{ "item_title" : "天", "item_author" : [" ঌ 盖尔达特", "Google Translate "], "item_description" : "巨大的天穹象征着地球引力阱中的弯曲空间。作者探讨了如何通过公式计算与实际观测来测定地平线的距离，并指出地球的半径和质量都可能是其中的影响因素。The great dome of the sky represents the curved space of the gravitational well of the Earth. The author considers how we measure the distance to the horizon using a formula vs actual observation. Both the radius and the mass of the Earth may be factors.", "item_img_path" : "https://covers3.booksamillion.com/covers/bam/1/99/832/141/199832141X_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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