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Name: ellen
Status: N/A
Age: N/A
Location: N/A
Country: N/A
Date: Around 1993


Question:
In your opinion, how do you think cryogenics will advance technologically, and how important will it becomes in our everyday lives?



Replies:
I think cryogenics will have a future in cooling materials to superconduct- ing temperatures. Many material scientists are working on materials that are "high temperature" superconductors but to the best of my knowledge these high temperatures are still quite low (on the order of 100 Kelvin, or -280 Fahrenheit). I think that in the near term, industrial uses for these newer "high temperature" superconductors will still require cryogenics technology. Of course the push from the material science point of view (or from a practical point of view) is to find materials that can be superconducting at room temperature, therefore, you would not have to go to the expense of refrigerating the material to achieve superconductivity. This is but one example, I am sure there are other examples in medicine and medical re- search, but I know little of this area. After reading your question again, I realize that I did not really answer it. Superconducting materials will most likely be used in any electrical machinery that we happen to use (assuming of course that the cost of the materials are competitive). Every utensil that uses an electric motor will be running at nearly perfect efficiencies with superconducting wire. The only significant losses would be in the bearings. This also assumes that we will have the same basic configuration that now exists in electric motors.

david r munoz


Also, there is a satellite now in operation that uses cryogenic cooling. I am not sure what the coolant is, but the satellite parts are cooled down to about 6-12 Kelvin. Pretty cold, eh? I believe it is a NASA satellite aimed at observing different kinds of radiation reaching the Earth from other galaxies/stars, etc. It was in one of the issues of Aviation Week and Space Technology magazine.

wildman jackson


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