Electrotyping (also galvanoplasty) is a chemical method for forming metal parts that exactly reproduce a model. The method was invented by Moritz von Jacobi in Russia in 1838, and was immediately adopted for applications in printing and several other fields. As described in an 1890 treatise, electrotyping produces “an exact facsimile of any object having an irregular surface, whether it be an engraved steel- or copper-plate, a wood-cut, or a form of set-up type, to be used for printing; or a medal, medallion, statue, bust, or even a natural object, for art purposes.
invented by William Otis
A steam shovel is a large steam-powered excavating machine designed for lifting…
invented by
An internal combustion engine (ICE or IC engine) is a heat engine in which the…
invented by Ascanio Sobrero
Nitroglycerin (NG), also known as trinitroglycerin (TNG), nitro, glyceryl…
invented by Robert Bunsen
Chemical vapor deposition (CVD) is a vacuum deposition method used to produce…
Suggest an invention you think it should be here
Inventions that changed the world
Leave a Reply