Spectroscopy

5 lives in this collection worked in spectroscopy, from 1787 to today. Each has a full course on their life and the mathematics and physics they made.

Often together with: chemistry, optics. All fields

  • Joseph von Fraunhofer1787–1826

    Bavarian optician who mapped the dark lines of the solar spectrum, introduced the diffraction grating for measuring wavelengths, and made the finest achromatic telescopes of his time.

    optics, spectroscopy, optical glass and instrument making

  • Julius Plücker1801–1868

    Geometer who introduced line coordinates, the Plücker formulas and line geometry, and physicist who first observed the magnetic deflection of the cathode glow and studied gas spectra.

    analytic geometry, algebraic curves, line geometry

  • Robert Bunsen1811–1899

    Experimental chemist who founded spectral analysis with Kirchhoff, discovered caesium and rubidium, and made gas analysis, photochemistry and calorimetry quantitative.

    chemistry, analytical chemistry, spectroscopy

  • Gustav Kirchhoff1824–1887

    Mathematical physicist who formulated the circuit laws, founded spectral analysis with Bunsen, and stated the law of thermal radiation that defined the black-body problem.

    mathematical physics, electrical circuits, spectroscopy

  • William Crookes1832–1919

    London chemist and physicist who discovered thallium, invented the radiometer, the Crookes tube and the spinthariscope, and also investigated spirit mediums.

    chemistry, spectroscopy, vacuum physics