In fusion power research, the Z-pinch, also known as zeta pinch, is a type of plasma confinement system that uses an electrical current in the plasma to generate a magnetic field that compresses it (see pinch).
Z-pinch - Wikipedia
en.wikipedia.org/wiki/Z-pinch
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I read about someone who planned to circumnavigate Antarctica by ship, log the mileage and time, and post daily reports. Can't find that article right now. It's a much, much longer trip than geography teachers, maps, and "globes" suggest…