In existographies, Lazarus Ercker (c.1530-c.1594) (EP:5), “Erckern” or “Erckers”, was a German metallurgist, noted for []
Overview
In 1574, Ercker, in his Sub-terrarium Classroom (Aula Subterranea) gives an illustration (Ѻ) of metallurgists using aeolipile, of some design, as shown below, to produce a blast of steam in smelting ores: [1]