EditorialHalf Model of a Screw Steamer, Polychromed stacking model (starboard) of a three-mast propeller steamship. The model has a deck and a small campaign deck above the screw duct. Sharp stem with curl on the skeg. Elliptical fence with gilded Rijkswapen, s...
EditorialSecondary and main pipe of the water pipe, main pipe of the gas stations, large exhaust duct ..., Sewer in Germany, Signed: K & R, p. 489, 1866, Daheim: ein deutsches Familienblatt mit Illustrationen. Jg. 2. Leipzig: Verlag der Daheim-Expedition, 1866.
EditorialModel of a Lifting Screw, Model of a screw duct in a stern with elliptical stern. The screw light device consists of a loose frame with a two-blade screw, which can be lifted up and down in the tube by a rope that runs over two discs at the top of the ...
EditorialModel of a Fan, Model of a fan operating as a double bellows. Part of the cover can be removed to show the inside. In the body, which has the shape of a circle segment at its point, a plank moves back and forth, hinged at the point. The board is pulled...
EditorialModel of a Fan, Model of a fan operating as a double bellows. Part of the cover can be removed to show the inside. In the body, which has the shape of a circle segment at its point, a plank moves back and forth, hinged at the point. The board is pulled...
EditorialModel of a Fan, Model of a fan, acting as a double bellows. In the large rectangular compartment, a board, which is hinged at half height against the short front, is moved up and down with a lever, the two halves in which the compartment is divided by ...
EditorialModel of a Ventilating Shaft and Portlight, Model of an air and light tube. Model of a part of a ship's wall, on a groundboard. The ship's wall consists of the skin, two wooden parts and the weight, the space between the wooden parts is the air duct, p...
EditorialPhotograph, Thermometers in Exhaust Duct, Coating Dept, Abbotsford, circa 1940s, Black and white photograph featuring a close up of the electric wet and dry bulb thermometers in the exhaust duct for the film coating department in the Kodak Australasia ...
EditorialAnatomy of the human eye, showing musculature, tear duct, etc. Copperplate engraving by Milton from Abraham Rees' Cyclopedia or Universal Dictionary of Arts, Sciences and Literature, Longman, Hurst, Rees, Orme and Brown, London, 1820.
EditorialQumran on the shores of the Dead Sea, Israel. A water duct in the monastic settlement of the Essene Sect developed around 130 BCE during the reign of the Hasmonean King John Hyrcanus.