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Hace 2 días · Rudolf Virchow establí que els canvis anòmals en la morfologia (estructura) de les cèl·lules eren la base de les patologies corporals, ajudat pels experiments fets per Robert Remak (1815-1865), descobridor de la mitosi.
Hace 23 horas · However, Robert Remak and Rudolf Virchow were able to reify the third tenet, and by the 1860s most biologists accepted all three tenets which consolidated into cell theory. Meanwhile, taxonomy and classification became the focus of natural historians.
Robert Remak discovered ways to fix and observe cell membranes in various stages of cell division. These findings led Rudolf Virchow to proclaim in 1855, Omnis cellula e cellula (every cell comes from another cell), thus completing the tenets of cell theory.
Hace 4 días · Oberth’s Wege zur Raumschiffahrt (1929; Ways to Spaceflight) won the first annual Robert Esnault-Pelterie–André Hirsch Prize of 10,000 francs, enabling him to finance his research on liquid-propellant rocket motors.
Hace 3 días · Paul Bogart (director); Robert Hoban, Ed Harvey (screenplay); Dean Martin, Eugene Roche, Thalmus Rasulala, Denise Nicholas, Cindy Williams, Geraldine Brooks, Philip Michael Thomas, George Tyne: 31 And Then There Were None: Variety Distribution / Corona Filmproduktion / Talía Films / COMECI
Hace 4 días · Robert C. Richardson (born June 26, 1937, Washington, D.C., U.S.—died February 19, 2013, Ithaca, New York) was an American physicist who was the corecipient, along with Douglas Osheroff and David Lee, of the 1996 Nobel Prize for Physics for their discovery of superfluidity in the isotope helium-3 (3 He).
Hace 2 días · Roger Joseph Ebert ( / ˈiːbərt / EE-burt; June 18, 1942 – April 4, 2013) was an American film critic, film historian, journalist, essayist, screenwriter, and author. He was a film critic for the Chicago Sun-Times from 1967 until his death in 2013.
