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Date: 4 months ago   Category: Technologies

Scientists want to get rid of an extra kilo


The speech about the standard which is stored in the International bureau of measures and scales in France. It will be replaced with a universal formula on the basis of laws of quantum physics of the Photo: BIPM/Reuters Scientists plan to refuse use of a standard of kilogram (a platino-iridium cylinder) which is stored in the International bureau of measures and scales, Associated Press reports. During the general conference on measures and scales in Versailles it will be replaced with a universal formula on the basis of laws of quantum physics. What were scientists not pleased by a kilogram standard with? The leader of popular scientific YouTube channel Veritasium Derek Mueller tells about it: "At kilogram of a problem, since 1789 it was defined as the mass of a metal cylinder in the locked storage in the cellar of France. For the last 100 years exact measurements of mass of a standard and also his doubles in the Boards of Weights and Measures showed worldwide that masses differs. It became clear that the dispersion between two standards can reach about 15 micrograms (15 shares on one billion). The changing standard of weight — it is unacceptable. The kilogram is the last from parameters of the International System of Units, leaning on a physical object, all others passed to absolute measures. Replacement allows to choose a reference point not a physical object, but an invariable constant of the Universe". Will be determined by a new formula of kilograms by amount of electric energy which is necessary to get moving forward an object weight in kilogram. Energy, in turn, will be calculated on the basis of Planck's constant. Besides, determination of other main international units of measure will be discussed at a conference of the International bureau of measures and scales: ampere, kelvin and asking. To add BFM.ru to your sources of news?

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