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Creator Central Scientific Company Remove constraint Creator: Central Scientific Company

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    • Part of Catalog K: Physical Apparatus for Universities and Colleges
    • 1912-May

    Instrument that measures the wavelengths of light through a chemical sample. Can be used to determine elements in a sample when different elements emit different wavelengths of light. Illustrated instrument made by…

    • Part of Catalog K: Physical Apparatus for Universities and Colleges
    • 1912-May

    Spectroscopes use a lens or prism to disperse light into wavelengths. The spectroscopes shown can be handheld (top image) or attached to a camera (bottom image) to record the observation.

    • Part of Catalog K: Physical Apparatus for Universities and Colleges
    • 1912-May

    Instruments designed for photometric analysis. Photometers can be used to measure the presence and concentration of organic and inorganic compounds in solution by determining the absorbance of specific wavelengths of…

    • Part of Catalog K: Physical Apparatus for Universities and Colleges
    • 1912-May

    Wave apparatuses for the study of transverse and longitudinal waves.

    • Part of Catalog K: Physical Apparatus for Universities and Colleges
    • 1912-May

    Instruments for measuring both voltage and amperes of direct electric current.

    • Part of Catalog K: Physical Apparatus for Universities and Colleges
    • 1912-May

    "Parsons' latest improved design, for controlling incandescent lighting circuits, and for demonstrating the laws of series and parallel combinations."

    • Part of Catalog K: Physical Apparatus for Universities and Colleges
    • 1912-May

    From page 97: "These cells show the extraordinary property which selenium possesses of changing its electrical resistance under the influence of light."

    • Part of Catalog K: Physical Apparatus for Universities and Colleges
    • 1912-May

    Apparatus for showing the principles of an induction or alternating current motor; demonstrating the rotating magnetic field.

    • Part of Catalog K: Physical Apparatus for Universities and Colleges
    • 1912-May

    Apparatus for showing Tesla's experiments with electricity.

    • Part of Catalog K: Physical Apparatus for Universities and Colleges
    • 1912-May

    Various vacuum tubes for cathode ray demonstrations, including Crookes' Tubes, Holtz' Tube, and Lenard's Tube.

    • Part of Catalog K: Physical Apparatus for Universities and Colleges
    • 1912-May

    Various Geissler tubes for demonstration purposes. Invented by the glassblower, Johann Heinrich Wilhelm Geissler (1815-1878), a light is produced when an electric current is passed through the rarefied gas filled tubes.

    • Part of Catalog K: Physical Apparatus for Universities and Colleges
    • 1912-May

    No. 2213 is a Dynamo Analysis Apparatus, an electrical generator.

    • Part of Catalog K: Physical Apparatus for Universities and Colleges
    • 1912-May

    Static electricity generator used for experiments and powering X-ray machines.

    • Part of Catalog K: Physical Apparatus for Universities and Colleges
    • 1912-May

    Quadrant electrometer and electrometer for radioactive measurements.

    • Part of Catalog K: Physical Apparatus for Universities and Colleges
    • 1912-May

    "This apparatus was designed to supply our own laboratory with an electro-magnet of sufficient strength and field concentration for magnetizing, experimentation, etc. With its accessories listed below it becomes…

    • Part of Catalog K: Physical Apparatus for Universities and Colleges
    • 1912-May

    Steam and gas engines.

    • Part of Catalog K: Physical Apparatus for Universities and Colleges
    • 1912-May

    No. 1639. Parabolic Reflectors, used to collect sound, light or radio waves.
    No. 1641. Melloni's Apparatus, for demonstrating the phenomena of absorption, polarization, reflection and refraction of radiant heat.

    • Part of Catalog K: Physical Apparatus for Universities and Colleges
    • 1912-May

    Illustration of possible combinations of laboratory equipment on the "Universal Physical Laboratory Supports."

    • Part of Catalog K: Physical Apparatus for Universities and Colleges
    • 1912-May
    • Part of Catalog K: Physical Apparatus for Universities and Colleges
    • 1912-May

    "The Geryk" mechanical air pump for high vacua. English pump (Fleuss' patents).