Ancient Computer Discovered

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i09 have posted a rather interesting article about the true purposes of the Antikythera mechanism, a device discovered over a century ago.

New visual imaging techniques have revealed what scientists propose is the true function of the device: an extremely advanced piece of astronomical and calendar-keeping technology.

The findings, published in Nature, are probably best described as "mind blowing." Devices with this level of complexity were not seen again for almost 1,500 years, and the Antikythera mechanism’s compactness actually bests the later designs. Probably built around 150 B.C., the Antikythera mechanism can perform a number of functions just by turning a crank on the side.

Using nothing but an ingenious system of gears, the mechanism could be used to predict the month, day and hour of an eclipse, and even accounted for leap years. It could also predict the positions of the sun and moon against the zodiac, and has a gear train that turns a black and white stone to show the moon’s phase on a given date. It is possible that it could also show the astronomical positions of the planets known to the ancients: Mercury, Venus, Mars, Jupiter and Saturn.

The full article can be found here, and is well worth a read.

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