German archaeologist and scholar who taught himself thirteen languages. He was a highly successful businessman, and used his accumulated wealth to finance an expedition to find ancient Troy. He managed to locate the city, but his unsystematic excavation methods unfortunately destroyed and jumbled the remains of the ancient city. Nevertheless, the developments arising from his [...]
Boucher de Perthes displayed activity in many other directions. For more than thirty years he filled the presidential chair of the Société d’Emulation at Abbeville, to the publications of which he contributed articles on a wide range of subjects. He was the author of several tragedies, two books of fiction, several works of travel, and a number of books on economic and philanthropic questions.
James Dewey Watson (born April 6, 1928) is an American molecular biologist, best known as one of the co-discoverers of the structure of DNA. Watson, Francis Crick, and Maurice Wilkins were awarded the 1962 Nobel Prize in Physiology or Medicine “for their discoveries concerning the molecular structure of nucleic acids and its significance for information [...]
American geneticist who studied the Neurospora red bread mold. By subjecting the mold to X-rays, he caused it to mutate. He then observed that some mold lost the ability to produce a particular organic compound in needed to survive. By adding different but similar compounds and seeing if the mold used it, he could unravel [...]
Theodosius Grygorovych Dobzhansky, also known as T. G. Dobzhansky, and sometimes Anglicized to Theodore Dobzhansky (Ukrainian — Теодосій Григорович Добжанський; January 25, 1900 - December 18, 1975) was a noted geneticist and evolutionary biologist, and a central figure in the field of evolutionary biology for his work in shaping the unifying modern evolutionary synthesis. Dobzhansky [...]
Canadian-American physician who obtained his medical degree from Columbia University in 1904 and joined the Rockefeller Institute in 1913. Avery studied a curious phenomenon that had been observed in pneumococci (pneumonia-causing bacteria) with a smooth coat (S) and those with a rough coat (R). It seemed that the R strain lacked an enzyme [...]
WASHINGTON (AFP) — US authorities have expressed confidence that a US bioweapons expert who committed suicide was the lone culprit behind the 2001 anthrax attacks that terrorized the United States.
Bruce Ivins, 62, killed himself with a prescription drug overdose last week as prosecutors were preparing to charge him in the attacks that left five people [...]
Ahmed ibn Yusuf ibn Ibrahim ibn Tammam al-siddiq Al-Baghdadi also known as Ahmed ibn Yusuf al-misri (835 - 912) was an Arab mathematician, like his father Yusuf ibn Ibrahim (Arabic يوسف بن ابراهيم الصدَيق البغدادي ).
Life
Ahmed ibn Yusuf was born in Baghdad (today in Iraq) and moved with his father to Damascus in 839. He [...]
Ahmed Bin Majid (Arabic:أحمد بن ماجد) (c.1432 - ?), was an Arab navigator and cartographer born in 1421 in Julphar, which is now known as Ras Al Khaimah. This city makes up one of the seven emirates of the United Arab Emirates. He was raised with a family famous for seafaring; at the age of [...]
Ahmad ibn Fadlān ibn al-Abbās ibn Rašīd ibn Hammād (أحمد إبن فضلان إبن ألعباس إبن رشيد إبن حماد) was a 10th century Muslim writer and traveler who wrote an account of his travels as a member of an embassy of the Abbasid Caliph of Baghdad to the king of the Volga Bulgars, the Kitāb ilā [...]
Robotics