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Approximate number densities (n) and temperatures (T ) of some typical plasmas. The temperature is measured in electronvolts (eV), with 1 eV = 11,605 K. The region above and to the left of the diagonal line represents strongly coupled plasmas (nλD3…

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from article Plasma (physics)

Helicon plasma, which is generated by whistler waves, which then propagate in the plasma. (a) Plasma source. (b) Plasma in a Pyrex chamber mounted inside the magnetic field coils. (Bruce Fritz, University of Wisconsin Engineering Center for Plasma…

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from article Plasma (physics)

Tokamaks. (a) Diagram of tokamak plasma and magnetic field. (b) Interior of the reaction chamber of the Tokamak Fusion Test Reactor (TFTR).

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from article Plasma (physics)

Wafer mounted inside the inductive source used for plasma etching. The surface magnetic field produced by the permanent magnets helps to confine the plasma. (Bruce Fritz, University of Wisconsin Engineering Center for Plasma Aided Physics)

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from article Plasma (physics)

Earth's magnetosphere. The magnetotail extends for a long distance off the figure to the right, away from the Sun.

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from article James Webb Space Telescope (JWST)

Artist's impression of the James Webb Space Telescope. (Credit: NASA)

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from article James Webb Space Telescope (JWST)

Illustration of the James Webb Space Telescope with its four main elements—the Optical Telescope Element (OTE), the Integrated Science Instrument Module (ISIM), the sunshield, and the spacecraft bus—labeled. (Credit: NASA)

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from article James Webb Space Telescope (JWST)

Illustration of the James Webb Space Telescope's travel to its L2 destination with notable deployments labeled. (Note: Illustration not to scale.) (Credit: NASA)

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from article Space navigation and guidance

Jupiter flyby of a space probe in (a) Jupiter's frame of reference and (b) the Sun's frame of reference.

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from article Carpal tunnel syndrome

The carpal tunnel is a thin passageway among ligaments, muscles, and tendons located in the wrist on the anterior (palm) side of the hand. Compression of the median nerve, which courses through the carpal tunnel, can lead to carpal tunnel syndrome.…