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To: Zeev Hed who wrote (36390)	7/3/1999 1:43:00 AM
From: Zardoz	Respond to of 116759

A very good explaination in my opinion. Thank you. Hutch.

To: Zeev Hed who wrote (36390)	7/3/1999 3:48:00 AM
From: d:oug	Read Replies (1) \| Respond to of 116759

Zeev, good of you to share and you did it very good. Question: If you could go back to young age, imagine the contribution you could have made to advance technology if you became a physic & chemistry teacher and with your good skills to teach. I mean do the math...rather than produce 1 world class scientist of Zeev Hed, Zeev 'held' back and motivated at least 3 or 5 at the highschool level to enter the sciences and produce as Zeev has done. See, you could of indirectly created three times as much by being that special highschool teacher. But I shouldn't complain, one Zeev is better than none. I wonder what those 3 or 5 gifted kids did, probably butcher baker & candle stick maker. Back to the copper thing. In the future when a room temperature ceramic is finally created that electricity can flow thru like copper wire, you mentioned that there will be a weight reduction if it patterns along the same characterists as current high temperature ones. A question along the lines of what weights more, a pound of gold or a pound of feathers, using todays stuff, the ceramic roll of wire will weigh as you said about 1/5 that of copper, but will the volumn or say the diameter of ceramic wire be the same as the copper. I think if you sit on a pound of feathers it might have less volumn than a pound of gold. Need a tank of water to find out, assuming that the feathers and stalks will not absorbe water, and if did then need a liquid like mercury maybe if its molucules are much bigger. << these [high temperature] superconductors need to be cooled to liquid nitrogen temperatures.>> See what a good teacher you are Zeev, you give us interesting information, and included in the "answer" is a question. <<liquid nitrogen temperature>> = ? and then...what was the prior coolent used, and its temperature ....and then scales of F for USA and C for Canada and A for Zeev. yes Zeev gets an A Thanks Doug

To: Zeev Hed who wrote (36390)	7/3/1999 10:31:00 AM
From: long-gone	Read Replies (1) \| Respond to of 116759

thanks for coming over. I was wondering about the use of copper for changing from mechanical to electrical forms of energy and back. as is done in electric motors, generators, and alternators. Can electrical current be induced into(or from) anything other than copper, cheaply enough as to be practical, as done with magnets? Will the copper winding application go away also? and soon? I remember in the 70's & early 80's we tried aluminum as home, industrial, and heavy transmission wiring when copper prices last zoomed. The results were far from great and the loss of life and property so massive that code was rewritten as to exclude their use. Do you think people will again go back to aluminum wiring with ease? thanks