{ "item_title" : "Duplicate Image at Moonset", "item_author" : [" Peter D. Geldart "], "item_description" : "Observations were made over a great lake with a clear view to the horizon of moonsets that displayed a duplicate image below. This is known as an Etruscan Vase or an Omega effect because of the shape. Three causes of the inferior image are considered: refraction, reflection, or gravitation.Since the phenomenon is only seen from a low vantage point looking over a level surface to a clear horizon it underscores the importance of the observer's position.", "item_img_path" : "https://covers4.booksamillion.com/covers/bam/9/79/827/801/9798278014195_b.jpg", "price_data" : { "retail_price" : "14.00", "online_price" : "14.00", "our_price" : "14.00", "club_price" : "14.00", "savings_pct" : "0", "savings_amt" : "0.00", "club_savings_pct" : "0", "club_savings_amt" : "0.00", "discount_pct" : "10", "store_price" : "" } }

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