The rotating part is 450m long and has several inner cylinders.

The inner cylinder had a door-sized opening in it.

Let the inner cylinder be at rest and be of radius.

Their biggest disadvantage was the difficult access to the inner cylinders.

The inner cylinder rotates while the outer one remains stationary.

The inner cylinder is shorter, leaving an empty space at the bottom.

An electromagnet inside the inner cylinder is used to set up an initial field.

Calculating that the inner cylinder would be lowered, he dropped aboard.

The inner cylinder is open at the top to allow the addition of water and the electrolyte.

The inner cylinder is offset 180 from the outer cylinders.