Earlier this week, the company successfully tested the Central Solenoid Model Coil (CSMC), a crucial component of its SPARC tokamak reactor design that could one day help produce carbon-free energy.

The solenoid seen above uses a body milled from HDPE and wrapped with magnet wire. The slug in the center is steel, with a few rare-earth magnets at the top. When you run current through the coil ...

“It basically makes components for either circuit boards or some of the different solenoids that are out there. So, a copper coil that is used for either inductance, resistance or sometimes to ...

A coil of wire, or solenoid, consists of a wire coiled up into a spiral shape. When an electric current flows, the shape of the magnetic field is very similar to the field of a bar magnet.

A coil of wire, or solenoid, consists of a wire coiled up into a spiral shape. When an electric current flows, the shape of the magnetic field is very similar to the field of a bar magnet.