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Trethevy Quoit has some amazing optical dynamics - this effect of the capstone aperture only happens at the Equinoxes, when the Sun can be seen through the extr...
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Trethevy Quoit has some amazing optical dynamics - this effect of the capstone aperture only happens at the Equinoxes, when the Sun can be seen through the extremely accurately worked upper and lower lips of the hole just before extinction occurs at about 100m down the hill!
Archeoastronomy is all about finding the right places from which to observe intentionally aligned celestial phenomena! ;)
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Archeoastronomy is all about finding the right places from which to observe intentionally aligned celestial phenomena! ;)
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