Mechanical energy swing because of the work done by the pendulum to oppose these non-conservative forces. That the loss of mechanical energy in a system always resulted in an increase of the system's temperature has been known for a long time, but it was the amateur physicist James Prescott Joule who first experimentally demonstrated how a certain amount of work done against friction resulted in a definite quantity of heat which should be conceived as the random motions of the particles that comprise matter. This equivalence between mechanical energy and heat is especially important when considering colliding objects. In an elastic collision,
Homosexualities: A Study of Diversity Among Men and Women review from Michael Lynch in "The Body Politic". The book was also reviewed by Norman C. Murphy in "The Advocate". With Dean Gengle, Murphy presented a discussion with Bell about his book. Lynch argued that "Homosexualities" was in part an attempt by Bell and Weinberg to overcome statistical weaknesses in the work of Kinsey and his colleagues, and that as a result they had put more effort into "data processing" than into "understanding the premises and conclusions of the study." He suggested that they were "sometimes silently at odds" with Kinsey and his colleagues, and that they had limited their