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Boscawen-Ûn: Bronze Age Harpedonaptai in Cornwall

-22% su kodu: BOOKS
76,95 
Įprasta kaina: 98,65 
-22% su kodu: BOOKS
Kupono kodas: BOOKS
Akcija baigiasi: 2025-03-09
-22% su kodu: BOOKS
76,95 
Įprasta kaina: 98,65 
-22% su kodu: BOOKS
Kupono kodas: BOOKS
Akcija baigiasi: 2025-03-09
-22% su kodu: BOOKS
2025-02-28 76.95 InStock
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Knygos aprašymas

Mathematician and essayist James Warren looks at the Cornish megalithic stone circle Boscawen-Ûn, nineteen granite or quartz menhirs arranged in a rough oval, with a single sloping stone in their midst. The monument was possibly laid-out in Chalcolithic times for unknown reasons. James Warren measures the layout from an aerial photograph. The plan is not circular and the author demonstrates that the whole array and indeed any choice of three or more component stones cannot mathematically lie on an arc of a circle. The author shows that the stone circuit is plausibly comprised of four elliptical arcs and that these were likely generated by dragging a taut loop of rope or chain around four posts driven at the corners of a square.

Informacija

Autorius: James R Warren
Leidėjas: Midland Tutorial Productions
Išleidimo metai: 2023
Knygos puslapių skaičius: 152
ISBN-10: 1915750075
ISBN-13: 9781915750075
Formatas: 260 x 183 x 15 mm. Knyga kietu viršeliu
Kalba: Anglų

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