was a Japanese physicist.

Life

Tokio Takeuchi was born on 26 October 1894 in

Kanazawa is the capital city of Ishikawa Prefecture, Japan. , the city had an estimated population of 466,029 in 203,271 households, and a population density of 990 persons per km2. The total area of the city was . Overview Cityscape File:もてな ...

city. After graduating from the physics department of the Tokyo Imperial University in 1918, he started teaching at the Tokyo Higher Technical School (the origin of

Tokyo Institute of Technology is a national research university located in Greater Tokyo Area, Japan. Tokyo Tech is the largest institution for higher education in Japan dedicated to science and technology, one of first five Designated National University and selected as ...

) in 1919, holding a short career as an engineer at

Mitsubishi Shipbuilding The is a group of autonomous Japanese multinational companies in a variety of industries. Founded by Yatarō Iwasaki in 1870, the Mitsubishi Group historically descended from the Mitsubishi zaibatsu, a unified company which existed from 1870 ...

(the origin of

Mitsubishi Heavy Industries is a Japanese multinational engineering, electrical equipment and electronics corporation headquartered in Tokyo, Japan. MHI is one of the core companies of the Mitsubishi Group and its automobile division is the predecessor of Mitsubishi Mo ...

), and later in 1932 became assistant professor at the

. From 1928 to 1930 he visited Europe for research; in France he studied

quantum mechanics Quantum mechanics is a fundamental theory in physics that provides a description of the physical properties of nature at the scale of atoms and subatomic particles. It is the foundation of all quantum physics including quantum chemistry, ...

under the supervision of Louis de Broglie. On 24 April 1944, he died in Tokyo due to vertebral

osteolysis Osteolysis is an active resorption of bone matrix by osteoclasts and can be interpreted as the reverse of ossification. Although osteoclasts are active during the natural formation of healthy bone the term "osteolysis" specifically refers to a path ...

Work

Physical cosmology

Takeuchi studied general relativistic cosmology in the 1930s, which include the interpretation of the Hubble-Lemaître law as a consequence of the varying-speed-of-light hypothesis, and construction of an eternally oscillating cosmological model that has no initial singularity. These papers had attracted little attention for more than 70 years until being discovered by a Danish historian of science Helge Kragh.

References

{{DEFAULTSORT:Takeuchi, Tokio 1894 births 1944 deaths 20th-century Japanese physicists Academic staff of Tokyo Institute of Technology University of Tokyo alumni People from Ishikawa Prefecture Deaths from arthritis