sábado, 2 de octubre de 2010
1835
· Solymon Merrick patents the wrench.
· Englishmen, Francis Pettit Smith invents the propeller.
· Charles Babbage invents a mechanical calculator.
· Englishmen, Francis Pettit Smith invents the propeller.
· Charles Babbage invents a mechanical calculator.
1804
Richard Trevithick, an English mining engineer, developed the first steam-powered locomotive. Unfortunately, the machine was too heavy and broke the very rails it was traveling on.
Suscribirse a:
Entradas (Atom)