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Playing Cards

The common pack of playing cards first appeared in Europe in the late 1300s, and seems to have astronomical connections:

- it is evenly divided into red and black cards, analogous to day and night
- 52 cards correspond to the 52 weeks in the year
- the year has four seasons, and the pack has four suits
- there are 13 cards per suit, and 13 lunar cycles per year
- when you add all the points per card (with jack = 11, queen = 12, king = 13, ), and give the joker the value of 1 - the total is 365, the number of days in the year

From: Mysterious Stranger by David Blaine, p44


Solargraphy, Birmingham, 21-12-07 to 21-06-08

 


Solargraphy, Milton Keynes, 21-12-07 to 21-06-08

 

 
From: http://xkcd.com/