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Every year, March 14, enthusiastic mathematicians celebrate Pi “because this date matches the first three digits of pi (3.14 is a mathematical constant that represents ratio of the circumference to its diameter). This year this the event is even more significant, since for the first time in a century will represent the first five digits of Pi (3.14.15). Pi – irrational number, that is, it cannot be expressed as fractions, and its decimal representation is never repeated and never ends. There are many ways to celebrate. Pi Day, however his most ardent fans express their admiration for reading tens of thousands of pi numbers from memory. In 1981 an Indian named Ryan Mahadevan read from memory 31,811 digits of the number Pi. In 1989, Japanese Hideaki Tomoyori broke his record, he read 40,000 digits. And in 2005, a new Guinness Book of World Records the record that went to the Chinese Lu Chao, he read 67890 numbers Pi numbers. It turns out that despite impressive successes, most of these people do not possess extraordinary memory. They just mastered methods for associating a string of numbers with imaginary places or scenes. Palace of memory Experts in memorization pi number combinations often use a method called “palace memory. “This method has been used since the days of the ancient Greeks and Romans. He is to use spatial visualization to remembering information, such as numbers or word lists. Here is how it works: being in a familiar environment, for example, at home, You place pieces of information that you want to remember in different places of the room. For example, the number “717” is in the corner at the entrance doors, the number “919” in the sink, and so on. In order to remember the combinations of numbers in order, all you have to do is it’s just to follow the same path that you followed when choosing “repositories” for information. This effective method allows remember the huge amount of information! Anders Ericsson, professor psychology, studied people who set records in repetition digits of pi to find out how they reached such amazing results. Like most other record holders, Chinese Lu used visualization methods. He designated imaginary images with double-digit combinations of numbers ranging from “00” to “99” and then came up with a story featuring these images. A few years ago Ericsson decided to conduct an experiment involving Lu, as well as groups of people of the same age and level of education. Scientist conducted a test that measured the “digital series” of members experiment. In other words, the test showed how well they can remember a sequence of random digits represented at a rate of one digit per second. According to the study, Lou’s result was slightly above average compared to the rest group members. The results obtained indicate that, in contrast from some other memory experts that have been studied, Lu’s mastery of remembering long lists of numbers was not the result of an innate gift in coding information. Rather it is was the result of many years of practice. Want to know fun facts about pi?
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