Ivan A. Getting synchrotron at MIT Radiation Laboratory. He also was involved in the development of the Sparrow III and Hawk missile systems; as well as commercial production of transistors at Raytheon. As a consultant to the US government: implementation of the Quick Reaction Capability for Electronic Counter-Measures; establishment of the SHAPE Supreme Headquarters Allied Powers Europe Laboratory at the Hague; deployment of U.S. air defense capability called the Semi-Automatic Ground Environment (SAGE) radar system; direction of studies on MX missile basing and long-range combat aircraft; technical analysis and design of a long-range supersonic bomber capable of reaching the former Soviet Union and
Refraction different speed. The amount of ray bending is dependent on the amount of difference between sound speeds, that is, the variation in temperature, salinity, and pressure of the water. Similar acoustics effects are also found in the Earth's atmosphere. The phenomenon of refraction of sound in the atmosphere has been known for centuries; however, beginning in the early 1970s, widespread analysis of this effect came into vogue through the designing of urban highways and noise barriers to address the meteorological effects of bending of sound rays in the lower atmosphere. Refraction In physics refraction is the change in direction of