Super conductors - basic info

How it was invented...

• James Dewar is the one who initiated the research of testing the properties of conductors at very low temperatures.
• John Ambrose predicted that the super conductors may achieve infinite conductance and zero resistance, but then came the third law of thermodynamics stating no conductor can achieve absolute zero resistance.
• i.e.,even a ideal conductor too has some resistance, but it is negligible.
• Achieving low temperatures were challenging that time.
• After some years linde's machine was successful to achieve liquefying helium and nitrogen.
• when conductors are dipped into the presence of super cooled liquids, they acquire super conducting state.
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These are the basic information of invention of super conductors , in next post we can discuss about the series of experiments conducted on them to find the best super conducting material we've got