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Superconductor Basics

When we push electrons through most conductors, there is resistance from other electrical fields that slows down the transmission of the electrical current and creates heat. In some materials, the electrons clump together in pairs (Cooper pairs) and move with reduced resistance. These materials are called superconductors and they are most effective at low temperatures […]

1786 – Arago – bio

Francoise Arago was born in 1786 in France and was an astronomer, physicist and mathematician. Some of his work complemented similar work by Faraday and Fresnel. His confirmation of a bright spot of light at the center of a circular shadow helped confirm Fresnel’s wave theory of light and is now known as “Arago’s spot”. […]