{"product_id":"penrose-ladder-black","title":"Penrose Ladder — Black","description":"In 1958, mathematician Lionel Penrose and his son Roger — who would later win the Nobel Prize in Physics for his work on black holes — published a paper describing a staircase that went up forever and arrived back where it started.\n\nIt was geometrically impossible. Each individual section looked correct. The connections between them created a loop with no exit.\n\nWhen Roger Penrose had first seen M.C. Escher's impossible figures a few years earlier, he had been completely captivated. He and his father sent a copy of their paper to Escher. Escher wrote back. He had just made a lithograph inspired by the staircase — Ascending and Descending, 1960 — monks walking endlessly up and endlessly down, going nowhere forever.\n\nWhat the Penroses formalized and what Escher made visible was the same idea: that the rules that govern individual parts of a system can produce, collectively, something that cannot exist.","brand":"White Nights","offers":[{"title":"Black \/ S","offer_id":49784836194531,"sku":"WHITENIGHTS_PLB57811_RNHS-BL-S","price":799.0,"currency_code":"INR","in_stock":true},{"title":"Black \/ M","offer_id":49784836227299,"sku":"WHITENIGHTS_PLB57811_RNHS-BL-M","price":799.0,"currency_code":"INR","in_stock":true},{"title":"Black \/ L","offer_id":49784836260067,"sku":"WHITENIGHTS_PLB57811_RNHS-BL-L","price":799.0,"currency_code":"INR","in_stock":true},{"title":"Black \/ XL","offer_id":49784836292835,"sku":"WHITENIGHTS_PLB57811_RNHS-BL-XL","price":799.0,"currency_code":"INR","in_stock":true},{"title":"Black \/ XXL","offer_id":49784836325603,"sku":"WHITENIGHTS_PLB57811_RNHS-BL-XXL","price":799.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0804\/9062\/7299\/files\/017892309756aa57f7f51f5b1wn-penrose-ladder-black_mockup.png?v=1789992143","url":"https:\/\/whitenights.store\/products\/penrose-ladder-black","provider":"White Nights","version":"1.0","type":"link"}