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Walter Bradford Cannon (1871–1945) was a physiologist at Harvard University, who is perhaps best known for his classic treatise on homeostasis. [2] Philip Bard (1898–1977) was a doctoral student of Cannon's, and together they developed a model of emotion called the Cannon–Bard Theory.
Walter Cannon began his career in science as a Harvard undergraduate in the year 1892. Henry Pickering Bowditch, who had worked with Claude Bernard, directed the laboratory in physiology at Harvard. Here Cannon began his research: he used the newly discovered x-rays to study the mechanism of swallowing and the motility of the stomach.
Canon introduced this system in 1987 along with the EF lens mount standard. The last non-EOS based SLR camera produced by Canon, the Canon T90 of 1986, is widely regarded as the template for the EOS line of camera bodies, although the T90 employed the older FD lens-mount standard. For a detailed list of EOS Film and digital SLR cameras, see ...
The history of cannon spans several hundred years from the 12th century to modern times. The cannon first appeared in China sometime during the 12th and 13th centuries. It was most likely developed in parallel or as an evolution of an earlier gunpowder weapon called the fire lance.
In 1464 a 16,000 kg (35,000 lb) cannon known as the Great Turkish Bombard was created in the Ottoman Empire. [12] Cannons as field artillery became more important after 1453 when cannons broke down the walls of the Roman Empire's capital, with the introduction of limber, which greatly improved cannon maneuverability and mobility.
The GAU-8 was created as a parallel program with the A-X (or Attack Experimental) competition that produced the A-10. The specification for the cannon was laid out in 1970, [4] with General Electric and Philco-Ford offering competing designs.
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The Dardanelles Gun is a similar super-sized cannon that was built in 1464 by the Turkish military engineer Munir Ali and modelled after the cannon built by Orban.. The Basilic, [1] or The Ottoman Cannon was a very large-calibre cannon designed by Orban, a cannon engineer, Saruca Usta and architect Muslihiddin Usta at a time when cannons were still new.