Regular ruler : appearance history, interesting facts
Was there really a time when there was no ruler yet? How did people manage without it when they needed to draw something?
Where there is a regular ruler, there is no problem. Schoolchildren do not even go to school without such a subject, and drafting engineers do not part with many types of rulers right up to retirement. Ruler. Approximately the same as we know it today, it first appeared during the Great French Revolution, that is, in France.
It turns out that she is more than two hundred years old.
But here it is worth digging deeper. During excavations of the ancient city of Pompeii, which instantly became deserted and deserted due to a volcanic eruption, archaeologists found carefully carved tablets, which most likely belonged to ancient architects to create various drawings.
In the Middle Ages, monks, who were the most literate segment of the population of that time, used thin lead plates for this. In a number of European countries and in Ancient Russia, metal rods were used for drawing, which are described in chronicles as "shiltsy" or "rule".
All the devices described were far from the most convenient, and it seems so now, when we have at our disposal a fairly convenient ruler, which can be of any shape and length.
But at that moment there was no alternative. People used what they had, drew with boards and iron, because there was simply nothing to compare with.
Such a being as a person is designed in such a way that he constantly tries to strive for everything new, to improve that already is. This is how even the line was gradually improved. Who can know - perhaps after a while we will only have smart laser pencils and one swipe will be enough to make the drawing ready.
And people will wonder even then: was there really a time when the previous generation used a standard wood / metal / plastic ruler? How ancient they are! But at the moment we need a ruler, and that's a fact.
..., then the ruler might not have been, if the meter (measure of measurement) had not been invented.
In 1789, in France, as already mentioned, the actions of the revolution began to develop. It may seem, but how will the line go sideways here? But the revolution became a kind of impetus, a catalyst. Scientists received the task that it is required to introduce an updated system of measures.
At that moment in France, everything was replaced with a new one, in general, as in the whole world. At that moment, the calendar, the name of the months, the state structure, money were replaced, and even the system of measures was not spared.
And then on May 8, 1790 (some sources indicate April 8), the Decree on the Reform of Measures was adopted (it was adopted by the Constituent National Assembly).
At that moment, a commission was assembled, which included many scientists. The Commission presented a project to take as a meter one forty-millionth part of the length of the meridian of the earth. The introduction of such a unit of measurement in the system of measures in France crossed all boundaries over time, and it became an international measure. The meter has taken root in every country and has become an international measure.
But all this was after, and at first, the Royal Society of England did not officially want to accept such a system of measures, probably they did not want to strain. The British decided to observe from the sidelines, and rightly believed that if something really came out, they would accept it and use it for their own purposes, and if it didn’t work out, then there would be nothing to lose, and there would be no shame. Smart move.
Then, in splendid isolation, the French began to accurately measure the length of the meridian of the earth. This work was led by the best of the best academicians.
The measurements were taken in revolutionary times, and this greatly complicated the process, and the group itself was arrested a couple of times due to misunderstandings.
At the cost of tremendous efforts, the work was completed, and now, for the new unit of length, they took the precisely measured forty-millionth part of the geographical meridian (and its length is 40,000 km), and just one of them passed through Paris. French academics measured its arc from Barcelona to Dunkirk. As you can see, the ruler is an interesting thing if you know what is the story behind its creation.
After that, everything was much simpler, and the meter was divided into centimeters, and it was divided into millimeters, and right there, scientists decided not to postpone everything for later, but made two platinum rulers with a width of 2.
5 cm and a length of 1 meter. This device received the name "republican meter", which later became the standard.
It turned out that with the help of such a ruler it was very convenient to make drawings, and it turned out that two birds with one stone were killed with one shot - they created a ruler and a meter. Previously, rulers with metric division were only at the disposal of academicians, and later students began to use them.
In an ordinary school, rulers began to appear only at the beginning of the 19th century.
In Russia, such lines came only in 1812, and then, as war trophies. Production was debugged only in the 20th century, and all thanks to the famous Russian scientist Mendeleev, who took the initiative to create a metric system of measures.
Posted By: Work Style |05, Nov 2020
Posted By: Work Style |06, Nov 2020
Posted By: Work Style |05, Nov 2020
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Posted By: Work Style |01, Nov 2020