Resultado da Busca
Há 1 dia · 1818: Marc Isambard Brunel invents the tunnelling shield. 1820s. 1822: Thomas Blanchard invents the pattern-tracing lathe (actually more like a shaper). The lathe can copy symmetrical shapes and is used for making gun stocks, and later, ax handles. 1822: Nicéphore Niépce invents Heliography, the first photographic process.
