You can try the first discovery and the 3D controls now. Stella unlocks every stage.
Tokamak: The Magnetic Sun
Explore how a tokamak holds a small sun of plasma inside a donut-shaped magnetic cage.
Bringing the Sun down to Earth
Fusion is the reaction where light atomic nuclei join and release energy. At the centre of the Sun it happens continuously because the star’s own gravity presses the fuel together. On Earth there is no such gravity. What we built instead is this doughnut-shaped machine. Start from the outside: the thick vacuum vessel, the column running through its centre (the central solenoid), and the large coils wrapped around it. There is no fire here and no chimney. There is only the structure needed to hold a ring of ionised fuel in a magnetic field.
Circle the outer vessel, the central solenoid, and the surrounding coils.
A fusion reactor has no combustion chamber. It has a cage for touching nothing.
Quietly check just the outer vessel, the central solenoid, and the surrounding coils.
Highlight the vacuum vessel, central solenoid, coils, divertor, and blanket.
The basic heating that warms the plasma with its own current. It makes the start-up stage easy to read.
Check the exterior: Quietly check just the outer vessel, the central solenoid, and the surrounding coils.
You can try the first discovery and the 3D controls now. Stella unlocks every stage.