The Facts About Alfred Russel Wallace

The Facts About Alfred Russel Wallace

British naturalist

 

Birth	January 8, 1823
Death	November 7, 1913
Place of Birth	Usk, Wales
Known for	Developing the theory of evolution contemporaneously with British naturalist Charles Darwin
Career	1848 Traveled to South America and began collecting insect specimens
	1854 Continued collecting and observing animal species in southeast Asia, and developed the concept of natural selection
	1858 Sent a paper containing his theory of evolution to Charles Darwin, who arranged, through Charles Lyell, for it to be jointly read before the Linnaean Society with his own
	1869 Published The Malay Archipelago, which fleshed out his theory of evolution
	1870 Published Contributions to the Theory of Natural Selection
	1876 Published The Geographic Distribution of Animals, observations of species distribution gathered during years of travel
Did You Know	While returning from four years spent collecting specimens in the Amazon, Wallace’s boat caught fire and sank, along with all his collected specimens.
	Wallace was active in the movement against the smallpox vaccination.
	During his 8 years in the Malay Archipelago, he collected over 125,000 species of mammals, insects, shells, reptiles, and birds.
	Although Wallace believed in evolution, he still held that human intelligence has a supernatural origin.
	Wallace left school at the age of 14.
	Wallace noted a marked difference between the plants and animals of southeast Asia and those of Australia, and was the first to postulate that their physical separation prevented competition between species.

 

Alessandro Volta

Alessandro Volta (1745-1827) was an Italian physicist, known for his pioneering work in electricity. Volta was born in Como and educated in the public schools there. In 1774 he became professor of physics at the Royal School in Como, and in the following year he devised the electrophorus, an instrument that produced charges of static electricity. In 1776-77 he applied himself to chemistry, studying atmospheric electricity and devising experiments such as the ignition of gases by an electric spark in a closed vessel. In 1779 he became professor of physics at the University of Pavia, a chair he occupied for 25 years. By 1800 he had developed the so-called voltaic pile, a forerunner of the electric battery, which produced a steady stream of electricity. In honor of his work in the field of electricity, Napoleon made him a count in 1801. The electrical unit known as the volt was named in his honor.

The facts about Albert Einstein

Albert Einstein was a German-born American physicist and the facts about Albert Einstein as explained below shows some of the most distinct details about his personality.

 

Birth	March 14, 1879
Death	April 18, 1955
Place of Birth	Ulm, Germany
Known for	Proposing the theory of relativity, a physical theory of gravity, space, and time
	Explaining the photoelectric effect and Brownian motion
Career	1905 Published papers on special relativity, Brownian motion, and the photoelectric effect
	1909-1911 Taught physics at the University of Zürich
	1911-1912 Taught physics at the German-speaking university in Prague
	1912-1914 Returned to teach at the University of Zürich
	1914 Became a professor at the University of Berlin and director of the Kaiser Wilhelm Institute for Physics
	1916 Published a paper on general relativity, extending his earlier theory of special relativity
	1919 A solar eclipse confirmed Einstein’s prediction that starlight bends in the vicinity of a massive body such as the sun.
	1921 Won the Nobel Prize in physics for his work on the photoelectric effect
	1933 Began teaching at Princeton University
	1939 Pointed out, in a letter to President Roosevelt, the possibility that an extremely powerful bomb might be constructed using atomic chain reactions in uranium, and suggested that the Germans might be working on such a bomb
Did You Know	Einstein could not find a job in physics upon graduating from college, and became a technical assistant in the Swiss Patent Office. He worked on theoretical physics in his spare time.
	Einstein did not receive a Nobel Prize for his theory of relativity.
	Einstein immediately left Germany for the United States following Hitler’s rise to power.
	Einstein spent much of his later career searching for a unified field theory, but was unsuccessful.
	Einstein declined the presidency of the state of Israel when it was offered to him in 1952 by state leaders.
	The element einsteinium, discovered in 1952, was named in honor of Albert Einstein.

In essence Allbert Einstein was indeed an icon of science whose works are still very useful today and the facts about Albert Einstein reveals his birth, career and death.