Casimiro del rosario biography

Filipino scientist

Casimiro Villacin del Rosario (June 13, 1896 – September 15, 1982) was a Filipinoscientist. He was named a national scientist in the Philippines in 1983 for being a pioneer in physics, meteorology, and astronomy in the Philippines. Del Rosario is recognized for his restoration of the war-damaged Philippine Observatory and for his leadership in establishing various observatories to study the changing times and galaxies. He was an officer of the World Meteorological Organization and led the establishment of the Philippine Science High School.

Biography

On June 13, 1896, Del Rosario was born in Bantayan in the Philippine province of Cebu. His parents were Pantaleon del Rosario, a farmer, and Benita Villacin. Being four years old when he was in first grade, he went the University of the Philippines after graduating from the Cebu High School. He was nineteen when he completed his first undergraduate degree, a Bachelor of Arts from the University of the Philippines in 1915. He obtained another undergraduate degree in civil engineering from the same university in 1918. Del Rosario then taught his alma mater for some time, after which he left for the United States for further study. He completed his master's in physics at Yale in 1924, topping his graduating class of 48 international students. During his time at Yale, he received the coveted Junior Sterling Research Fellowship and was also a roommate of Ernest O. Lawrence. In 1926, he was awarded a four-year fellowship by the Bartol Research Foundation in Philadelphia. He obtained his PhD in 1932 from Penn with the dissertation "Very Soft X-ray Spectra of Heavy Elements".

Due to the recognition of his published research by leading American physicists, del Rosario was offered to teach at the Howard University in Washington. He chose to go back to the Philippines and ta

Casimiro I. del Rosario

(13 Hunyo 1896–15 Setyembre 1982)

Si Casimiro V. del Rosario (Ka·si·mí·ro Vi del Ro·sár·yo) ang itinuturing na “Dekano ng Pisika sa Filipinas.” Kilalá ang kani-yang kadalubhasaan sa larangan ng pisika, meteo-rolohiya, at astronomiya hindi lámang sa Filipinas kundi sa iba’t ibang panig ng daigdig. Isa rin siyá sa mga pilìng siyentista ng daigdig na unang nagpakadalubhasa sa pisikang nuklear. Malaki rin ang naitulong ni del Rosario sa pagpapaunlad at modernisasyon ng Phillipine Weather Bureau. Iginawad sa kaniya ang Pambansang Alagad ng Agham noong Mayo 1982.

Nása Estados Unidos pa ay marami na sa kaniyang siyen-tipikong ulat at pananaliksik ang nalathala sa mga internasyonal na dyornal at kinilála ng mga pangunahing insti-tusyon sa agham at pisika. Isinulat niyá ang sumusunod: “Velocity Distribution Among ftermionic Electrons” (1927), “High Voltage Electrical Discharge in Very High Vacuums” (1928), “Emission of Electrons Under Intense Electric Fields” (1929), “Effect of Radioactive Radiation on Euglena” (1929), at “Wavelengths of Very Soft X-Rays from Heavy Elements” (1932). Bagaman maraming oportunidad sa Estados Unidos, pinilì niyáng magbalik-bayan upang maglingkod. Bumalik siyá sa bansa noong 1933 at nagpatuloy ng pagtuturo sa Unibersidad ng Pilipinas. Naging punòng administrador siyá ng Philippine Weather Bureau nang sakupin ng bansang Japan ang Filipinas.

Nagsilbi siyá nang palihim sa kilusang gerilya upang labanan ang mga mananakop. Pinamunuan niyá ang pag-tatatag ng Guerilla Weather Station sa Bulacan at nagdis-enyo siyá ng mga teleskopyong maaaring gamitin ng mga gerilya sa gawaing paniniktik at depensa. Pagkatapos ng digmaan, nawasak ang pasilidad ng Philippine Weather Bureau at nasúnog ang mahahalagang talâ, ulat, at dokumento. Sa loob lámang ng ilang taon ay matagumpay niyáng napamunuan ang muling pagtatatag ng Weather Bureau at pagsasanay ng mga bagong kawani.

Isinilang si del Rosario noong 13 Hunyo 1896 sa isla ng Bantay

Casimiro Del Rosario is a Filipino scientist, physicist and astronomer. In 1984, he was given the prestigious National Scientist Award.

Personal Information
Full Name : Casimiro Del Rosario
Birth Date : June 13, 1896
Died : September 15, 1982
Birthplace : Bantayan, Cebu, Philippines

Education
College : University of the Philippines, 1918
Course : Civil Engineering
Master : Physics, Yale University, USA, 1924
Doctorate : Physics, University of Pennsylvania, USA, 1932

Career Highlights
* Director, Philippine Weather Bureau for 11 years
* Vice-chairman, National Science Development Board in 1958

Contribution to Science
* Researches on ultraviolet light of different wavelengths, effect of radioactive radiation on Euglena, high voltage electrical discharges in a vacuum
* Co-founder of the Bartol Research Foundation in Philadelphia, an institution which did pioneering researches in physics

Award
1984 – National Scientist of the Philippines

RELATED: List of Famous Filipino Scientist and Their Contributions

See also: List of Famous Filipino Authors and Their Books

Dr. del Rosario's contributions to science are in physics, meteorology and astronomy. His work on soft x-rays which required high vacuum photography earned him utf8mb4_general_ci. He co-founded the Bartol Research Foundation in Philadelphia which undertook pioneering researches in nuclear physics.

His researches on ultraviolet light of different wavelenghts, on the effewct of radioactive radiations on euglena, on the high voltage electrical discharges in high vacuum, soft x-rays, and many others earned for himself and his country lasting honor and distinction.

For 11 years Dr. del Rosario headed the Philippine Weather Bureau and was the first Vice-Chairman of the National Science Development Board.

Birthdate: 18 June 1896
Died: 15 September 1982