What are A few Facts about Pi?
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1. The symbol for pi (π) began to be used 250 years ago.
2. The symbol of Pi was introduced by William Jones in 1706. But it was made popular by Leonhard Euler in 1737.
3. Pi is an irrational number. Its digits continue infinitely in a random sequence. So we cannot estimate the precise value of pi.
4. Even computers cannot calculate the exact value of pi. Calculation of the value of pi is used as "Stress Test" for computers.
5. A Japanese scientist found 1.24 trillion digits of Pi using a Hitachi SR 8000 computer, breaking all the previous records.
6. Pi is also known as the “circular constant,” “Archimedes’ constant,” or “Ludolph’s number."
7. There are no zeroes in the first 31 digits of Pi.
8. Every year, March 14 (written as 3. 14) is celebrated as "Pi Day", because the day represents 3.14 - the value of pi.
9. Pi is the ratio of the circumference of a circle to its diameter.
10. Humans have been studying Pi since 4000 years ago.
2. The symbol of Pi was introduced by William Jones in 1706. But it was made popular by Leonhard Euler in 1737.
3. Pi is an irrational number. Its digits continue infinitely in a random sequence. So we cannot estimate the precise value of pi.
4. Even computers cannot calculate the exact value of pi. Calculation of the value of pi is used as "Stress Test" for computers.
5. A Japanese scientist found 1.24 trillion digits of Pi using a Hitachi SR 8000 computer, breaking all the previous records.
6. Pi is also known as the “circular constant,” “Archimedes’ constant,” or “Ludolph’s number."
7. There are no zeroes in the first 31 digits of Pi.
8. Every year, March 14 (written as 3. 14) is celebrated as "Pi Day", because the day represents 3.14 - the value of pi.
9. Pi is the ratio of the circumference of a circle to its diameter.
10. Humans have been studying Pi since 4000 years ago.
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A battery is a device consisting of one or more electrochemical cells with external connections for powering electrical devices such as flashlights, mobile phones, and electric cars. When a battery is supplying electric power, its positive terminal is the cathode and its negative terminal is the anode.
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