{"product_id":"thermican-the-slow-bolometer-monk-mug","title":"Thermican, the Slow Bolometer Monk Mug","description":"\u003cp\u003eA bolometer with heat capacity C and thermal link G has time constant τ = C\/G; it warms and cools exponentially with τ, just like Newton's law of cooling: ΔT = ΔT\u003csub\u003e0\u003c\/sub\u003e e\u003csup\u003e−t\/τ\u003c\/sup\u003e, where ΔT is the temperature difference to the room, ΔT\u003csub\u003e0\u003c\/sub\u003e its initial value, t the time and τ the time constant.\u003c\/p\u003e\n\u003cp\u003eThe joke: Bolometer people tune C and G; the time constant is literally slowness by design. The slogan on the mug reads \u003cstrong\u003eτ = C\/G. SLOW TO WARM, SLOW TO FORGIVE.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSource: P. L. Richards, J. Appl. Phys. 76, 1 (1994).\u003c\/p\u003e","brand":"Printify","offers":[{"title":"11oz","offer_id":50976117129319,"sku":"29610133632871224252","price":21.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0596\/8746\/9159\/files\/3031414537938529727_2048.jpg?v=1793685788","url":"https:\/\/pixelatedphysics.com\/nl\/products\/thermican-the-slow-bolometer-monk-mug","provider":"Pixelated Physics","version":"1.0","type":"link"}