Welcome to the 12th edition of Math and Multimedia blog carnival. Yes, you get a dozen posts this time. Before we do that let’s look at some trivia about the number 12.
The number 12 is strongly associated with the heavens – 12 months, the 12 signs of the zodiac, the 12 stations of the Sun and the Moon. The ancients recognized 12 main northern stars and 12 main southern stars. There are 24=12×2 hours in the day, of which 12 are in daytime and 12 in nighttime.
In mathematics, twelve as we all know is a composite number and the smallest number with exactly six divisors, its proper divisors being 1, 2, 3, 4, 6 and 12. Twelve is also a highly composite number, the next one being24. It is the first composite number of the form p2q; a square-prime, and also the first member of the (p2) family in this form. 12 has an aliquot sum of 16 (133% in abundance). Continue reading “Math and Multimedia Blog Carnival #12”