Davy experimenting with alkalis
Framed Prints
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Framed Print of Davy experimenting with alkalis
Coloured 19c engraving of Humphry Davy using electrolysis to isolate the metallic element in alkalis and alkaline earths. He is shown experimenting at the Royal Institution in 1807. Davy used a combination of Voltaic batteries to give the highest electrical power he could obtain and ran an electrical current through a solution of potash which caused the isolation of potassium. This was the first metal to be isolated by electrolysis. He discovered that alkalis and alkaline earths are compound substances formed by oxygen combined with metallic bases. Using electrolysis he went on to isolate sodium, strontium, magnesium, calcium and barium. Humphry Davy is on the right. The Voltaic batteries are seen on the table in front of him, to the left is a double-barrelled air pump. Science Photo Library features Science and Medical images including photos and illustrations. © SHEILA TERRY/SCIENCE PHOTO LIBRARY
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Media ID 6297357
1807 Barium Calcium Electrolysis Humphry Davy Magnesium Potash Potassium Royal Institution Sodium Strontium
Modern 14"x12" (36x31cm)
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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 24.4cm x 18cm (9.6" x 7.1")
Estimated Product Size is 36cm x 31cm (14.2" x 12.2")
