Wednesday , September 22 2021

# RIP is a kilogram that will never be the same again

Most people know that a pound weighs – 16 ounces. The secular among us can know that a kilogram is 2.2 pounds or 1000 grams. But do we really know these numbers mean? Settlement in measurement units is more complicated than it looks and people all over the world agree to change altogether. For more than a century, the international prototype of the kilograms of the world standard of kilograms was platinum and iridium cylinder, stored in France by the Bureau International des Poids et Mesures (International Office of Balances and Institutions). BIPM is an international organization that promotes standardization of international science and commerce by defining measurement standards that we all agree with. Therefore, BIPM has the IPK: Without this heavy duty cylinder, the world has no normal kilograms to determine how a kilogram weighs. Copies of IPK (sometimes called love "Le Grand K") are distributed all over the world so members can retain the standard and every IP of the IPK is measured every 40 years to make sure it's still a kilogram. Recent measurements, however, show that the masses of these Grand Ks differ from each other, causing trade, science and potentially sensitive areas, such as rocket, to cure where calculations are accurate. This system may seem bizarre and archaic. there is a good reason why the world has used this reference weight for many years: It is very difficult to guess that one kilogram is another way. Therefore, it is possible to think that different units of measure are their own natural laws, which are defined in conjunction with each other – for example, 24 hours a day, 60 minutes a hour, 60 minutes a minute – the truth is that measuring units are a historically defined phenomenon in the world. Metrology, study of measurement, these specific phenomena are known as artifacts. Max Fagin aviation engineer on Thursday, twisted thread, scientists have gone a long way over the years when they figure out how to go beyond the objects they can measure things without having to put them next to things. For example, one second was measured in 1 / 31556925.9747 around the Earth for the day. It is now defined as the amount of time oscillated on an electron containing cesium-133 at 9,192,631,770 times. This may be unnecessarily specific and frankly bizarre, but scientists can reasonably say that one second seconds, no matter where the universe is – and not whether it's a stopwatch. In short, scientists have moved the standard reference point for human-derived measurements and universal constants. Except for each kilogram. The second, like the kilogram, the meter, and the other four units, constitute the International Units of the System. These are the simplest measuring units to which all others are based. Today, most SI units can be determined without any artifact, but weighing kilograms is much harder because it requires complex calculations that make gravity more complicated. After all, though we often think of weight and weight as they are, they do not. The mass, measured in kilograms, is how much material per object. But scientists are planning to make IPK obsolete. This Kibble Balance comes in to save us. This device is under development in several laboratories. The United States National Institute of Standards and Technology and the National Physics Laboratory of the United Kingdom both work on this device, which hopefully redefines the kilograms in the Planck constant, which plays a central role in understanding the quantum mechanics for us. In short, this device does not determine the mass by measuring the mass, but by measuring the electromagnetic force between two plates. Oh, and all this is done in vacuum. Kibble Balance should simply be able to measure the mass of an object, such as IPK, from the point of view of electrical energy. To get all maths involved, check out the video below. However, for those who are not in the spirit of physics, it is sufficient to say that Kibble Balance should help the scientist redefine the kilogram. "One of the most important reasons for this work is the provision of international security." Ian Robinson The engineering department of the National Physics Laboratory told the Delano news channel in Luxembourg. "If the Pavillon de Breteuil" – where the IPK is stored – "burned tomorrow and the kilograms melted in the arch, there would be no reference to the metric weight system of the world." The current definition of kilogram is the weight of the bottle in Paris. " And this is not good enough for international science.
The original article can be found here