科学与环境

Radio waves drive a fusion plasma current that could help reactors run continuously

来源: Phys.org - latest science and technology news stories · 发布于

Radio waves drive a fusion plasma current that could help reactors run continuously
来源: Phys.org - latest science and technology news stories

For the first time, a team of physicists in the U.S. has clearly demonstrated a "helicon current drive" in a nuclear fusion experiment. Led by Jeff Lestz at General Atomics, San Diego, the team took advantage of the latest advances in tokamak technology to show that radio waves s

For the first time, a team of physicists in the U.S. has clearly demonstrated a "helicon current drive" in a nuclear fusion experiment. Led by Jeff Lestz at General Atomics, San Diego, the team took advantage of the latest advances in tokamak technology to show that radio waves steered to travel around the donut-shaped device can be absorbed by its confined plasma, driving an electric current inside it.

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Backward motion is easier to judge at walking speed
科学与环境

Backward motion is easier to judge at walking speed

When we walk forward, the scene ahead spreads outward from a central point. Moving backward produces the opposite pattern, with the scene appearing to contract inward. These patterns, known as optic flow, help us judge our movement through the world. Previous studies have disagre

Phys.org - latest science and technology news stories ·