Guest snowcrash Posted May 31, 2003 Posted May 31, 2003 I seem to remember back in grade school that I read an atricle about the early study of fire. The study stated that it was thought fire was an actual element itself and exsisted in everything. What was the name of this element? SnowCrash
KHinfcube22 Posted June 1, 2003 Posted June 1, 2003 Originally posted by snowcrash I seem to remember back in grade school that I read an atricle about the early study of fire. The study stated that it was thought fire was an actual element itself and exsisted in everything. What was the name of this element? SnowCrash Fire! In the early studies fire, water, earth, and wind the four elements which made up everything. Its a frequently known study that almost everyone knows about that was invented by some greek dude, which was later crossed out as impossible by some later scientist who said there was like thirty something elements. Don't remember names.
JaKiri Posted June 1, 2003 Posted June 1, 2003 'Fire' was one of the greek elements (Fire, earth, air, water). It's not the same concept of element that exists in chemistry, which is a chemical with a unique number of protons. Fire is now understood to be an exothermic oxidation reaction (at least conventional fire).
greg1917 Posted June 1, 2003 Posted June 1, 2003 In the 1700's it was believed all substances contained stuff called 'phlogiston'. things that burned quickly, wood etc, rapidly disspiated their quantity of phlogiston. fire was the act of phlogiston rapidly leaving its host substance. rusting was a slower release of the substance. Lavoisier (with the help of an English chemist called Priestly) eventually discovered oxygen.
Guest snowcrash Posted June 1, 2003 Posted June 1, 2003 Thank you Gerg, that is exactly what I was looking for. Snow
Radical Edward Posted June 2, 2003 Posted June 2, 2003 Originally posted by greg1917 Lavoisier (with the help of an English chemist called Priestly) eventually discovered oxygen. and several mice. or was this just the boring experiment where they burnt stuff and watched the volume of gas drop?
JaKiri Posted June 2, 2003 Posted June 2, 2003 Originally posted by Radical Edward and several mice. or was this just the boring experiment where they burnt stuff and watched the volume of gas drop? The one where they burnt the mice?
Radical Edward Posted June 2, 2003 Posted June 2, 2003 Originally posted by MrL_JaKiri The one where they burnt the mice? only by accident. the one I am thinking of is the one where they removed the oxygen, and demonstrated how this is bad for mice. It is probably a different experiment.
greg1917 Posted June 2, 2003 Posted June 2, 2003 Yes, when they heated mercury it burned up a fifth of the air and when mice were exposed to this air they promptly died. when the red mercury oxide was heated at a higher temperature pure oxygen was obtained and it was observed that the mice were hyperactive in this environment. If they burnt mice it was probably due to the absurd amount of opium and hash they smoked in those days.
Radical Edward Posted June 2, 2003 Posted June 2, 2003 Originally posted by greg1917 If they burnt mice it was probably due to the absurd amount of opium and hash they smoked in those days. the mice or the scientists?
JaKiri Posted June 2, 2003 Posted June 2, 2003 Originally posted by Radical Edward the mice or the scientists? Mice were never into the drugs scene, cheese always did the trick.
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