Sunday, April 1, 2012

Scientists born on April 1st

 Alain Connes:

Thumbnail - Alain Connes
baby icon  Born 1 Apr 1947.
French mathematician won the 1982 Fields Medal (awarded in 1983) for his work in operator theory. His most remarkable contributions are (1) general classification and a structure theorem for factors of type III, obtained in his thesis (1973); (2) classification of automorphisms of the hyperfinite factor, which served as a preparation for the next contribution; (3) classification of injective factors; and (4) application of the theory of C*-algebras to foliations and differential geometry in general. Connes' recent work has been on noncommutative geometry and he has studied applications to theoretical physics.

  Norman Abramson :
baby icon  Born 1 Apr 1932.
American computer scientist who created ALOHANET, the first modern data network, which formed the basis of the protocols essential in the Ethernet now in wide use. It opened in 1970, operating at 9600 bits per second, using radio to provide a wireless packet-switched data network between several Hawaii islands. Its innovations included the first packet radio sensors, the first packet radio repeaters, the first satellite packet network and the first radio access to the Internet. Abramson's U.S. patents include the first patent for CRC redundancy checks to provide data error control technique (No. 3,114,130), and the first patent issued for the design of burst errors in digital systems (No. 3,163,848)
baby icon  Born 1 Apr 1578; died 3 Jun 1657 .  
English physician who discovered the true nature of the circulation of the blood and of the function of the heart as a pump. Functional knowledge of the heart and the circulation had remained almost at a standstill ever since the time of the Greco-Roman physician Galen, 1,400 years earlier. Harvey's courage, penetrating intelligence, and precise methods were to set the pattern for research in biology and other sciences for succeeding generations, so that he shares with William Gilbert, investigator of the magnet, the credit for initiating accurate experimental research throughout the world.
book icon On the Motion of the Heart and Blood in Animals, by William Harvey, Robert Willis 

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