center of inertia
71Centrifugal force — Not to be confused with Centripetal force. Classical mechanics Newton s Second Law …
72Devil sticks — Children learning the pendulum The manipulation of devil sticks (also devilsticks, devil stixx, flower sticks, devil sticks, rhythm sticks, gravity sticks, or juggling sticks) is a form of gyroscopic juggling or equilibristics, and is generally… …
73Balance wheel — in a cheap 1950s alarm clock, the Apollo, by Lux Mfg. Co. showing the balance spring (1) and regulator (2) …
74Rigid body dynamics — Classical mechanics Newton s Second Law History of classical mechanics  …
75D'Alembert's principle — Classical mechanics Newton s Second Law History of classical mechanics  …
76Bogdanov Affair — Infobox Person name = Igor and Grichka Bogdanov birth date = birth date and age|1949|8|29 birth place = Saint Lary, Gers, FranceThe Bogdanov Affair is an academic dispute regarding the legitimacy of a series of theoretical physics papers written… …
77Molecular Hamiltonian — In atomic, molecular, and optical physics as well as in quantum chemistry, molecular Hamiltonian is the name given to the Hamiltonian representing the energy of the electrons and nuclei in a molecule. This Hermitian operator and the associated… …
78Scientific revolution — This article is about a period in the history of science. For the process of scientific progress via revolution, proposed by Thomas Kuhn, see Paradigm shift …
79Timeline of Islamic science and engineering — This timeline of Islamic science and engineering covers the general development of science and technology in the Islamic world during the Islamic Golden Age, usually dated from the 7th to 16th centuries.From the 17th century onwards, the advances …
80Pointing stick — This article is about a computer input device. For the teaching and presentation aid, see Pointer (rod). Pointing stick on a Lenovo ThinkPad …
