趣談英語：愛因斯坦誕生于圓周率日-Einstein Was Born On Pi Day

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pi (∏): the circumference of a circle divided by its diameter

ratio: the relationship between two amounts

circumference: the distance around an edge of a circular shape

diameter: the line across the centre of a circle

coincidentally: by chance

theory of relativity: Einstein’s idea that the way that anything (besides light) moves is dependent on the relative movement of the observer

Einstein Was Born On Pi Day-愛因斯坦誕生于圓周率日

Pi Day is celebrated on March 14 (3.14), the closest calendar date to the mathematical number “pi”. Pi, named after a Greek letter (∏), is the ratio of a circle’s circumference divided by its diameter. While the exact value of pi is impossible to determine because it goes on indefinitely without making a pattern, it is typically written as 3.14. Some math and science enthusiasts celebrate Pi Day with pie-eating contests, while others enjoy pizza (pie) parties! Pi Day originated at a museum in San Francisco in 1988. Coincidentally, March 14 is also Albert Einstein’s birthday. Einstein was a mathematician and physicist who became famous for his theory of relativity.