Monday, November 06, 2006

Time, Space and the Dao

I’m currently doing an informal peer review of a book entitled ‘Time, Space and the Dao’, written by my friend and colleague Roisin Golding. It’s a scrupulously well-researched explication of the astronomy and calendrical systems behind the ‘Stems and Branches’ approach to acupuncture.

It also contains some fascinating facts of general interest. Did you know that…

In the northern hemisphere the waxing moon is a right crescent and the waning moon a left crescent, and in the southern hemisphere it’s the other way around. At the equator the two points of the crescent moon face upwards, whether waxing or waning.

The length of time between the autumn equinox and spring equinox (presumably in the Northern Hemisphere) is 179 days, whereas the length of time between the spring equinox and autumn equinox is 186 days. This is because the earth moves more slowly during the summer months when it is further from the Sun (aphelion approx 4th July).

Cool, huh?

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