May 11 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 11 In Physics History - Births – Physicists born on May 11
Richard P. Feynman (11 May 1918 - 15 Feb 1988)
He was an American theoretical physicist who took every physics course at MIT. He had mastered calculus by the age of 15. He was the most brilliant and influential figure in his field. His interest was in subatomic physics. He was chosen as the group leader in the theoretical division to work on estimating how much uranium would be needed to achieve critical mass for Manhattan Project. He developed a simple notation to describe the complex behavior of subatomic particles. He also worked in the field of quantum electrodynamics and shared a Noble Prize in 1965.
Antony Hewish (Born On 11 May 1924)
He was a British astrophysicist who discovered pulsars that emit extremely regular pulses of radio waves. He earned the Noble Prize for physics in 1974. He observed an unusual signal corresponding to a sharp burst of radio energy at regular intervals. The source was discovered to be rapidly rotating neutron stars with intense electromagnetic fields emitting radio waves. This served as the first evidence of this phenomenon.
Frank Schlesinger (11 May 1871 - 10 Jul 1943)
He was an American astronomer who designed instruments and numerical techniques to improve parallax measurements. He was an expert in the use of photography to map stellar positions. He assembled magnitudes, positions, proper motion, and other necessary data to produce the first edition of the widely used bright star catalogs. It made Yale the leading institute in astrometry. His catalog included some 150,000 stars.
May 11 In Physics History - Deaths – Physicists died on May 11
Maurice Goldhaber (18 Apr 1911 - 11 May 2011)
He was an Austrian American physicist who devised an experiment to show that neutrinos always rotate in the only counterclockwise direction. His method did not involve the use of an accelerator instead he used simple and elegant apparatus. He oversaw experiments at the Brookhaven National Laboratory in New York which led to 3 Nobel Prizes. He also discovered that the nucleus of the deuterium atom consists of a proton and a Neutron.
Karl Schwarzschild (9 Oct 1873 - 11 May 1916)
He was a German theoretical astrophysicist. He developed the use of photography for measuring variables stars. He introduced the perturbation equation which he called the Seidel Ekonal. With the help of this equation, he investigated the geometrical aberrations of optical systems using ray optics. He was the one who introduced that to an exact solution of the Einstein field equation of General Relativity. His work led to modern research on black holes.
Walter Adams (20 Dec 1876 - 11 May 1956)
He was an American astronomer who founded that the relative intensities of stellar spectral lines depend on the absolute luminosities of the star. This provides a spectroscopic method of determining stellar distances. He is best known for his spectroscopic studies of the rotation of the sun, the sunspots, and the velocities of thousands of stars. He identified Sirius B as the first white dwarf star and it confirmed the evidence for the general theory of relativity by the measurement of its gravitational redshift.
John Herschel (7 Mar 1792 - 11 May 1871)
He was an English astronomer and chemist who discovered 525 Nebulae and clusters after his father William Herschel. He was an expert in Celestial photography and he contributed to the development of sanitized photographic paper as a chemist. He was the one who introduced the terms positive image and negative image and studied physical and geometrical optics and interference of light and sound waves. He also invented the astrometer to compare the brightness of stars.
Otto von Guericke (20 Nov 1602 - 11 May 1686)
He was a German physicist who demonstrated that two hemispheres with air pumped out of their interior would be very strongly held together by the force of air pressure. This force was so strong that the teams of horses harnessed to each hemisphere were not able to pull the hemispheres apart. He also studied the role of air in combustion and respiration and showed that like charges repel each other.
