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Three beakers, an Erlenmeyer flask, a graduated cylinder and a volumetric flask. Laboratory glassware is a variety of equipment used in scientific work, traditionally made of glass.
A Büchner funnel with a sintered glass disc. A Büchner funnel is a piece of laboratory equipment used in filtration. [1] It is traditionally made of porcelain, but glass and plastic funnels are also available.
Caesium fluoride sample on a watch glass. A watch glass is a circular concave piece of glass used in chemistry as a surface to evaporate a liquid, to hold solids while being weighed, for heating a small amount of substance, and as a cover for a beaker.
A funnel (E) contains a sample of soil or leaf litter (D), and a heat source (F), in this case an electric lamp (G), heats the sample. Animals escaping from the desiccation of the sample descend through a filter (C) into a preservative liquid (A) in a receptacle (B).
Army signal horn, (cornu), Roman period; found in Alphen aan den Rijn, the Netherlands An instrument for creating sound made from the horn of an animal Olifant, possibly southern Italian, 11th century Alphorn player near Zermatt Pair of the Brudevælte Lurs, excavated 1797 Cornicen (horn players) from Trajan's Column