Btw ed, I think KNO3 was a good answer for this guy, but not what Immortal here was looking for, but if we provided him with the info he thinks he needs we'd a) would be violating SFN rules b) would give access to early grave for this moron but c) helping evolution by doing our own share in the gene pool cleaning.

"http://herkules.oulu.fi/isbn951427136X/html/x194.html" Yay for Oulu University. Too bad Finnish scientists always seem to study booooring things like proteins.

Perhaps we shouldn't quite go to the wave-particle function collapsing whatevergizmos. It's scaring Schrodinger's cat!

Whoah, that looks quite cool AND practical! Although, it doesn't deal with ionizing radiation... Hmm. Well, I guess you could do it, it involves photons anyway.

"This even made "big news" in the states. :/" In Finland I think it was merely on text-tv on some channel, but we got so few news anyway. Please, if you're a famous or active in politics, do something incredibly stupid; we need news damn it!

"Actually it is generally accepted that they are both. Hence the QM phrase 'wave-particle duality'" It's fun how in the 8 shaped electron orbitals, the electron can't be at the center point (as it would occupy the same place as the nucleus or something like that?), yet it can pass through because of the w-p duality.

It's always good to have a normal version AND a Zim-version, but I prefer having them in the same post. "and seems this is related to fructose or sth.." The hydroxylysine's hydroxyl group can form a bond with some monosaccharides, at least.

Silencer, I'm quite sure the Danish are secretly trying to build a 400m tall hill, which would therefore annoy everyone, as it would be the new highest place (forcing people to renew several maps and world's mountain statistics!). But I think we were supposed to discuss fluorine, especially the compound greg was talking about, and ignore crazy Danish missile launching people.

"forming hydrofluoric acid and krypton gas or, depending on pressure, K8(H2O)46, a clathrate complex of krypton." Isn't it supposed to be Kr8(H2O)46? And good to see that you have/had good chem teachers. I had a good one at 8th-9th grade, but it seems like I'm going to have a rather strict one in the future (the type that goes "EEEK!" if you try an experiment involving diprotic acids and pine tables).

Missiles + explosives in same post. Suspicions awaken... ) Go and build some hills or whatever you do in Denmark, until you grow up. " If it was pure fluorine gas that they put on the fabric, it would have ignited. lol." You got that right. Pure fluorine is some wacky s*** that ignites even glass if it's having a bad day. )

Well if you're given the formula of the hydrated compound, but not the molar mass of the compound, you could calculate the approximation of the molar mass if you knew the masses of the individual atoms in it.

How much of it you found? And if it's like pyromorphite, does it crystallize the same way after melting like it (I bet it hasn't been tried yet though )?

"oddly enough, we can have BB here and yet my Uncle (about 200 yards away) cannot, because he`s only JUST out of the viability zone, Crazy Huh!" Same thing here, I recall a friend of mine being one street away from the zone. ) "No, we're too lazy to attach a 10m extension cable, even for a payment!"

Dammit, kinder's the only Lovecraft-fan I've seen here and he's gone already, for quite some time too. ) And for Sithlordmike, if you have to do something in the area of physics, do something involving ionizing radiation. There's nothing better than ionizing radiation, and all who say there is are dirty buggers. There are lots of good experiments to do with alpha and other nice particles. A cloud chamber or a even a primitive cyclotron or accelerator might be a bit out there for one person with rather limited funds, but a self-made spinthariscope isn't a bad idea (all you need is a medium-strong alpha-emitter and some activated zinc sulfide you can get from United Nuclear). Making uranium rocks/marbles glow with a UV-lamp is nice too (although perhaps too simple for a science fair). Be creative, radioactivity is like mercury or gasoline; it's dangerous, but boy is it fun to play with some! Just don't build a gigantic man-slaying neutron gun or anything like that.

"and Swedish(Fairly well)" Well, I kind of wondered why an Australian has a Swedish nickname but this sort of clears it up. ) (Husmusen = [the] house mouse). Har du varit till Sverige? (Which doesn't mean "Good day sir, may I buy a pack of marshmallows?", but "Have you been to Sweden?", for those who don't know the language. ) )

I just realized that this is very simple. Bush is putting the Heisenberg uncertainty principle in good use, with a few modifications: The more awful civilian casualties get, the more certain it is that it won't make it to the news.