Summary
Some materials drop electrical resistance to zero at very low temperatures, letting current flow without loss. They also expel magnetic fields, producing the levitation-like Meissner effect.
A magnet floating above an ice-cold disk can look like magic. In reality, it is superconductivity negotiating with magnetism.
In a superconductor, electrical resistance drops to zero and current can circulate without loss. At the same time, the material expels magnetic fields, creating the Meissner effect.
This enables magnetic levitation, ultra sensitive sensors, and more. The challenge is that many superconductors require extremely low temperatures.
Still, the phenomenon is one of modern physics most striking. It lets us rethink energy transport and magnetic control.
How did this info make you feel?
Majority:
( reactions)
