reduced mass
81Infrared spectroscopy — (IR spectroscopy) is the subset of spectroscopy that deals with the infrared region of the electromagnetic spectrum. It covers a range of techniques, the most common being a form of absorption spectroscopy. As with all spectroscopic techniques,… …
82Kepler's laws of planetary motion — In astronomy, Kepler s Laws of Planetary Motion are three mathematical laws that describe the motion of planets in the Solar System. German mathematician and astronomer Johannes Kepler (1571–1630) discovered them.Kepler studied the observations… …
83Hartree — A hartree (symbol E h) is the atomic unit of energy and is named after physicist Douglas Hartree.The hartree energy is equal to the absolute value of the electric potential energy of the hydrogen atom in its ground state. This is also almost… …
84Specific orbital energy — In the gravitational two body problem, the specific orbital energy (or vis viva energy) of two orbiting bodies is the constant sum of their mutual potential energy ( ) and their total kinetic energy ( ), divided by the reduced mass. According to… …
85Sleeve valve — The sleeve valve is a type of valve mechanism for piston engines, distinct from the more common poppet valve. They saw use in some pre World War II luxury cars, sports cars, the Willys Knight car and light truck, and saw substantial use in… …
86Genesis I — Infobox Space station station = Genesis I station station image size = station image caption = Image from one of the seven exterior cameras on Genesis I . NSSDC ID = 2006 029A sign = NORAD #29252 (1) crew = Unmanned launch = July 12, 2006… …
87Genesis II — Infobox Space station station = Genesis II station station image size = station image caption = Artist rendering of Genesis II NSSDC ID = 2007 028A sign = NORAD #31789 (1) crew = Unmanned launch = June 28, 2007 15:02:00 UTC (2) launch pad =… …
88приведенная масса механизма — приведенная масса Масса, которую надо сосредоточить в данной точке механизма (точке приведения), чтобы кинетическая энергия этой материальной точки равнялась сумме кинетических энергий всех звеньев механизма. [Сборник рекомендуемых терминов.… …
89Heavy water — Not to be confused with hard water or tritiated water. Deuterium oxide IUPAC name …
90Rutherford scattering — In physics, Rutherford scattering is a phenomenon that was explained by Ernest Rutherford in 1911,[1] and led to the development of the Rutherford model (planetary model) of the atom, and eventually to the Bohr model. It is now exploited by the… …
