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  2. Hydrogen spectral series - Wikipedia

    en.wikipedia.org/wiki/Hydrogen_spectral_series

    The four visible hydrogen emission spectrum lines in the Balmer series. H-alpha is the red line at the right. The Balmer series includes the lines due to transitions from an outer orbit n > 2 to the orbit n' = 2. Named after Johann Balmer, who discovered the Balmer formula, an empirical equation to predict

  3. 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.

  4. Balmer series - Wikipedia

    en.wikipedia.org/wiki/Balmer_series

    The "visible" hydrogen emission spectrum lines in the Balmer series. H-alpha is the red line at the right. Four lines (counting from the right) are formally in the visible range. Lines five and six can be seen with the naked eye, but are considered to be ultraviolet as they have wavelengths less than 400 nm.

  5. 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 ...

  6. 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.

  7. Jennifer Aniston Explains Why Her Nipples Were So Prevalent ...

    www.aol.com/jennifer-aniston-explains-why-her...

    Jennifer Aniston's Friends character Rachel Green was all over the #freethenipple campaign long before freeing the nipple was even a thing. Of course, we love her for it. But fans have been ...

  8. New test may detect Alzheimer's years before tau clumps show ...

    www.aol.com/test-may-detect-alzheimers-years...

    However, by the time these proteins have become visible in brain scans, disease progression is well underway, meaning that medications are less effective. A new study, ...

  9. 10 Expert Tips to Find the Right Therapist in 2025 - AOL

    www.aol.com/10-expert-tips-therapist-2025...

    “With that said, even if you see a therapist from a different background, it doesn’t mean they won’t be effective in helping you.” Schedule a consultation (and another, and another)