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Formaldehyde (/ f ɔːr ˈ m æ l d ɪ h aɪ d / ⓘ for-MAL-di-hide, US also / f ə r-/ ⓘ fər-) (systematic name methanal) is an organic compound with the chemical formula CH 2 O and structure H−CHO, more precisely H 2 C=O.
Ohm's law in Georg Ohm's lab book. Ohm's law was probably the most important of the early quantitative descriptions of the physics of electricity. We consider it almost obvious today. When Ohm first published his work, this was not the case; critics reacted to his treatment of the subject with hostility.
Because many definitions of standard temperature and pressure differ in temperature significantly from standard laboratory temperatures (e.g. 0 °C vs. ~25 °C), reference is often made to "standard laboratory conditions" (a term deliberately chosen to be different from the term "standard conditions for temperature and pressure", despite its ...
Nitrous oxide (dinitrogen oxide or dinitrogen monoxide), commonly known as laughing gas, nitrous, nitro, or nos, [4] is a chemical compound, an oxide of nitrogen with the formula N 2 O. At room temperature, it is a colourless non-flammable gas, and has a slightly sweet scent and taste. [5]
At present, there is no single equation of state that accurately predicts the properties of all substances under all conditions. An example of an equation of state correlates densities of gases and liquids to temperatures and pressures, known as the ideal gas law, which is roughly accurate for weakly polar gases at low pressures and moderate temperatures.
The Code was thought to be the earliest Mesopotamian law collection when it was rediscovered in 1902—for example, C. H. W. Johns' 1903 book was titled The Oldest Code of Laws in the World. [32] The English writer H. G. Wells included Hammurabi in the first volume of The Outline of History , and to Wells too the Code was "the earliest known ...
Rich Man, Poor Man is a 1969 novel by Irwin Shaw. It is the last of the novels of Shaw's middle period before he began to concentrate, in his last works such as Evening In Byzantium, Nightwork, Bread Upon The Waters and Acceptable Losses on the inevitability of impending death. The title is taken from the nursery rhyme "Tinker, Tailor".
Quantum mechanics is a fundamental theory that describes the behavior of nature at and below the scale of atoms. [2]: 1.1 It is the foundation of all quantum physics, which includes quantum chemistry, quantum field theory, quantum technology, and quantum information science.