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# Danny Silk - Math of the Maya and the end of the world

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Danny Silk describes Mayan base-20 mathematics and how that results in the end of the last day of history being December 12, 2012.

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### Danny Silk - Math of the Maya and the end of the world

1. 1. Danny SilkMath of the Maya
2. 2. Goals for the ! Next 6 Minutes!| + | = ?!What is today’s date?!2013 = Myth or Reality?!
3. 3. Who Are the Maya, Anyway?!
4. 4. MATH! POINTS:! "ZEROES ARE IN! SO ARE ONES AND FIVES! AND TWENTIES! AND VERTICAL ALIGNMENTS! "...USUALLY!
5. 5. The “Ones” Place! 2 + 2 = 4 + =!
6. 6. | + | = ?! 5 + 5 =10!20!?!
7. 7. Base 10 Base 20!(Decimal) (Vigesimal)! 1,000,00 64,000,000!0 100,000 3,200,000! 10,000 160,000! 1,000! 8,000! 100! 400! 10! 20! 1! 1!
8. 8. 1! 400! 20! 6!20 5!20 4!20 3!20 2!20 1!20 0!20
9. 9. 1! 400! 160k! 64M! 20! 8k! 3.2M! 6!20 5!20 4!20 3!20 2!20 1!20 0!20
10. 10. 2 x 400!0 X 20 5 x 1!805
11. 11. The Calendar System! There are three!Tzolk’in: 260 days ! Long Count!(20 days x 13 Haab: 365 days (Long story)!months)! deterined byUsed in order to solar cycle!plan rituals!
12. 12. Calendar Round!Tzolk’in = 260 days !Haab = 365 days! Takes about 52 years to repeat! (No world-ending consequences.)!
13. 13. Calendar Round!The Calendar Round date is determined by 4 factors:!1) A cycle of 13 numbers, as part of the tzolk’in!2) A cycle of 20 day names, as part of the tzolk’in!3) A cycle of 18 months + a 5 day TODAY:! addition, as part of the haab!4) A cycle of 20 numbers (0-19), as Tzolkin: 8 Ik ! part of the haab! Haab: 10 Yak!
14. 14. Long Count!20 K’ins (day) "= 1 Winal!18 Winal " "= 1 Tun (360 days)!20 Tun " "= 1 Ka’Tun (‘decade’)!20 Ka’Tun "= 1 Baktun (‘century’)!20 Baktun "= 1 Pictun!20 Pictun "= 1 Calabtun!20 Calabtun "= 1 Kinchiltun!20 kinchiltun "= 1 Analtun (64 millionyears) Today’s Long Count: 12.19.18.14.2!
15. 15. So what’s the deal with 2012,anyway?! One number to blame:! 13.0.0.0.0!
16. 16. Last Great Cycle!Last Great Cycle: 13 August 3114 BC !Great Cycle last 13 baktuns-! " " " " or 5,125.36 years.!December 21, 2012: 13.0.0.0.0!
17. 17. Michael D. Coe
18. 18. WHEN IS THIS !EVER RELEVANT?!
19. 19. 5 x 400 = 2000! 0 x 20 = 0!12 x 1 = 12
20. 20. Thank You!Danny Silk