1. Английский математик Абрахам де Муавр в престарелом возрасте однажды обнаружил, что продолжительность его сна растёт на 15 минут в день. Составив арифметическую прогрессию, он определил дату, когда она достигла бы 24 часов — 27 ноября 1754 года. В этот день он и умер.
2. Религиозные евреи стараются избегать христианской символики и вообще знаков, похожих на крест. Например, ученики некоторых израильских школ вместо знака «плюс» пишут знак, повторяющий перевёрнутую букву «т».
3. Подлинность купюры евро можно проверить по её серийному номеру буквы и одиннадцати цифр. Нужно заменить букву на её порядковый номер в английском алфавите, сложить это число с остальными, затем складывать цифры результата, пока не получим одну цифру. Если эта цифра — 8, то купюра подлинная. Ещё один способ проверки заключается в подобном складывании цифр, но без буквы. Результат из одной буквы и цифры должен соответствовать определённой стране, так как евро печатают в разных странах. Например, для Германии это X2.
4. Бытует мнение, что Альфред Нобель не включил математику в список дисциплин своей премии из-за того, что его жена изменила ему с математиком. На самом деле Нобель никогда не был женат. Настоящая причина игнорирования математики Нобелем неизвестна, но есть несколько предположений. Например, на тот момент уже существовала премия по математике от шведского короля. Другое — математики не делают важных изобретений для человечества, так как эта наука имеет чисто теоретический характер.
5. Треугольник Рело — это геометрическая фигура, образованная пересечением трёх равных кругов радиуса a с центрами в вершинах равностороннего треугольника со стороной a. Сверло, сделанное на основе треугольника Рело, позволяет сверлить квадратные отверстия (с неточностью в 2%).
6. В русской математической литературе ноль не является натуральным числом, а в западной, наоборот, принадлежит ко множеству натуральных чисел.
7. Американский математик Джордж Данциг, будучи аспирантом университета, однажды опоздал на урок и принял написанные на доске уравнения за домашнее задание. Оно показалось ему сложнее обычного, но через несколько дней он смог его выполнить. Оказалось, что он решил две «нерешаемые» проблемы в статистике, над которыми бились многие учёные.
8. Сумма всех чисел на рулетке в казино равняется числу дьявола — 666.
9. Софья Ковалевская познакомилась с математикой в раннем детстве, когда на её комнату не хватило обоев, вместо которых были наклеены листы с лекциями Остроградского о дифференциальном и интегральном исчислении.
10. В штате Индиана в 1897 году был выпущен билль, законодательно устанавливающий значение числа Пи равным 3,2. Данный билль не стал законом благодаря своевременному вмешательству профессора университета.
Translation:
1. The English mathematician Abraham de Moivre in old age, once discovered that the duration of his dream growing up to 15 minutes a day. Having made an arithmetic progression, he set a date when it would have reached 24 hours - 27 November 1754. On that day he died.
2. Religious Jews are trying to avoid at all Christian symbols and signs, similar to the cross. For example, the students some Israeli schools instead of the "plus" sign written, echoing the inverted "T".
3. Euro banknotes authenticity can be verified by its serial number and a letter of eleven digits. You need to replace the letter on its serial number in the English alphabet, add this number to the others, then add the numbers the result, until we get a single digit. If this number - 8, the note is genuine. Another way to check is like folding the figures, but without the letter. The result of one letter and number should correspond to a particular country, as the euro printed in different countries. For example, for Germany it is X2.
4. Some people believe that Alfred Nobel did not include math in your premium list of disciplines because of the fact that his wife betrayed him with a mathematician. In fact, Nobel was never married. The real reason for ignoring the Nobel of mathematics is not known, but there are a few suggestions. For example, at that time had already existed Prize in mathematics from the Swedish king. Others - Mathematics does not make important inventions for humanity, because this science is purely theoretical.
5. Reuleaux triangle - is a geometric figure formed by the intersection of three circles of equal radius a centered at the vertices of an equilateral triangle of side a. Drill, made on the basis of the triangle Reuleaux, allows drill square holes (with the inaccuracy of 2%).
6. In the Russian mathematical literature the zero is not a natural number, and in the west, on the contrary, belongs to the set of natural numbers.
7. American mathematician George Dantzig, a graduate student of the university, once late for a lesson and has written on the board of the equation for homework. It struck him harder than usual, but after a few days he was able to do it. It turned out that he had decided two "unsolvable" problems in the statistics on which many scientists have struggled.
8. The sum of all numbers on a roulette in a casino is equal to the number of the devil - 666.
9. Sofia Kovalevskaya became acquainted with mathematics in early childhood, when it was not enough room wallpaper, which instead were glued sheets lectures Ostrogradskii of differential and integral calculus.
10. In Indiana in 1897, was released bill, the legislation establishing the value of pi equal to 3.2. This bill does not become law by the timely intervention of a university professor.
1. The English mathematician Abraham de Moivre in old age, once discovered that the duration of his dream growing up to 15 minutes a day. Having made an arithmetic progression, he set a date when it would have reached 24 hours - 27 November 1754. On that day he died.
2. Religious Jews are trying to avoid at all Christian symbols and signs, similar to the cross. For example, the students some Israeli schools instead of the "plus" sign written, echoing the inverted "T".
3. Euro banknotes authenticity can be verified by its serial number and a letter of eleven digits. You need to replace the letter on its serial number in the English alphabet, add this number to the others, then add the numbers the result, until we get a single digit. If this number - 8, the note is genuine. Another way to check is like folding the figures, but without the letter. The result of one letter and number should correspond to a particular country, as the euro printed in different countries. For example, for Germany it is X2.
4. Some people believe that Alfred Nobel did not include math in your premium list of disciplines because of the fact that his wife betrayed him with a mathematician. In fact, Nobel was never married. The real reason for ignoring the Nobel of mathematics is not known, but there are a few suggestions. For example, at that time had already existed Prize in mathematics from the Swedish king. Others - Mathematics does not make important inventions for humanity, because this science is purely theoretical.
5. Reuleaux triangle - is a geometric figure formed by the intersection of three circles of equal radius a centered at the vertices of an equilateral triangle of side a. Drill, made on the basis of the triangle Reuleaux, allows drill square holes (with the inaccuracy of 2%).
6. In the Russian mathematical literature the zero is not a natural number, and in the west, on the contrary, belongs to the set of natural numbers.
7. American mathematician George Dantzig, a graduate student of the university, once late for a lesson and has written on the board of the equation for homework. It struck him harder than usual, but after a few days he was able to do it. It turned out that he had decided two "unsolvable" problems in the statistics on which many scientists have struggled.
8. The sum of all numbers on a roulette in a casino is equal to the number of the devil - 666.
9. Sofia Kovalevskaya became acquainted with mathematics in early childhood, when it was not enough room wallpaper, which instead were glued sheets lectures Ostrogradskii of differential and integral calculus.
10. In Indiana in 1897, was released bill, the legislation establishing the value of pi equal to 3.2. This bill does not become law by the timely intervention of a university professor.
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