12 marzo 2015
If you like numbers, you will love March 14, 2015. When written as a numerical date, it’s 3/14/15, corresponding to the first five digits of pi (3.1415) — a once-in-a-century coincidence! Pi Day, which would have been the 136th birthday of Albert Einstein, is a great excuse to eat pie, and to appreciate how important the number pi is to math and science.
http://feeds.sciencedaily.com/~r/sciencedaily/~3/lVnquW3mfuM/150312111112.htm
