Interesting about math

Today we share with you oiginalnymi and unusual facts from the world of serious science. Place for frivolous or simply fascinating, there is any exact science. The main thing is the desire to find it.

Among all the figures with the same perimeter, the circle will be at the biggest square. Conversely, among all the figures with the same area, the circle will have the smallest perimeter.





In fact, the moment - it is the unit of time, which lasts about a hundredth of a second.



The number 18 is the only one (except for zero) number, sum of digits which is half himself.



In a group of 23 people or more, the probability that the two coincide birthday, more than 50%, and in the group of 60 people this probability is about 99%.



In mathematics, there are: the theory of braids, game theory and the theory of knots.



The cake can be cut by three touches of the knife into eight equal parts. Moreover, in two ways.



2 and 5 - the only prime numbers ending in 2 and 5 :)



Zero - a unique number that can not be written in Roman numerals.



The equal sign "=" first applied Briton Robert Record in 1557, the year.



The sum of the numbers from 1 to 100 equals 5050.



Since 1995, the year in Taipei, Taiwan, residents are allowed to delete the figure four, as in the Chinese language, this figure sounds identical to the word "death." In many buildings, there is no fourth floor.



It is believed that the number 13 was unlucky due to the Last Supper, which was attended by 13 people, including Jesus. 13th was Judas Iscariot.



Charles Lutwidge Dodgson - a little-known British mathematician who has devoted much of his life logic. Nevertheless, it is a world-renowned writer, who wrote under the pseudonym Lewis Carroll.



The first female mathematician in history, considered Hypatia Greek woman, who lived in Alexandria, Egypt in the IV-V centuries AD.



American George Dantzig, a student arrived late to class, and mistook the equation on the chalkboard as a homework assignment. With some difficulty, but the future scientist to handle them. As it turned out, these were two "unsolvable" problems in statistics, over the resolution which scientists struggled for many years.



Modern genius and mathematics professor Stephen Hawking argues that only studied math in school. In times of teaching of mathematics at Oxford, Stephen was just reading a textbook ahead of their own students for a couple of weeks.



In 1992, Australian supporters have united for the sake of winning the lottery. At stake was $ 27 million. The number of combinations 6 of 44, was a little more than seven million, while the cost of a lottery ticket 1 dollar. These supporters have created a fund to which each of the 2,500 people put three thousand dollars. The result - winning return 9000 each.



Sofya Kovalevskaya, for the sake of science, had to arrange a marriage. In Russia, women were forbidden to study science. His father was against his daughter out abroad. The only way it turned marriage. However, later, he became the de facto marriage of Sophia and even gave birth to a daughter.



Here are the facts from the world of mathematics seemed to us the most interesting.