period of free oscillations
11vibration — vibrational, adj. vibrationless, adj. /vuy bray sheuhn/, n. 1. the act of vibrating. 2. the state of being vibrated. 3. Physics. a. the oscillating, reciprocating, or other periodic motion of a rigid or elastic body or medium forced from a… …
12List of unsolved problems in physics — This is a list of some of the major unsolved problems in physics. Some of these problems are theoretical, meaning that existing theories seem incapable of explaining a certain observed phenomenon or experimental result. The others are… …
13Heavy water — Not to be confused with hard water or tritiated water. Deuterium oxide IUPAC name …
14100,000-year problem — The 100,000 year problem is a discrepancy between past temperatures and the amount of incoming solar radiation, or insolation, which grows and shrinks periodically on a 100,000 year (100 ka) timescale.Due to variations in the Earth s orbit, the… …
15List of important publications in geology — This is an incomplete list, which may never be able to satisfy particular standards for completeness. You can help by expanding it with reliably sourced entries. This is a list of important publications in geology, organized by field. Some… …
16Mechanical similarity — Let us consider a system of particles and assume that the interaction energy between any couple of particles has the form , where r is the distance between the two particles. In such a case the equations of motion permit a series of geometrically …
17mechanics — /meuh kan iks/, n. 1. (used with a sing. v.) the branch of physics that deals with the action of forces on bodies and with motion, comprised of kinetics, statics, and kinematics. 2. (used with a sing. v.) the theoretical and practical application …
18Earth Sciences — ▪ 2009 Introduction Geology and Geochemistry The theme of the 33rd International Geological Congress, which was held in Norway in August 2008, was “Earth System Science: Foundation for Sustainable Development.” It was attended by nearly… …
19Invention of radio — Great Radio Controversy redirects here. For the album by the band Tesla, see The Great Radio Controversy. Contents 1 Physics of wireless signalling 2 Theory of electromagnetism …
20Action potential — In physiology, an action potential is a short lasting event in which the electrical membrane potential of a cell rapidly rises and falls, following a consistent trajectory. Action potentials occur in several types of animal cells, called… …
