NAKARAJAN

LOUIS JACQUES MANDE DAGUERRE  THE WORLD FIRST PHOTOGRAPHER  BORN  1787 NOVEMBER 18 On January 7, 1839, members of the French Académie des Sciences were shown products of an invention that would forever change the nature of visual representation: photography. The astonishingly precise pictures they saw were the work of Louis-Jacques-Mandé Daguerre (1787–1851), a Romantic painter and printmaker most famous until then as the proprietor of the Diorama, a popular Parisian spectacle featuring theatrical painting and lighting effects. Each daguerreotype (as Daguerre dubbed his invention) was a one-of-a-kind image on a highly polished, silver-plated sheet of copper.  daguerreotype  a photograph taken by an early photographic process employing an iodine-sensitized silvered plate and mercury vapour. Daguerre’s invention did not spring to life fully grown, although in 1839 it may have seemed that way. In fact, Daguerre had been searching since the mid...

AMERICA CONSTITUTION SIGNED ON  1787 SEPTEMBER 17  The United States Constitution is the supreme law of the United States of America.[1] The Constitution, originally comprising seven articles, delineates the national frame of government. Its first three articles entrench the doctrine of the separation of powers, whereby the federal government is divided into three branches: the legislative, consisting of the bicameral Congress; the executive, consisting of the President; and the judicial, consisting of the Supreme Court and other federal courts. Articles Four, Five and Six entrench concepts of federalism, describing the rights and responsibilities of state governments and of the states in relationship to the federal government. Article Seven establishes the procedure subsequently used by the thirteen States to ratify it. Since the Constitution came into force in 1789, it has been amended twenty-seven times[2] to meet the changing needs of a nation now profound...