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Italian physicist and electrical engineer Galileo Ferraris publishes a paper on the induction motor, and Serbian-American engineer Nikola Tesla gets a US patent on the same device [4] [5] 1890: Thomas Alva Edison invents the fuse: 1893: During the Fourth International Conference of Electricians in Chicago, electrical units were defined 1893
1947 – Invention of the First Transistor at Bell Telephone Laboratories, Inc. 1947 – Invention of Holography; 1948 – Birth of the Barcode; 1948 – The Discovery of the Principle of Self-Complementarity in Antennas and the Mushiake Relationship; 1948 – First Atomic Clock; 1948–1951 – Manchester University "Baby" Computer and its ...
1954: Invention of the solar battery by Bell Telephone scientists, Calvin Souther Fuller, Daryl Chapin and Gerald Pearson capturing the Sun's power. First practical means of collecting energy from the Sun and turning it into a current of electricity. 1955: The hovercraft is patented by Christopher Cockerell.
Joseph John O'Connell (1861–1959), U.S. – number of inventions relating to telephony and electrical engineering; Theophil Wilgodt Odhner (1845–1903), Sweden/Russia – the Odhner Arithmometer, a mechanical calculator; Paul Offit (born 1951), U.S., along with Fred Clark and Stanley Plotkin, invented a pentavalent Rotavirus vaccine
The invention of the collapsible periscope for use in submarine warfare is credited to Simon Lake in 1902, who called his device the omniscope or skalomniscope. Later, it was made to be raised and turned by hand. [89] 1902 Mercury arc valve. A mercury arc valve is a type of electrical rectifier which converts alternating current into direct ...
Some of the devices which would enable wireless telegraphy were invented before 1900. These include the spark-gap transmitter and the coherer with early demonstrations and published findings by David Edward Hughes (1880) [9] and Heinrich Rudolf Hertz (1887 to 1890) [10] and further additions to the field by Édouard Branly, Nikola Tesla, Oliver Lodge, Jagadish Chandra Bose, and Ferdinand Braun.
1924: Edwin Hubble: the discovery that the Milky Way is just one of many galaxies; 1925: Erwin Schrödinger: Schrödinger equation (Quantum mechanics) 1925: Cecilia Payne-Gaposchkin: Discovery of the composition of the Sun and that hydrogen is the most abundant element in the Universe; 1927: Werner Heisenberg: Uncertainty principle (Quantum ...
It was the first convenient battery for the masses and made portable electrical devices practical, and led directly to the invention of the flashlight. The zinc–carbon battery (as it came to be known) is still manufactured today. In parallel, in 1887 Wilhelm Hellesen developed his own dry cell design. It has been claimed that Hellesen's ...