H2SO4

ive always thought the air from car vents was *realy cold compared to normal house AC.

I wish one could get a nice, cheap, geiger counter. Ive always wanted oen. Do those pick up stray cosmic rays?

I dont think they use radium for anything anymore. Did you know salt substitue is radioactive! Its that one K isotope.

Akcapr, im sure there is alittle bit of bata radiation being emitted also. I think he is talking about the gold being "turned" into another element by the radiation, like how if you nail some bismuth with alpha particles you get astatine (i believe). And bio-hazard, how would putting gold in an area of nuclear radiation affect its value (that is, unless it was turned into another element). ? Its not liek it will stay radioactive after exposure.

Woolworths?

i know

You ant do electryoysis of CaCO becuase its Mp is to high. Get or make CaCl2 then electroylize that. Or just do what budelgrwag said. But nontheless, your gonna need high temp equipment But ya, if i were you id just forget about "making" pure Ca.

Whens longhorn scheduled for release? Im thinking about buying it for my dell dimension 4600.

I dont get it.

So what happens to the atom that emits a beta particle. Does it then give up a proton to balance it out?

the first link has lots of pyro stuff (i.e. lampblack, "book of pyro" lol.)

Ya, i completely understand the laser thing, and the wavelengths. Is that true that when photons hit a wall there exciting the electrons in the wall, so they produce light? I always thought they were being reflected (because we were always told that a black object reflects litttle light and obsorbs thge energy, where as a green object absorbs all wavelengths of light except green). Oks, so when a photon is being "shot" out of an electron, its just automaticaly the speed of light? Now, from what i understand form what you have told me, it travels so fast because it's just energy. do other forms of radiation move this fast (gamma, x-ray, betta, ect)?

I already saw the thread about wether electrons are energy or matter, and lets not turn this into the same argument. But ya, i know the laser thing is more complicated than that, but i was just throwing it out there.

Ive always been interested in light, but never realy understood it. Now i think its time i should understand it. Here are my questions about light. First of all, is a photon just like a part of an electron or something? Second, why is it that they travel so incredibly fast? and why (according to einstein) can nothing exceed the speed of light. What makes them so special. Im thinking there (maybe, energy) emitted from electrons as they fall back into their correct energy levels. Im thinking this because a LASER bumps a lasable (i.e. ruby) materials electrons out of order, then as they fall back, laser light is created. And also, can photons collidide with other particles (you know, not like a wall, but like other forms of radiation or other photons). I was wondering all this because i got a green laser pointer and have been absolutely obsesed with it and all these questions started coming to mind. If you can help, thanks.

Well, i always think of it as a source to find out what other people think of the same subject, while still learning from it.

Id have to go with cable. Cable companies seem to have better costumer service versus phone companies. Take for example comcast.

Whay do you mean drop some reactive metals in there? in the aquarium?

Well there would be more "sulfatei ion" around to make a bisulfate, why when theres not enough there is only the "sulfate". Youd think it would be mixed though.

I usualy dont heat it in a flask, but a metal container, but theres no difference. I usualy melt it but dont go to much over its melting pointer. Keep it to a minumum i believe would be best.

Why dont you just go to the store and buy calcium carbonate from where the tincture of idoine is. Im pretty sure its an over-the-counter item.

ya, but you probaly need a good blowtorch.

they dont have atalyst's as far as i know. All i know is that some of them are windproof, which is just a minature bunsen burner. But ya, this thread is all over this forum. Ill contribute anyway..... Copper from pipes and good purity Cu from electrical wiring. gold from circuit boards.

You can probaly get NaI as a household product at an aquarium store or something.

dude that bubble thing with the CO2 seems awesome!