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May 25 In Physics History

Physics history will help you to develop a better understanding of the physics world!

birthdays & deaths

Explore all birthdays & deaths of physicists occurred on this day with their short biography!

physics Events

Know all important discoveries made by physicists & events happened on this day with complete information!

May 25 In Physics History - Births – Physicists born on May 25

Pieter Zeeman (25 May 1865 - 9 Oct 1943)

He was a Dutch physicist who discovered the Zeeman Effect the “phenomena produced in spectroscopy by the splitting up of spectral lines in a magnetic field.” For this discovery, he shared the Nobel Prize in 1902.

Carl Wagner (25 May 1901 - 10 Dec 1977)

He was a German physical chemist and metallurgist who was the first to make chemical metallurgy an exact science. He focused on the wide-ranging field, such as oxidation rate theory, catalysis, corrosion, batteries, fuel cells, and crystal defects. He wrote the paper with Walter Schottky that helped in bringing order to the field of defect structures in solid-state materials. Wagner was also known as “the father of Solid-state Chemistry” and also remembered as one of the greatest in physical chemistry.

Jack Steinberger (25 May 1921 - 12 December 2020)

He was a German-born American physicist who shared the Nobel Prize for his joint discoveries of the neutrino beam method with Leon M. Lederman and Melvin Schwartz. He also demonstrated the double structure of the leptons through the discovery of the muon neutrino. After their discovery, the neutrino beams went on to become one of the standard tools of particle physics.

May 25 In Physics History - Deaths – Physicists died on May 25

Frank Dyson (8 Jan 1868 - 25 May 1939)

He was a British astronomer who spent his almost entire career at the Royal Greenwich Observatory as an Astronomer Royal from 1910-33. He initiated the radio broadcast of time and directed measurements of terrestrial magnetism, latitude, and time. He photographed the entire sky and examined the proper motions of northern stars. He directed the 1919 eclipse expedition which confirmed the bending of starlight by the gravitational field of the Sun.

May 25 In Physics History - Events – Physics Events of May 25

Announcement of First Moon Landing Goal

On this day, President John F. Kennedy made the formal announcement of an American lunar landing in 1961. After eight years and one month, Neil Armstrong became the first man to walk on the moon.

April 12 in Physics History

Physics history will help you to develop a better understanding of the physics world!

birthdays & deaths

Explore all birthdays & deaths of physicists occurred on this day with their short biography!

physics Events

Know all important discoveries made by physicists & events happened on this day with complete information!

April 12 in Physics History - Births – Physicists born on April 12

Edward Walter Maunder (12 Apr 1851 - 21 Mar 1928)

He was an English astronomer who first started the British Civil Services Commission examination for the post of photographic and spectroscopic assistant at the Royal Observatory, Greenwich. He worked at the observatory for the next forty years measuring the sunspots and checking historic records. He found a lack of reports on sunspots from 1645 to 1715. Instead of questioning this, he started researching and found that there are indeed decades-long times when the sun has very few sunspots. Now we call these periods as Maunder minima.

Ferdinand von Lindemann (12 Apr 1852 - 6 Mar 1939)

He was a German mathematician who proved that π is not a solution to any algebraic equation with a rational coefficient. This explained the insoluble natural or classical Greek mathematical problem of constructing a square with the same area as a given circle using a ruler and compasses alone. He discussed Hermite’s methods that he used to prove that ‘e’ is transcendental. He extended Hermite’s results in 1882 to show that π was also transcendental.

April 12 in Physics History - Deaths – Physicists died on April 12

Charles Messier (26 Jun 1730 - 12 Apr 1817)

He was a French astronomer who first compiled a systematic catalog of “M objects” and discovered 15 comets. His catalog contained nebulae, 103-star clusters, and galaxies. He concluded the alphanumeric names for objects like M1, M2, etc.

Geoffrey F. Chew (5 Jun 1924 - 12 Apr 2019)

He was an American physicist who led the group of S-matrix theorists researching the strong interaction and the bootstrap principle. He was a graduate student of Enrico Fermi. His group calculated the interactions of bound-states without assuming that there is a point-particle field theory underneath.

Igor Tamm (8 Jul 1895 - 12 Apr 1971)

He was a Soviet physicist who shared the Noble Prize with Pavel A  Cherenkov, and Ilya M. Frank for physics for his works in explaining Cherenkov radiation. He developed the theoretical interpretation of the Cherenkov effect which states that the radiation of electrons moves faster than the speed of light through matter. He also developed a method for studying the interaction of nuclear particles and contributed towards the methods for the control of thermonuclear reactions.

April 12 in Physics History - Events – Physics Events of April 12

First Man To Orbit The Earth

On this day, Yuri Gagarin became the first man to orbit the Earth in 1961. The control of the spacecraft was locked to prevent him from taking control of the ship. It had a radio, television, and life-supporting equipment. He ejected and made a planned descent landing with his parachute but the Soviet Union denied this to save its reputation. After 7 years, he died in a plane crash.

The First Yo-Yo Toy In Space

The first yo-yo toy was taken into space in the Space Shuttle Discovery mission 51-D in 1985. With this yellow plastic Duncan Imperial yo-yo, other toys were exhibited during a time in orbit. Astronauts did the tricks with toys but the yo-yo sleeper trick couldn’t work without normal gravity. While spinning, the gyroscope showed exceptional stability. The flywheel slowed without normal gravity.

Space Shuttle Columbia Was Launched

Columbia, the American Space Shuttle was launched into space in 1981. John W. Young was the mission commander.