{"product_id":"beatrix-acoustic-beats-pixel-sticker","title":"Beatrix – Acoustic Beats Physics Sticker","description":"\u003cp\u003eMeet Beatrix, who hears two tones as one wobble: two tones with slightly different pitch drift in and out of step, so the loudness wobbles at the difference frequency, fbeat = |f₁ − f₂|. Musicians use this to tune. Pixel-art kiss-cut sticker in 2, 3, 4 and 6 inches; equation, symbols and sources in the physics panel below.\u003c\/p\u003e","brand":"Printify","offers":[{"title":"2\" × 2\" \/ White","offer_id":50656403783783,"sku":"10511779928763614159","price":4.99,"currency_code":"USD","in_stock":true},{"title":"3\" × 3\" \/ White","offer_id":50656403816551,"sku":"99895893828407462237","price":6.99,"currency_code":"USD","in_stock":true},{"title":"4\" × 4\" \/ White","offer_id":50656403849319,"sku":"29913132185010568757","price":8.99,"currency_code":"USD","in_stock":true},{"title":"6\" × 6\" \/ White","offer_id":50656403882087,"sku":"62860266139938059836","price":11.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0596\/8746\/9159\/files\/01_clean_84314186-629a-48fb-9392-d3be710bf777.jpg?v=1792784692","url":"https:\/\/pixelatedphysics.com\/products\/beatrix-acoustic-beats-pixel-sticker","provider":"Pixelated Physics","version":"1.0","type":"link"}