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Independent researcher of the megalithic and resident in Plouharnel, near Carnac, for many decades. Crowhurst runs a megalithic museum near to his home. His work on nearby megaliths began in a local association (AAK) for megalithic studies which published many magazines using a multi-cultural methodology from around the ancient world to resolve the unique forms presented by megalithic monuments and especially unique engraved stones of Gavrinis. Crowhurst continued his own interests after the group's dissolution, taking forward some of its ideas and conducting tours, under the auspices of ACEM, a new local study group.

Historical Note

The AAK found that sites around Carnac could be understood using multiple squares, whose diagonals coincided with lunar and solar maxima on the horizon, at that latitude, but the diagonal angles of these squares nest so enabling then to be stacked (in the angular sense) over a small selection of (at least) 1, 2, 3, 4, 7, 13 multiple squares. Robin Heath's "lunation triangle" is half of a four-square triangle, thus linking time models since also the triple square approximates the eclipse year to solar and solar to 13 lunar month year. A third factor was my linking of time-factored triangles to day-inch counting, which appears to have been innovated by Carnac's megalith builders (in the absence of any other evidence earlier than 4500-4000BCE). Crowhurst's continuation and development of AAK's work by Crowhurst has enabled the metrology of the later megalithic, in the British Isles, to be better understood as to its origins in the inch, foot and megalithic yard which is naturally generated by the four-square geometry.

in Print

Megalithes (In French) (2007) out of print

Carnac, The Alignments (2011)

The use of multiple squares for sacred architecture is clear in Egyptian Pharaonic grids, Indian temple building, Greek temple design and the Gothic; Carnac, The Alignments (2011) uses multiple squares as a landscape surveying technique forms an interesting guide also to Carnac's Alignments and their many surrounding megalithic structures. You can view a 2004 film made of a DuVersity tour facilitated by Howard in 2004, focussed on the chambered tomb of Gavrinis and Locmariaqer complex.

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You can view a 2004 film made of a DuVersity tour facilitated by Howard in 2004, focussed on the chambered tomb of Gavrinis.