Diamagnetism
Concept
A property of most materials where they are repelled by a strong magnetic field. Water is a prime example.
Mentioned in 2 videos
Videos Mentioning Diamagnetism

World's Strongest Magnet!
Veritasium
A property of most materials where they are repelled by a strong magnetic field. Water is a prime example.

Doctor Asks Physics Questions (ft @MedlifeCrisis)
Sabine Hossenfelder
A type of magnetism involving repulsion from magnetic fields, exemplified by the levitating frog.