Final Answers
© 2000-2019 Gérard P. Michon, Ph.D.

Permanent Magnets

Molecular Dipole Moments in Hyperphysics by Rod Nave.
Physics News in 2001 (APS). The most spherical thing (atoms lack EDM).

Video: How it's made: Magnets

Magnetism 1 | 2 (1st minute without audio)
Science on Stage
Electromagnetism (A Hila Science Video)
Demonstrating Magnetism by J. Clinton Sprott (Wonders of Physics).
How Superconducting Levitation Works
May 1963 World Record (10.1 T) : Coil #214, from General Electric.
The Strongest DC magnet in the World (45 T hybrid magnet) : MagLab (Tallahassee, FL).

(2017-04-15) Magnetism The relativistic origin of magnetism.

Velocity and Time (28:46) David L. Goodstein (#43, 1986)
Magnets : How Do They Work? (6:25) by Henry Reich (Minute Physics, 2013-09-23).
How Special Relativity Makes Magnets Work (4:18) by Derek Muller (Veritassium, 2013-09-23).

(2019-08-13) Magnetometry How do you measure a magnet?

How do you measure a magnet? (15:31) by James Clewett (James Hennessy, 2019-08-13).

(2015-09-14) Making a Magnet Without electric current and without another magnet.

John Canton (1718-1772)

John Michell (1724-1793) black holes (letter to Cavendish, dated 26 May 1783).

John Canton (1718-1772) and artificial magnets (1750)

Magnets and Black Holes (Objectivity #35). Brady Haran and Keith Moore, filmed by James Hennessy.

(2008-05-17) Halbach Arrays The magnetic flux vanishes on one side and is reinforced on the other.

Fundamentals of Halbach Array (11:33) by George Mizzell (SuperMagnetMan, 2018-09-06).

Wikipedia : Halbach Array