Comments by thermochap

  • Surprisal as an information measure was first defined by Myron Tribus in his 1961 book Thermostatics and Thermodynamics, so that it is equal in bits to the base-2 log of 1 over the probability, with the result that e.g. the number of choices equals 2 to the number of bits.

    September 28, 2015

  • The proper velocity of an object is the map-frame distance traveled per unit proper-time on the clocks of the traveling object.

    September 28, 2015

  • Proper time is the frame-invariant time elapsed along the space-time trajectory of a clock traveling from one event to another.

    September 28, 2015