Title
Gears from the Greeks: The Antikythera Mechanism A Calendar Computer from ca. 80 B.C., Transactions, American Philosophical S,Used
Delivery time: 8-12 business days (International)
Contents: Discovery of the Antikythera shipwreck; Discovery of and research on the mechanism fragments, 190273; The casing, general construction, and dial work; The arrangement of the plates and components of the mechanism; The door plates and orientation and use of the mechanism; The accuracy of gear teeth numbers; Description of individual gears and gear trains; The inscriptions; The Antikythera mechanism as an historical document; The early history of gearing and clockwork; and The invention of complicated clockwork and the differential gear. App.: Composition of the metal fragments (contrib. by Earle Caley and Cyril Smith); and Tech. note on radiography of fragments. Illus.
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Shipping & Returns
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We ship your order within 2–3 business days for USA deliveries and 5–8 business days for international shipments. Once your package has been dispatched from our warehouse, you'll receive an email confirmation with a tracking number, allowing you to track the status of your delivery.
Returns
To facilitate a smooth return process, a Return Authorization (RA) Number is required for all returns. Returns without a valid RA number will be declined and may incur additional fees. You can request an RA number within 15 days of the original delivery date. For more details, please refer to our Return & Refund Policy page.
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Warranty
We provide a 2-year limited warranty, from the date of purchase for all our products.
If you believe you have received a defective product, or are experiencing any problems with your product, please contact us.
This warranty strictly does not cover damages that arose from negligence, misuse, wear and tear, or not in accordance with product instructions (dropping the product, etc.).
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