Framed Prints
Framed Print of Gustav Kirchhoff and Robert Bunsen, Inventors of A Spectroscope
In 1860 Robert Bunsen (1811-1899) and Gustav Kirchhoff (1824-1887) discovered two alkali metals, cesium and rubidium, with the aid of the spectroscope they had invented the year before. Bunsen and Kirchhoff met and became friends in 1851, when Bunsen spent a year at the University of Breslau, where Kirchhoff was teaching. In 1855 Robert Bunsen had created the Bunsen burner for use in flame tests of various metals and salts: its non-luminous flame did not interfere with the colored flame given off by the test material. This line of work led to the spectroscope. It was Kirchhoff who suggested that similarly colored flames could possibly be differentiated by looking at their emission spectra through a prism. When he shone bright light through such flames, the dark lines in the absorption spectrum of the light corresponded in wavelengths, with the wavelengths of the bright, sharp lines characteristic of the emission spectra of the same test materials. © New York Public Library / Science Source
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Media ID 47330912
Bunsen Chemist Chemists Emission German Germany Gustav Inventor Inventors Robert Spectroscopy
Modern Frame 14"x12" (36x31cm)
Ready to Hang Contemporary Framed Prints adds style, protection, and a polished touch to your space - effortlessly.
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Wood effect frame, card mounted, 10x8 fade resistant photo print. Overall outside dimensions 14x12 inches (36x31cm). Environmentally and ozone friendly, 40mm wide x 15mm Polycore® moulding has the look of real wood, is durable and light and easy to hang. Biodegradable and made with non-chlorinated gases (no toxic fumes) it is efficient; producing 100 tons of polystyrene can save 300 tons of trees! Prints are glazed with lightweight, shatterproof, optical clarity acrylic (providing the same general protection from the environment as glass). The back is stapled hardboard with a sawtooth hanger attached. Note: measurements provided are estimated outer dimensions, which include both the image and the frame. While we aim to keep sizing consistent, exact dimensions may vary slightly due to differences in print size or production requirements, which may result in a variation in the overall size (up to approximately 2.5cm (1"))
These are individually made so all sizes are approximate
Estimated Image Size (if not cropped) is 13.7cm x 24.4cm (5.4" x 9.6")
Estimated Product Size is 31cm x 36cm (12.2" x 14.2")
