Everspin makes a type called MRAM (magnetoresistive random access memory), which uses magnetic properties to store data.

BBC: ReRAM competes to be tech's next memory chip standard

The most common type of counterfeiting is called skimming, where the data on a card's magnetic stripe is electronically copied and used to make an illegal copy of a genuine card.

BBC: Two credit cards

While trapping of charged normal atoms can be done with electric or magnetic fields, trapping antihydrogen atoms in this "hands-off" way requires a very particular type of field.

BBC: Antimatter atom trapped for first time, say scientists

The energy released in fusion is carried mostly by neutrons, a type of subatomic particle that has no electric charge and hence cannot be confined by the magnetic bottle.

ECONOMIST: Fusion power: Nuclear ambitions | The

Type-I superconductors are simpler to explain, but of limited use since they cannot coexist with a magnetic field.

ECONOMIST: The Nobel prizes