{"product_id":"boundraith-the-mismatched-border-wraith-mug","title":"Boundraith, the Mismatched Border Wraith Mug","description":"\u003cp\u003eKapitza resistance: heat crossing a solid–liquid-helium boundary meets a thermal boundary resistance R\u003csub\u003eK\u003c\/sub\u003e ∝ T⁻³ (acoustic mismatch).\u003c\/p\u003e\n\u003cp\u003eThe joke: Phonons mismatch at interfaces; cryo people sinter silver to fight it. Distinct from KAPITZADIRAC (live sticker). The slogan on the mug reads \u003cstrong\u003eEVEN HEAT HESITATES AT THE BOUNDARY.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSource: P. L. Kapitza, J. Phys. USSR 4, 181 (1941); G. L. Pollack, Rev. Mod. Phys. 41, 48 (1969).\u003c\/p\u003e","brand":"Printify","offers":[{"title":"11oz","offer_id":50976126107751,"sku":"18166083485676983818","price":21.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0596\/8746\/9159\/files\/14697270598430451824_2048.jpg?v=1793683570","url":"https:\/\/pixelatedphysics.com\/fr\/products\/boundraith-the-mismatched-border-wraith-mug","provider":"Pixelated Physics","version":"1.0","type":"link"}