Proper velocity Proper velocity In relativity, proper velocity, also known as celerity, is an alternative to velocity for measuring motion. Whereas velocity relative to an observer is distance per unit time where both distance and time are measured by the observer, proper velocity relative to an observer divides observer-measured distance by the time elapsed on the clocks of the traveling object. Proper velocity equals velocity at low speeds. Proper velocity at high speeds, moreover, retains many of the properties that velocity loses in relativity compared with Newtonian theory. For example, proper velocity equals momentum per unit mass at any speed, and therefore
N. S. Satya Murthy Indian Academy of Sciences elected Murthy as a fellow in 1975. The Council of Scientific and Industrial Research awarded him the Shanti Swarup Bhatnagar Prize, one of the highest Indian science awards in 1979. He became an elected fellow of the Indian National Science Academy in 1981. He was also a life member of the Magnetics Society of India. The Indian Physics Association has instituted an annual award, "N. S. Satya Murthy Memorial Award" for recognizing research excellence in physical sciences among young scientists. N. S. Satya Murthy Nivrathi Suryanarayanashastry Satya Murthy (5 February 1936 – 8 October 1984) was