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Mahmoud Hessaby (in Persian محمود حسابی - alternative spellings: Mahmood Hesabi)(February 23, 1903, TehranmarkerSeptember 3, 1992, Genevamarker) was a prominent Iranianmarker scientist, researcher and distinguished professor of University of Tehran.

Hessaby was born in Tehranmarker to Abbas and Goharshād Hessaby. When he was seven, the family moved to Beirutmarker where he attended school. Around this time he learnt the Qur'an by heart and started to read the canonical texts of the Persian literature. At seventeen he obtained his Bachelor's in Arts and Sciences from the American University of Beirutmarker. Later he obtained his B.A. in civil engineering while working as a draftsman.He continued his studies and as a graduate of the Engineering school of Beirut was admitted to the École Superieure d'Electricitémarker and in 1925 graduated from this school at the same time he was employed by the SNCF (French National Railway) and started working in electric locomotive maintenance department He had a scientific mind and continued his research in Physics at the Sorbonnemarker University and obtained his Ph.D. in Physics from that University at the age of twenty-five.

In 1947, he published his classic paper on "Continuous particles". Following this, in 1957 he proposed his model of "Infinitely extended particles". The medal of the commandeur de la Légion d'honneur, France's highest scientific medal, was awarded to him for his achievements.

According to the Professor Hessaby Institute, the following were some of his accomplishments:
  • Founding the Highway Engineering school and teaching there from 1928
  • Survey and drawing of the first coastal road-map between Persian Gulfmarker ports
  • Founding the "teachers college" and teaching there from 1928
  • Construction of the first radio-set in Iran (1928)
  • Construction of the first weather-station in 1931
  • Installation and operation of the first radiology center in Iran in 1931
  • Calculation and setting of Iranian time (1932)
  • Founding the first private hospital in Iran (Goharshad Hospital) in 1933
  • Writing the University carechair and founding Tehran University (1934)
  • Founding the Engineering school in 1934 and acting as the dean of that school until 1936 and teaching there from then on
  • Founding the faculty of science and acting as its dean from 1942 to 1948
  • Commissioned for the dispossession of British Petroleum Company during the government of Dr Mossadegh and appointed as the first general manager of the National Iranian Oil Company
  • Minister of Education in the cabinet of Dr. Mossadegh from 1951 to 1952
  • Opposing the contract with the consortium while in the Senate of Iran in 1954
  • Opposing the membership of Iran in CENTO
  • Founding the Telecommunication Center of Assad-Abad in Hamedan (1959)
  • Writing the standards charter for the standards Institute of Iran (1954)
  • Founding the Geophysical Institute of Tehran University (1961)
  • Title of distinguished professor of Tehran University from 1971
  • Founding the atomic research center and atomic reactor at Tehran University
  • Founding the atomic Energy center of Iran, member of the UN scientific sub-committee of peaceful use of member of the international space committee (1981)
  • Establishment of Iran's space research committee and member of the international space committee (1981)
  • Establishment of the Iranian music society and founding the Persian language Academy

He continued lecturing at University for three working generations, teaching seven generations of students and professors. He spoke five living languages: Persian, French, English, German and Arabic and he also knew a little of Sanskrit, Latin, Greek, Pahlavi, Avestan, Turkish and Italian which he used for his etymological studies.

During the congress on "60 years of physics in Iran" the services rendered by him were deeply appreciated and he was entitled "the father of physics in Iran".

As Hesaby wished, he was buried in his motherland, Tafreshmarker.

He has a son and a daughter.

Key publications

  • Hessaby M, Model of an Infinite Particle, JOURNAL DE PHYSIQUE ET LE RADIUM 18 (5): 323-326 1957
  • Souchay P, Hessaby A, Confirmation et Nature de Faibles Acidites des Acidites Periodique et Tellurique, BULLETIN DE LA SOCIETE CHIMIQUE DE FRANCE 20 (6): 614-621 1953
  • Hessaby A, Souchay P, Etude des Periodates et Tellurates de Lithium, BULLETIN DE LA SOCIETE CHIMIQUE DE FRANCE 20 (6): 606-614 1953
  • Souchay P, Hessaby A, Existe-T-IL des Sels Basiques Dargent, BULLETIN DE LA SOCIETE CHIMIQUE DE FRANCE 20 (6): 599-606 1953
  • Hessaby M, Theoretical Evidence for the Existence of a Light-Charged Particle of Mass Greater than That of the Electron, Physical Review, Vol. 73, Issue 9, p. 1128 (1948). APS
  • Hessaby M, Continuous Particles, Proceedings of the National Academy of Sciences of the United States of America, Vol. 33, No. 6, pp. 189-194 (1947). JSTOR
  • Hessaby M, Continuous Particles, Proceedings of the American Physical Society, Minutes of the Meeting at Montreal, June 19-21, 1947, Physical Review, Vol. 72, No. 6, p. 536 (1947). APS

Awards and honours

  • Légion d'honneur; 1951: Officier, 1956: Commandeur, France.
  • Father of Iranian Physics, By Iran's Physical Society.

See also


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