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In chemistry, the burn rate (or burning rate) is a measure of the linear combustion rate of a compound or substance such as a candle or a solid propellant.It is measured in length over time, such as millimeters per second or inches per second.
Tusa is a comune (municipality) in the Province of Messina in the Italian region of Sicily, located about 80 kilometres (50 mi) east of Palermo and about 120 kilometres (75 mi) west of Messina.
Ntare III Rushatsi, ex king of Burundi – 1680–1709; Mwezi III Ndagushimiye, ex king of Burundi – 1709–1739; Mutaga III Senyamwiza Mutamo, ex king of Burundi – 1739–1767
The Griesbaum coozonolysis is a name reaction in organic chemistry that allows for the preparation of tetrasubstituted ozonides (1,2,4-trioxolanes) by the reaction of O-methyl oximes with a carbonyl compound in the presence of ozone.
The Spanish King Federico III of Aragon gave the territory of Balestrate to the town of Partinico in 1307. According to a local legend, a crossbow (“balestra”) was used to shoot an arrow from the water's edge, its landing point determining the border of the town's environs and giving its eventual name: Balestrate.
First introduced by M. Pollak, [1] the Coulomb gap is a soft gap in the single-particle density of states (DOS) of a system of interacting localized electrons. Due to the long-range Coulomb interactions, the single-particle DOS vanishes at the chemical potential, at low enough temperatures, such that thermal excitations do not wash out the gap.
Fig. 1. (a) B 6 octahedron, (b) B 12 cuboctahedron and (c) B 12 icosahedron.. In metal borides, the bonding of boron varies depending on the atomic ratio B/M. Diborides have B/M = 2, as in the well-known superconductor MgB 2; they crystallize in a hexagonal AlB 2-type layered structure.
The 1981 Brink's robbery was an armed robbery and three related murders committed on October 20, 1981, by several Black Liberation Army members and four former members of the Weather Underground, who were at the time associated with the May 19th Communist Organization.