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Most evaporating dishes are made of porcelain or borosilicate glass. [1] Shallow glass evaporating dishes are commonly termed "watch glasses", since they resemble the front window of a pocket watch. [b] Some used for high-temperature work are of refractory metals, usually of platinum, owing to its non-reactive behaviour and low risk of ...
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. When used to cover beakers, the purpose is generally to prevent dust or other particles from entering the beaker; the watch glass does ...
Glass evaporating dishes, such as watch glasses, are primarily used as an evaporating surface (though they may be used to cover a beaker.) The Petri dish is a flat dish filled with a nutritious gelatin that allows for microorganisms to quickly grow, its named after its inventor Julius Petri in the 1880s.
Most recipes will call for a tin for metal and a dish for glass or ceramic, while a pan can refer to either. In a pinch, you can swap one for the other in many recipes.
A Syracuse dish or Syracuse watch glass is a shallow, circular, flat-bottomed dish of thick glass. Usually, it is 67 mm in outer diameter and 52 mm in inner diameter. Usually, it is 67 mm in outer diameter and 52 mm in inner diameter.
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A glass Petri dish with culture. A Petri dish (alternatively known as a Petri plate or cell-culture dish) is a shallow transparent lidded dish that biologists use to hold growth medium in which cells can be cultured, [1] [2] originally, cells of bacteria, fungi and small mosses. [3]
The New York Giants are putting a limited stake in the team on the market, with the process likely to set a record for an NFL franchise valuation, Sports Business Journal reported on Thursday.