A brief view into what superconductors are; how they work; the story and research behind them; and what our superconducting future could look like.
What is a Superconductor? : Read more
What is a Superconductor? : Read more
The scheduled forum maintenance has now been completed. If you spot any issues, please report them here in this thread. Thank you!
4.2 kelvin is not 4.2 C. 4.2 kelvin = -268.95 C.Onnes was studying the electrical properties of mercury (the same substance that expands and contracts within thermometers) when he found that mercury’s electrical resistance disappeared at temperatures below 4.2 Kelvin (4.2 degrees Celsius).