Saturday, October 16, 2010

It is...

...an astrolabe.
This instrument was used in astronomy and navigation in ancient and medieval times, which meant it was used in astrology. How did astrology relate to medicine?
A horoscope "predicted" illness and also helped physicians and surgeons of the time to properly schedule procedures--bloodletting, amputations, administration of medicines, and other mayhem-- based on the portents in the planets, moon, and stars. No matter the portents, there was no anesthesia, and most of the treatments were ineffective if not downright dangerous or toxic, which made the timing of a procedure pretty much irrelevant unless the chart advised not getting it at all.

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