Casimiro del rosario biography of barack

Casimiro del Rosario

Filipino scientist

Casimiro Villacin del Rosario (June 13, – September 15, ) was a Filipinoscientist. He was named a national scientist in the Philippines in 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[1][2] and led the establishment of the Philippine Science High School.

Biography

On June 13, , 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 [3] He obtained another undergraduate degree in civil engineering[4] from the same university in 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 , 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.[5] In , he was awarded a four-year fellowship by the Bartol Research Foundation in Philadelphia.[5] He obtained his PhD in from Penn with the dissertation "Very Soft X-ray Spectra of Heavy Elements".[6]

Due to the recognition of his published research by leading American physicists, del Rosario was offered to teach at the Howard University in Washington.[7] He chose to go back to the Philippines and taught Physics at the University of the Philippines. He was later appointed dean of this faculty and was one of the only two UP professors with a PhD in physics.[7] At the outbreak of World War II in , he joined the Weather Bureau and acted as the chief of the Astronomical Division. His wartime contributions to the guerrilla effort against the Japanese include the establishment of the Guerilla Weather Station in Bulacan's Victory Hill[8] and building three reflecting telescopes with 9-inch and 1 2-inch apertures to help the guerrillas with their defensive tactics and reconnaissance efforts.[7]

From to , del Rosario was head of the Philippine Weather Bureau. He presided over the restoration of the status of the Philippine Observatory and also the restoration of the Philippine Astronomical Observatory. He also helped establish the Philippine Atmospheric, Geophysical and Astronomical Services Administration (PAGASA). He was the chairman of the Division of Physical and Mathematical Sciences of the National Research Council of the Philippines,[9] and was the first Vice-Chairman and also Executive Director of the National Science Development Board,[10] the forerunner of the Department of Science and Technology. From to , del Rosario was an ex-officio member of the executive committee of the World Meteorological Organization (WMO)[1] and was president of a regional association of the WMO, which included the Philippines, Australia, Indonesia, New Zealand among others.[2]

As a scientist, one of del Rosario's major contributions to astrophysics was his research into ultra-violet light of different wavelengths, which required high vacuum photography. He also investigated ionizing radiation and its effects, electrical discharge in a high vacuum, and many others. He was also co-founder of the Bartol Research Foundation, which did pioneering research in physics. He received various awards for his work, such as the Presidential Award in [11] He also received the University of the Philippines Alumni Award and was appointed National Scientist of the Philippines in

Del Rosario maintained his hobby of making telescopes in his retirement years.[7] He was married to Esperanza Ouano, and he died in at the age of

Selected bibliography

  • del Rosario, C.: The Effect of a Hydrogen Atmosphere on the Velocity Distribution Among Thermionic Electrons, Phys. Rev., 28, 4, , October
  • del Rosario, C.: Low-pressure electric discharge in intense electric fields, Journal of the Franklin Institute, , No.2, –, February
  • del Rosario, C.: Low-pressure electric discharge, Journal of the Franklin Institute, , No.1, –, January
  • Swann, W.F.G., del Rosario, C.: The effect of radioactive radiations upon euglena, Journal of the Franklin Institute, , No.3, –, March
  • Swann, W.F.G., del Rosario, C.: The effect of certain monochromatic ultraviolet radiation on euglena cells, Journal of the Franklin Institute, , No.5, –, May
  • del Rosario, C.: Very Soft X-Ray Spectra of Heavy Elements, Phys. Rev., 41, 2, , July

References

Sources

  • National Historical Institute (), Filipinos in History, Vol III, Manila, NHI
  • Carlos Quirino () Who's who in Philippine history, Tahanan Books, Manila