{"product_id":"optical-illusion-pack-book-janet-sacks-9780764166174","title":"The Optical Illusion Pack","description":"Not only is this incredible kit packed with more than 100 mind-boggling illusions, it also explains the science behind them. Kids will love learning how the brain tricks the eye into seeing what may—or may not—actually be there. Sections explore: \u003cul\u003e\n\u003cli\u003e Impossible shapes that appear real but are not \u003c\/li\u003e\n\u003cli\u003e Static objects that seem to move \u003c\/li\u003e\n\u003cli\u003e Camouflage techniques used by animals \u003c\/li\u003e\n\u003cli\u003e The magic behind animation \u003c\/li\u003e\n\u003cli\u003e 3D images, and more\u003c\/li\u003e\n\u003c\/ul\u003eThis fun and unusual pack comes complete with lots of cool accessories to help with the illusions including: 3D glasses, a thaumatrope (for animated illusions), a press-out impossible triangle, plus acetate sheets and spinners for creating vibrating lines and other illusions. A built-in storage pocket secures illusion accessories.","brand":"WoB","offers":[{"title":"GB \/ VERY_GOOD \/ INTERNAL","offer_id":49564844458257,"sku":"GOR008827178","price":10.0,"currency_code":"USD","in_stock":false},{"title":"US \/ VERY_GOOD \/ SBYB","offer_id":50302205100305,"sku":"CIN0764166174VG","price":4.7,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0784\/4072\/6801\/files\/0764166174.jpg?v=1750913770","url":"https:\/\/www.worldofbooks.com\/products\/optical-illusion-pack-book-janet-sacks-9780764166174","provider":"World of Books ","version":"1.0","type":"link"}