Alhazen: Difference between revisions
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Claimed and Written by Ananth Somasundaram for PHYS2211 | Claimed and Written by Ananth Somasundaram for PHYS2211 | ||
'''Alhazen''' was an Arab physicist, mathematiician, and astronomer who resided in Basra, Cairo. Alhazen had significant contributions in the fields of optics, astronomy, mathematics, meteorology, visual perception and the scientific method. He is considered to be the first theoretical physicist. Alhazen also was the earliest to discover that a hypothesis has the requirement to be experimented through trailed procedures or mathematical evidence. | '''Alhazen''' was an Arab physicist, mathematiician, and astronomer who resided in Basra, Cairo. Alhazen had significant contributions in the fields of optics, astronomy, mathematics, meteorology, visual perception and the scientific method. He is considered to be the first theoretical physicist. Alhazen also was the earliest to discover that a hypothesis has the requirement to be experimented through trailed procedures or mathematical evidence. Alhazen is considered by many to be the father of modern optics. | ||
[[File:03-ahazen.jpg|100px|thumb|right|Alhazen]] | [[File:03-ahazen.jpg|100px|thumb|right|Alhazen]] | ||
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==Book Of Optics== | ==Book Of Optics== | ||
As mentioned earlier, Alhazen's most significant contribution was the Book of Optics which was created in a span of 10 years with 7 volumes. This book was also translated into Latin at the end of the 12th Centruy. | As mentioned earlier, Alhazen's most significant contribution was the Book of Optics which was created in a span of 10 years with 7 volumes. This book was also translated into Latin at the end of the 12th Centruy. This book influenced great minds such as Leonardo da Vincy and Johann Kepler. | ||
==Theory Of Vision== | ===Theory Of Vision=== | ||
Alhazen performed countless experiments on light and colors, optic illusions, and reflections. He would view the refraction of light rays through transparent mediums such as air and water and would record the laws of refraction. He was noted to be the first person to perform experiments on the dispersion of light into colors. He was noted to be extremely close to discovering the theory of magnifying lenses. This theory was officially created three centuries later. | |||
Alhazen proposed two theories. The first theory of vision was the [https://en.wikipedia.org/wiki/Emission_theory_(vision) Emission Theory] | |||
Revision as of 22:54, 3 December 2015
Claimed and Written by Ananth Somasundaram for PHYS2211
Alhazen was an Arab physicist, mathematiician, and astronomer who resided in Basra, Cairo. Alhazen had significant contributions in the fields of optics, astronomy, mathematics, meteorology, visual perception and the scientific method. He is considered to be the first theoretical physicist. Alhazen also was the earliest to discover that a hypothesis has the requirement to be experimented through trailed procedures or mathematical evidence. Alhazen is considered by many to be the father of modern optics.
Early Life
Alhazen was born in 965 CE in Basra, Buyid Emirate and passed away at the age of 75 in 1040 CE in Cairo, Egypt. He was born to an Arab family and moved to Cairo at an early age. When he moved to Cairo, it was under the rule of Fatimid Caliph al-Hakim. Alhazen pitched a hydraulic project to improve regulation of the flooding of the Nile. After pitching the idea, Alhazen realized the impracticality of his plan. There is no concrete proof, but it has been told that the Caliph was upset at Alhazen for the failed plan and placed him under house arrest till the Caliphs death in 1040. During the house arrest, Alhazen wrote his famous Book Of Optics.
Contributions
Alhazen had significant contributions in the fields of optics, astronomy, mathematics, meteorology, visual perception and the scientific method as mentioned earlier. He made the correlation that the angle of incidence and refraction does not remain constant. He also researched the magnifying power of the lens. Alhazens work significantly impacted other scientists of his time and future. His book of optics debuted many scientific facts which would be used later in the scientific world. Although Alhazen wrote as many as 200 books, as many as 55 have survived.
Book Of Optics
As mentioned earlier, Alhazen's most significant contribution was the Book of Optics which was created in a span of 10 years with 7 volumes. This book was also translated into Latin at the end of the 12th Centruy. This book influenced great minds such as Leonardo da Vincy and Johann Kepler.
Theory Of Vision
Alhazen performed countless experiments on light and colors, optic illusions, and reflections. He would view the refraction of light rays through transparent mediums such as air and water and would record the laws of refraction. He was noted to be the first person to perform experiments on the dispersion of light into colors. He was noted to be extremely close to discovering the theory of magnifying lenses. This theory was officially created three centuries later.
Alhazen proposed two theories. The first theory of vision was the Emission Theory
See also
YouTube Video regarding the beginning of quantum mechanics
Further reading
HyperPhysics: Black-Body Radiation
References
External links
http://www.famousscientists.org/max-planck/
http://www.nobelprize.org/nobel_prizes/physics/laureates/1918/planck-bio.html