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1923 in science |
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The year 1923 in science and technology involved some significant events, listed below.
Hafnium is a chemical element; it has symbol Hf and atomic number 72. A lustrous, silvery gray, tetravalent transition metal, hafnium chemically resembles zirconium and is found in many zirconium minerals. Its existence was predicted by Dmitri Mendeleev in 1869, though it was not identified until 1922, by Dirk Coster and George de Hevesy, making it one of the last two stable elements to be discovered. Hafnium is named after Hafnia, the Latin name for Copenhagen, where it was discovered.
Niels Henrik David Bohr was a Danish physicist who made foundational contributions to understanding atomic structure and quantum theory, for which he received the Nobel Prize in Physics in 1922. Bohr was also a philosopher and a promoter of scientific research.
The year 1867 in science and technology involved many significant events, listed below.
The year 1934 in science and technology involved some significant events, listed below.
The year 1912 in science and technology involved some significant events, listed below.
The year 1916 involved a number of significant events in science and technology, some of which are listed below.
The year 1917 in science and technology involved some significant events, listed below.
The year 1920 in science and technology involved some significant events, listed below.
The year 1922 in science and technology involved some significant events, listed below.
George Charles de Hevesy was a Hungarian radiochemist and Nobel Prize in Chemistry laureate, recognized in 1943 for his key role in the development of radioactive tracers to study chemical processes such as in the metabolism of animals. He also co-discovered the element hafnium.
The Weizmann Institute of Science is a public research university in Rehovot, Israel, established in 1934, 14 years before the State of Israel. It differs from other Israeli universities in that it offers postgraduate-only degrees in the natural and exact sciences.
Group 4 is the second group of transition metals in the periodic table. It contains the four elements titanium (Ti), zirconium (Zr), hafnium (Hf), and rutherfordium (Rf). The group is also called the titanium group or titanium family after its lightest member.
The year 1868 in science and technology involved some significant events, listed below.
The year 1939 in science and technology involved some significant events, listed below.
Dirk Coster was a Dutch physicist. He was a professor of Physics and Meteorology at the University of Groningen.
The Asahi Prize, established in 1929, is an award presented by the Japanese newspaper Asahi Shimbun and Asahi Shimbun Foundation to honor individuals and groups that have made outstanding accomplishments in the fields of arts and academics and have greatly contributed to the development and progress of Japanese culture and society at large.
Hilde Levi was a German-Danish physicist. She was a pioneer of the use of radioactive isotopes in biology and medicine, notably the techniques of radiocarbon dating and autoradiography. In later life she became a scientific historian, and published a biography of George de Hevesy.