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Dahlgren guns were muzzle-loading naval gun designed by a United States Navy Rear Admiral John A. Dahlgren (November 13, 1809 – July 12, 1870), mostly used in the American Civil War. Dahlgren's design philosophy evolved from an accidental explosion in 1849 of a 32 lb (14.5 kg) gun being tested for accuracy, killing a gunner.
After his father's death, he would write and present many technical papers on military weaponry, including the Dahlgren gun. Ulric Dahlgren (1842–1864) was a soldier in the Union Army and was killed in an unsuccessful mission to liberate Federal prisoners in Libby Prison and Belle Isle.
Philosophy of psychology also closely monitors contemporary work conducted in cognitive neuroscience, cognitive psychology, and artificial intelligence, for example questioning whether psychological phenomena can be explained using the methods of neuroscience, evolutionary theory, and computational modeling, respectively.
John Stuart Mill was accused by Edmund Husserl of being an advocate of a type of logical psychologism, although this may not have been the case. [6] So were many nineteenth-century German philosophers such as Christoph von Sigwart, Benno Erdmann, Theodor Lipps, Gerardus Heymans, Wilhelm Jerusalem, and Theodor Elsenhans, [7] as well as a number of psychologists, past and present (e.g., Wilhelm ...
Dahlgren gun, type of smooth bore cannon designed by the Admiral and used by the U.S. Navy; Dahlgren Affair, failed mission to assassinate leaders of the Confederacy; Dahlgren system and dahlgrenogram, created by Swedish-Danish botanist Rolf M. T. Dahlgren (1932–1987) USS Dahlgren (TB-9), Torpedo Boat No. 9/TB-9/Coast Torpedo Boat No. 4
The Dahlgren gun was the standard weapon of the United States Navy. These smoothbore guns were also referred to as "shellguns" as they were designed to fire massive exploding shells. These smoothbore guns were also referred to as "shellguns" as they were designed to fire massive exploding shells.
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Morgan's Canon – Law of parsimony in comparative (animal) psychology Morton's fork – False dilemma in which contradictory observations lead to the same conclusion Russell's teapot – Analogy formulated by Bertrand Russell to illustrate that the burden of proof lies upon a person making empirically unfalsifiable claims