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German-Dutch spectacle-maker Hans Lippershey invented the first refracting telescope1. -
William Oughtred english mathematician and Anglican minister invented the earliest form of the slide rule, two identical linear or circular logarithmic scales held together and adjusted by hand. -
Jean-Baptiste Denys invents a method for blood transfusion1. -
Giovanni Branca invented a steam turbine1.
1629: English astronomer and mathematician W. Gascoigne invented the micrometer1. -
Cornelis Jacobszoon Drebbel was a Dutch engineer and inventor. He was the builder of the first operational submarine in 1620 and an innovator who contributed to the development of measurement and control systems, optics, and chemistry. -
W. Gascoigne invents the micrometer1. -
invents the adding machine1 -
Evangelista Torricelli invents the barometer1. -
Otto von Guericke invents an air pump1.
1656: Dutch mathematician and scientist Christian Huygens invented a pendulum clock1. -
Christian Huygens invents a pendulum clock1.