Peter Childs, University of Limerick, investigates words in chemistry.
There are many kinds of flask used in chemistry - some going back to the days of alchemy - but unlike beakers many of these flasks have their own names. So when you ask for a flask you really need to specify what sort you want. Flasks and flagons were containers in everyday use, often with a narrow neck, and used for transporting and dispensing liquids. A common shape used in classical times was that of the amphora, which was used in many sizes for all kinds of liquids and whose lineal descendant is the pear-shaped flask used in distillation. Amphorae don't stand up well by themselves, due to their pointed bottom. However, they pack together quite well and ancient shipwrecks have been found stuffed with amphorae, some with their contents intact. Originally these were made of clay-based ceramic, but the Romans also made amphorae out of glass...
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