Facts about rare units Bashny.Net

To the question "how many centimeters in a meter," perhaps answer any student. A huge number of the units around us life. However, in the world there are units which you hardly heard. In this article you will learn some interesting facts about them. Savard

Music seeming so beautiful, and sometimes chaotic, in fact very closely related to mathematics. When it comes to scale Savard - the same thing.

The system is based around Savar - units, which is 1/301 octave (musical interval between two notes). If you know music theory, Savar- convenient unit approach in certain situations.

Despite its complex obscurity, Savard was actually invented twice by two different people. The first was Joseph Sauveur, who invented it in 1696 and called it "eptameride" (Savard - 1/7 meride, a logarithmic measure of the interval, which he invented). In the 20th century French physicist named Felix Savard began to apply this one and gave it its name.





Wales and Belgium

The English have a long history of use bizarre narrative units. The media especially like to describe the size of things in such terms as "the length of the bus", "soccer field", and "Olympic swimming pool." The most bizarre of these descriptive units is likely to Wales and Belgium. Wales, of course, about the same size as a country of about 20 000 square kilometers (8 000 sq. Miles).

This unit is originally from the times of the British Empire, and is used to describe the size of the different geographical areas in terms that would be understood by the common man. For example, when the Americans started the war in Vietnam, the British media have presented to the audience as "a country in Southeast Asia, which exceeds the size of Wales 14 times".

When Britain joined the European Union, Wales has been replaced by Belgium; country - 1, 5 times more than Wales, and can act as such, easily understandable unit. In addition, the "Belgium" obviously more international concept.



Equivalent dose Banana

There are many ways to measure the radiation, and most of them are named after scientists like Geiger, Roentgen or Sievert. And there is a banana equivalent dose.

Each banana that you eat is contaminated with a tiny amount of radiation. Ironically, this amount is approximately about 0, 1 Sv (sievert is the standard for evaluation of the biological effect of radiation). Although it is - apparently safe dose, it offers easy to show a comparison of radiation with abstract numbers. For example, to get the amount of radiation in Japan after the Fukushima disaster, you would have to eat 76 million bananas.

Banana equivalent dose (BED) may actually be the first unit of measure ever invented by comedian. Initially, it was a wonderful comparison chart published in the popular comic XKCD. Since this measurement was made like Forbes and BBC BBC because of its ease and accessibility.



Crab

Crab might seem like a unit for shellfish (or possibly venereal disease), but has no relation to the arthropod. Crabs and their cousins, millikraby used to express the intensity of the radiation sources in space.

Paradoxical name actually comes from the Crab Nebula, a vast remnant of an ancient supernova, known as an intense and steady source of cosmic X-rays. Just as the term "meter" was used for determining the metric measurements up to 1960, the Crab Nebula is the standard for cosmic radiation.

In recent years, scientists have observed that its radiation is not as stable as previously thought, therefore, the status of the crab as a sound unit is now the subject of some debate.



Second beard

Physics and engineering are known for using many different measurement systems, some of which are more funny than others. Second beard is one of the more bizarre. This is - a joke (but quite popular), a measure of short length, a certain distance, for which the average beard hairs grow in one second.

Second beard among many dimensions, inspired (and parodied) light year, the distance light, which can be overcome in one year. It is difficult to determine the exact measure, as there is no such thing as a "standardized beard." Despite this, the second beard usually considered to about 5 nanometers (nm). This is based on the fact that in one year, about 31, 5 million seconds and suggested that the "standard" beard grows about 15 centimeters (6 inches) per year.



Units acuity ASTA

Most people are familiar with the Scoville scale, which measures the sharpness of chili peppers. However, this scale is somewhat inaccurate, therefore, the real professionals scoff at the Scoville scale and ranked according to their spices acuity units ASTA. This scale measures the sharpness of pepper, using the technique of liquid chromatography, which allows for more accurate assessment than the Scoville scale. But as the Scoville is quite well known and standardized, ACTA is primarily used for color measurement range of products. This is important because the quality (and price) of chili powder, usually associated with the depth of its red color.



Sidarb

People who have been to Australia, possibly encountered the mysterious identity, which appears in the official documents and ordinary conversation. Get Sidarb strange name - the unit used to measure a large amount of rough water. It is named in honor of Sydney Harbour and is used in much the same as used by Wales and Belgium for the earth.

One Sidarb - that's about the amount of water in Sydney Harbour - about 562,000 megalitres during high tide. Not surprisingly, this unit is not gained popularity outside of Australia.



Furlong, firkin (small barrel) and biweekly

Many countries of units born initially as a joke or a strange idea of ​​one man, which eventually began to gain momentum. Furlong, Firkin (small barrel) and biweekly (FFF) are not any official: it is - a rare case of completely arbitrary measure, which is a parody of other systems. It is based around three main dimensions: furlong for the length (200 meters or 220 yards), firkin (small barrel) for weight (40 kilograms, or 90 pounds) and biweekly to determine the time (1.2 million seconds, or two weeks). Fortnight is based on the old English units, while others are a joke.

Although the three main units of the system (and their many derivatives) are nothing more than comic commentary on the many ridiculous measurement systems that exist, they are actually used in life. "Furlong in two weeks" and "firkiny two weeks" in-jokes known to mean "any vague one." Mikrodvuhnedelnik (1.2096 seconds) is often used along with more legal units in the calculation of the time - as a kind of joke engineer. For example, the function of the converter Google maintains mikrodvuhnedelnik.



Erlang

Erlang is one of the most common unit of measure with which we encounter in our everyday lives, even though we never realize it. Every second, as we speak on the phone, ergangi ticking in the counter; unit is used to measure the telecommunications traffic. One erlang equals one hour of continuous voice traffic. The measurements of Erlang vital and engineers to assist in the understanding of telecommunications and networking models that do not will fail by a large volume of calls.

The unit is called "Erlang" in honor of Agder Klerup Erlang known eccentric and talented engineer, who single-handedly created a whole field of analysis of telephone networks.



Barn

If there was ever a unit that seemed that was to be linked to agriculture, it is certainly "barn." The very name of the unit suggests agriculture and grazing cattle, and this could not be further from the truth. Barn - a unit of elementary particle physics (along with its cousins, femtobarn and inverse femtobarn), which is used to show the size, how many particles striking the sensor in collider experiments.

Barn began to be used in June 1943, when it began to appear in reports Los Alamos a secret laboratory. His so-called because of the fact that the original name of "Oppenheimer" and "Bethe" was deemed too difficult to use effectively. Scientists have invented a unit, which in humans is associated with agriculture and nothing more.



Source: deleysk.ru