Stonehenge math
May 1, 2007 6:25 PM   Subscribe

Solstice/equinox calculations Been hankering to build your own Stonehenge but got stumped at the planning stage? Paul Doherty shows you the math to construct a modern ancient observatory with angles and facings correct for your latitude.
posted by Mitheral (5 comments total) 6 users marked this as a favorite
There's a replica of the inner circle of Stonehenge in Washington State along the Columbia River. It's known locally as "Concretehenge" because of the material used to create it. It's a memorial to WWI dead.

They didn't get it right when they built it, so it doesn't work to predict eclipses the way the real one does.
posted by Steven C. Den Beste at 6:35 PM on May 1, 2007

If you are in the vicinity of Boston, there's also MIThenge.
posted by DU at 6:42 PM on May 1, 2007

Just make sure you know the difference between feet and inches.

"I do not, for one, think that the problem was that the band was down. I think that the problem may have been that there was a Stonehenge monument on the stage that was in danger of being crushed by a dwarf. All right? That tended to understate the hugeness of the object."
posted by Horace Rumpole at 7:28 PM on May 1, 2007 [1 favorite]

Stonehenge Aotearoa
posted by homunculus at 7:29 PM on May 1, 2007

I was given this napkin ...
posted by Koko at 10:49 AM on May 2, 2007

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