ELI5: Explain Like I'm 5

Magnetic refrigeration

Magnetic refrigeration is a type of cooling technology that uses magnets instead of chemicals or electricity like other methods of cooling. In this method, different materials are placed in a magnetic field and the materials react by getting hotter or colder. When the materials get hotter, they release energy, and when they get colder, they absorb energy. This energy is used to cool or heat things in your fridge.