Philip S. Callahan was born on August 29, 1923, at Fort Benning, Georgia. He entered the U.S. Army Air Force, San Antonio, Texas, in 1942, and served two years in the European Theater of Operations during World War II. Hiking around the world after the war, he worked as a free lance photographer and writer. On his return to the United States he matriculated at Fordham University New York, New York. He received his B.A. and M.S. degree from the University of Arkansas and his Ph.D. from Kansas State University. He joined the staff of the Entomology Department at Louisiana State University in March 1956 as Assistant Professor. He was promoted to Associate Professor in 1959. He joined the U.S. Department of Agriculture, in Southern Grain Insects Research Laboratory, Tifton, Georgia in July 1962 as Project Leader for insect Biophysics. He was also Professor of Entomology on the Graduate Faculty of the University of Georgia. In 1966, he received the Superior Service Award of the U.S. Department of Agriculture from the Secretary of Agriculture. He also received the annual award for distinguished research from the University of Georgia, Chapter of Sigma Xi and also the Sears Roebuck Foundation Award for contributions to agriculture. In 1969, he transferred to USDA Insect Attractant and Behavior Laboratory at Gainesville, Florida. His research involves the utilization of nonlinear far infrared radiation by biological systems and its applications to insect control and medicine. He has developed theories of insect communication based on waveguide characteristics of insect spines and has postulated that such spines are thermoelectret-coated dielectric waveguide aerials with the ability to receive short wavelength IR and microwave frequencies. His work in biophysics might best be called studies in insect molecular bioelectronics. He is the author of 106 scientific papers and 12 books on science and a full professor on the graduate faculty of the University of Florida. He is one of 5% of U.S. Scientists in the Who’s Who of Technology today. He retired from the USDA on June 20, 1986, and is now on the staff of the Olive W. Garvey Center for the improvement of Human Functioning, Inc., Wichita, Kansas as an infrared systems and low energy consultant.
Philip S. Callahan, Ph. D., schooled as an entomologist, was stationed in Ireland as a radio technician during World War II. He has written two books dealing specifically with his discoveries there of the seemingly magical properties of the ancient Irish round towers and of certain rocks and rock powders. Titled Nature's Silent Music and Paramagnetism--Rediscovering Nature's Secret Force of Growth
Dr. Callahan explains that a particle moving faster than the speed of light is called a tachyon, and a message sent by such a particle would actually arrive before it was sent. He also states that he published, in 1986, the first experimental proof that tachyon particles actually exist. (One of the world's great unsolved mysteries is why Dr. Callahan has never been honored with the Nobel Prize in physics for such an amazing and historic achievement.)
- Blum, M. S.; Callahan, P. S. 1963. The venom and poison glands of Pseudomyrmex pallidus (F. Smith). Psyche (Camb.) 70: 69-74.