mass properties
51Tuned mass damper — An animation showing the movement of a skyscraper versus the mass damper. The green indicates the hydraulic cylinders used to damp the motion of the skyscraper. A tuned mass damper, also known as an active mass damper (AMD) or harmonic absorber,… …
52History of mass spectrometry — The history of mass spectrometry dates back more than one hundred years and has its roots in physical and chemical studies regarding the nature of matter. The study of gas discharges in the mid 19th century led to the discovery of anode and… …
53Critical mass — This article is about nuclear fission reactions. For other uses, see Critical mass (disambiguation). As part of a re creation of a 1945 criticality accident, a plutonium pit is surrounded by blocks of neutron reflective tungsten carbide. The… …
54Effective mass — In solid state physics, a particle s effective mass is the mass it seems to carry in the semiclassical model of transport in a crystal. It can be shown that, under most conditions, electrons and holes in a crystal respond to electric and magnetic …
55Solar mass — Weight of the Sun redirects here. For the song, see Tao of the Dead. Size and mass of very large stars: Most massive example, the blue Pistol Star (150 ). Others are Rho Cassiopeiae (40 …
56Monoisotopic mass — This article is about the mass spectrometry term. For a list of monoisotopic elements, see stable isotope. The monoisotopic mass is the sum of the masses of the atoms in a molecule using the unbound, ground state, rest mass of the principal (most …
57Some properties of the carbon group elements — ▪ Table Some properties of the carbon group elements carbon silicon atomic number 6 14 atomic weight 12.011 28.086 colour of element colourless (diamond [D]), black (graphite [G]) gray melting point (°C) >3,500 (D) 1,420 boiling point (°C) 4,827… …
58Some properties of the boron group elements — ▪ Table Some properties of the boron group elements boron aluminum atomic number 5 13 atomic weight 10.811 26.9815 colour of element brown silver white melting point (°C) 2,100–2,200 659.7 boiling point (°C) sublimes 2,550 2,467 density ● solid …
59Reduced mass — is the effective inertial mass appearing in the two body problem of Newtonian mechanics. This is a quantity with the unit of mass, which allows the two body problem to be solved as if it were a one body problem. Note however that the mass… …
60Initial mass function — The initial mass function (IMF) is an empirical function that describes the mass distribution (the histogram of stellar masses) of a population of stars in terms of their theoretical initial mass (the mass they were formed with). The properties… …
