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186 etched glass at Bankfield Museum. Glass etching, or "French embossing", is a popular technique developed during the mid-1800s that is still widely used in both residential and commercial spaces today.
Coire nan Lochan, a corrie of Bidean nam Bian on the southern side of Glen Coe Glencoe by Hugh William Williams, c. 1825–1829. The glen is U-shaped, formed by an ice age glacier, [9] about 12.5 kilometres (7 + 3 ⁄ 4 mi) long with the floor of the glen being less than 700 metres (3 ⁄ 8 mi) wide, narrowing sharply at the "Pass of Glen Coe".
Also acid ionization constant or acidity constant. A quantitative measure of the strength of an acid in solution expressed as an equilibrium constant for a chemical dissociation reaction in the context of acid-base reactions. It is often given as its base-10 cologarithm, p K a. acid–base extraction A chemical reaction in which chemical species are separated from other acids and bases. acid ...
Cheat sheets were historically used by students without an instructor or teacher's knowledge to cheat on a test or exam. [1] In the context of higher education or vocational training, where rote memorization is not as important, students may be permitted (or even encouraged) to develop and consult their cheat sheets during exams.
John Prebble, in Glencoe: the story of the massacre, analyzes the significance of the stories of the warnings at Henderson Stone in this way: The Campbells of Argyll’s Regiment were Highland, and the inviolability of hospitality was as sacred to them as to any other clan, murder under trust was as great a sin.
Isotherms of an ideal gas for different temperatures. The curved lines are rectangular hyperbolae of the form y = a/x. They represent the relationship between pressure (on the vertical axis) and volume (on the horizontal axis) for an ideal gas at different temperatures: lines that are farther away from the origin (that is, lines that are nearer to the top right-hand corner of the diagram ...
118 chemical elements have been identified and named officially by IUPAC.A chemical element, often simply called an element, is a type of atom which has a specific number of protons in its atomic nucleus (i.e., a specific atomic number, or Z).
In oligonucleotide chemistry, pore sizes of 500, 1000, 1500, 2000, and 3000 Å are used to allow the preparation of about 50, 80, 100, 150, and 200-mer oligonucleotides, respectively. To make native CPG suitable for further processing, the surface of the material is treated with (3-aminopropyl)triethoxysilane to give aminopropyl CPG.