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  2. Friedrich Paschen - Wikipedia

    en.wikipedia.org/wiki/Friedrich_Paschen

    Louis Carl Heinrich Friedrich Paschen (22 January 1865 – 25 February 1947) was a German physicist, known for his work on electrical discharges. He is also known for the Paschen series , a series of hydrogen spectral lines in the infrared region that he first observed in 1908.

  3. Hydrogen spectral series - Wikipedia

    en.wikipedia.org/wiki/Hydrogen_spectral_series

    For example, the 2 → 1 line is called "Lyman-alpha" (Ly-α), while the 7 → 3 line is called "Paschen-delta" (Pa-δ). Energy level diagram of electrons in hydrogen atom. There are emission lines from hydrogen that fall outside of these series, such as the 21 cm line.

  4. List of fuel cell manufacturers - Wikipedia

    en.wikipedia.org/.../List_of_fuel_cell_manufacturers

    GenCell Alkaline FC -5 kW Hydrogen backup and Ammonia based primary power Horizon: ECOBOC-MR, Aerostack, Hydromax [12] Intelligent Energy: FCM-800 Loop Energy [13] PEM Fuel Cells Mitsubishi Heavy Industries: Solid oxide fuel cell [14] Plug Power Inc. GenDrive, GenSure, ProGen [15] Robert Bosch GmbH [16] PEMFC and SOFC [5] Toshiba: Ene-Farm, [17 ...

  5. Hydrogen Fuel-Cell Vehicles: Everything You Need to Know - AOL

    www.aol.com/hydrogen-fuel-cell-vehicles...

    That's the hydrogen fuel-cell vehicle, related to an EV but with specific differences that make hydrogen cars different and much rarer. To date, about 2.5 million EVs have been sold in the U.S.

  6. Hydrogen fuel cell cars are here. But good luck trying to ...

    www.aol.com/news/hydrogen-fuel-cell-cars-good...

    You've probably heard of fuel cell cars. They use hydrogen gas to make electricity to power a motor that drives the car. The waste product: water vapor. The technology is clean, ...

  7. Paschen's law - Wikipedia

    en.wikipedia.org/wiki/Paschen's_law

    Paschen's law is an equation that gives the breakdown voltage, that is, the voltage necessary to start a discharge or electric arc, between two electrodes in a gas as a function of pressure and gap length. [2] [3] It is named after Friedrich Paschen who discovered it empirically in 1889. [4]

  8. Paschen - Wikipedia

    en.wikipedia.org/wiki/Paschen

    Paschen-Back effect, the splitting of atomic energy levels in the presence of a strong magnetic field Paschen series, a Hydrogen spectral series in the infrared band Paschen's law , an equation that gives the breakdown voltage, that is the voltage necessary to start a discharge or electric arc, between two electrodes in a gas as a function of ...

  9. Scientists Are Using Chicken Feathers to Build Better ...

    www.aol.com/lifestyle/scientists-using-chicken...

    Hydrogen fuel cells are vying for a top spot among humanity’s green energy solutions, but chemicals found in fuel cells— as well as the environmental cost of producing hydrogen—are a major ...

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