Hawaii is the largest island in the United States with 4,021 square miles [10,414 square kilometers] , but is not the largest island in the world. 11 people found this useful. Edit. Share to: 1  A Brief History of the Newspaper Industry A newspaper is defined simply as a regular publication with a wide variety of news.
Discovery of Zirconium. Precious stones containing zirconium, such as hyacinth and zircon, have been used as decorations since ancient times. Zirconium was first recognized as an element by Martin Heinrich Klaproth in 1789, in Berlin, in a sample of zircon (zirconium silicate) from Sri Lanka. His analysis of the mineralâs composition showed: 25% silica; 0.5% iron oxide; 70% new oxide. He called the new oxide âZirconerde.â (2)
Then suddenly, late in 1938, Otto Hahn (pictured at right with Lisa Meitner) and Fritz Strassmann (pictured at left) discovered a fundamentally new and unexpected exception. After irradiating uranium with neutrons, they were surprised to detect barium, an element only about half of the mass of uranium.The conclusion was inescapable; they had split the uranium atom into two parts. They had discovered nuclear fission -- the splitting of the atom.Two physical properties of nuclear fission are particularly exciting and important; splitting the uranium nucleus with a neutron releases energy and a few additional neutrons.hen suddenly, late in 1938, Otto Hahn (pictured at right with Lisa Meitner) and Fritz Strassmann (pictured at left) discovered a fundamentally new and unexpected exception. After irradiating uranium with neutrons, they were surprised to detect barium, an element only about half of the mass of uranium.