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Barbury Castle Pi

Near Wroughton, Wiltshire

A spiral below a hillfort that turned out to spell the number pi.

In June 2008 a spiral of ten segments appeared in a field below the Iron Age hillfort of Barbury Castle. An astrophysicist pointed out that the jumps between segments spelled out the number pi to nine decimal places: 3.

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When
June 2008
Where
51.4850, -1.7870
Group
Crop circles

Visiting

Barbury Castle Country Park has a car park, and the Ridgeway runs right past.

Cover of UFO Cases of Britain by Cale Mills
Read the full story in the book

UFO Cases of Britain

Fifty-four real and closely examined British UFO cases, weighed with honesty rather than hype. From Rendlesham Forest, the best-documented UFO case the United Kingdom has ever produced, to the Berwyn Mountains, the Broad Haven schoolchildren, the Calvine photograph and the Bonnybridge hotspot, each case sets out what was seen, who saw it and what the explanations are.

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