{"product_id":"ringward-the-high-q-bellkeeper-mug","title":"Ringward, the High-Q Bellkeeper Mug","description":"\u003cp\u003eQuality factor Q = ω₀\/Δω; a resonator's stored energy rings down as e\u003csup\u003e−ω₀t\/Q\u003c\/sup\u003e, so high-Q rings for many cycles.\u003c\/p\u003e\n\u003cp\u003eThe joke: High-Q resonators ring long after excitation, like the embarrassment of your question. The slogan on the mug reads \u003cstrong\u003eHIGH Q. STILL RINGING FROM THAT QUESTION.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSource: A. P. French, Vibrations and Waves (Norton, 1971), chs. 3–4.\u003c\/p\u003e","brand":"Printify","offers":[{"title":"11oz","offer_id":50980965515367,"sku":"47518874449816049996","price":21.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0596\/8746\/9159\/files\/10097986192889372829_2048.jpg?v=1793686245","url":"https:\/\/pixelatedphysics.com\/tr\/products\/ringward-the-high-q-bellkeeper-mug","provider":"Pixelated Physics","version":"1.0","type":"link"}