Bologna Bottle

What happened

A Bologna bottle , also known as a Bologna phial or philosophical vial , [ 1 ] is a glass bottle which has great external strength, often used in physics demonstrations and magic tricks . The exterior is generally strong enough that one could pound a nail into a block of wood using the bottle as a hammer ; however, even a small scratch on the interior would cause it to crumble. [ 2 ]

Summary assembled by rule from the sources below

Sources