{"title":"物理マグカップ","description":"\u003cp\u003e物理法則をピクセルアートのキャラクターとして描いた、11 oz と 15 oz のブラックのセラミックマグカップ。どのマグカップもキャラクターとその方程式、そして一行ジョークの組み合わせ。プランクの法則からヒッグス機構まで。各商品ページには、記号の解説と確認できる出典を載せた物理パネルがあります。\u003c\/p\u003e","products":[{"product_id":"turbulorn-the-seeing-wraith-mug","title":"Turbulorn, the Seeing Wraith Mug","description":"\u003cp\u003eFried parameter r₀ ∝ λ\u003csup\u003e6\/5\u003c\/sup\u003e: seeing improves at longer wavelengths.\u003c\/p\u003e\n\u003cp\u003eThe joke: Observers switch to infrared when seeing is poor. The slogan on the mug reads \u003cstrong\u003eBAD SEEING? GO REDDER.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSource: D. L. Fried, J. Opt. Soc. Am. 56, 1372 (1966).\u003c\/p\u003e","brand":"Printify","offers":[{"title":"11oz","offer_id":50974911987815,"sku":"12062749849222645039","price":21.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0596\/8746\/9159\/files\/5764488358980926615_2048.jpg?v=1793684190"},{"product_id":"flickermoth-the-pink-noise-moth-queen-mug","title":"Flickermoth, the Pink-Noise Moth Queen Mug","description":"\u003cp\u003eFlicker (1\/f) noise: spectral density S(f) ∝ 1\/f\u003csup\u003eα\u003c\/sup\u003e with α ≈ 1. When the fluctuating quantity is fractional frequency y (flicker FM, S\u003csub\u003ey\u003c\/sub\u003e(f) ∝ 1\/f), the Allan deviation stops falling and flattens into a floor, σ\u003csub\u003ey\u003c\/sub\u003e(τ) = const, so averaging longer stops helping; for white FM it falls as τ\u003csup\u003e−1\/2\u003c\/sup\u003e.\u003c\/p\u003e\n\u003cp\u003eThe joke: With white noise σ falls as 1\/√τ; with 1\/f it plateaus, so the extra 6 hours of averaging bought nothing. The slogan on the mug reads \u003cstrong\u003eAVERAGING LONGER. REGRETTING LONGER.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSource: J. B. Johnson, Phys. Rev. 26, 71 (1925) (low-frequency 'flicker effect'); D. W. Allan, Proc. IEEE 54, 221 (1966).\u003c\/p\u003e","brand":"Printify","offers":[{"title":"11oz","offer_id":50976049692775,"sku":"21724511975243205581","price":21.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0596\/8746\/9159\/files\/16176038747523234160_2048.jpg?v=1793683500"},{"product_id":"cryoselle-abbess-of-the-twenty-millikelvin-mug","title":"Cryoselle, Abbess of the Twenty Millikelvin Mug","description":"\u003cp\u003eMean thermal photon number n̄ = 1\/(e\u003csup\u003ehf\/kT\u003c\/sup\u003e − 1). For a 5 GHz qubit mode at 20 mK, hf\/kT ≈ 12, so n̄ ≈ 6 × 10⁻⁶: the mode is almost always empty.\u003c\/p\u003e\n\u003cp\u003eThe joke: Only someone who has thermalised a qubit knows that 'quiet' means hf\/kT ≫ 1, not turning off the radio. The slogan on the mug reads \u003cstrong\u003ehf ≫ kT. FINALLY, SILENCE.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSource: M. Planck, Ann. Phys. 309, 553 (1901); S. N. Bose, Z. Phys. 26, 178 (1924). Value computed with exact SI h = 6.62607015×10⁻³⁴ J s and k = 1.380649×10⁻²³ J\/K (CODATA 2022).\u003c\/p\u003e","brand":"Printify","offers":[{"title":"11oz","offer_id":50976066437223,"sku":"83894615196601421220","price":21.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0596\/8746\/9159\/files\/8943168521930095667_2048.jpg?v=1793683508"},{"product_id":"pelletine-the-grain-counting-clerk-mug","title":"Pelletine, the Grain-Counting Clerk Mug","description":"\u003cp\u003eShot noise: current made of discrete charges fluctuates with spectral density S\u003csub\u003eI\u003c\/sub\u003e = 2qI. Its size reveals the charge of the carrier.\u003c\/p\u003e\n\u003cp\u003eThe joke: Shot noise exists only because e is not zero; physicists measure fractional charge (e\/3) this way. The slogan on the mug reads \u003cstrong\u003eCHARGE COMES IN LUMPS. SO DOES PROGRESS.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSource: W. Schottky, Ann. Phys. 362, 541 (1918).\u003c\/p\u003e","brand":"Printify","offers":[{"title":"11oz","offer_id":50976074956903,"sku":"18348797074999545692","price":21.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0596\/8746\/9159\/files\/7914315940246685353_2048.jpg?v=1793683515"},{"product_id":"waistwyn-the-gaussian-archer-mug","title":"Waistwyn, the Gaussian Archer Mug","description":"\u003cp\u003eA Gaussian beam stays near-focused only within the Rayleigh range z\u003csub\u003eR\u003c\/sub\u003e = πw₀²\/λ; at z = z\u003csub\u003eR\u003c\/sub\u003e its radius has grown by √2.\u003c\/p\u003e\n\u003cp\u003eThe joke: Every optics student knows focus is not forever: tighter waists diverge faster. The slogan on the mug reads \u003cstrong\u003eFOCUSED FOR ONE RAYLEIGH RANGE.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSource: H. Kogelnik \u0026amp; T. Li, Appl. Opt. 5, 1550 (1966).\u003c\/p\u003e","brand":"Printify","offers":[{"title":"11oz","offer_id":50976083509351,"sku":"10548423181095494174","price":21.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0596\/8746\/9159\/files\/552278901488293890_2048.jpg?v=1793683524"},{"product_id":"asymptor-the-last-step-knight-mug","title":"Asymptor, the Last-Step Knight Mug","description":"\u003cp\u003eUnattainability form of the third law: absolute zero cannot be reached in a finite number of steps (finite time and resources).\u003c\/p\u003e\n\u003cp\u003eThe joke: The joke is the theorem: every cooling cycle helps less, forever. The slogan on the mug reads \u003cstrong\u003eZERO KELVIN: ALWAYS ONE MORE STEP.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSource: W. Nernst, Sitzungsber. Preuss. Akad. Wiss. 1912, 134; L. Masanes \u0026amp; J. Oppenheim, Nat. Commun. 8, 14538 (2017).\u003c\/p\u003e","brand":"Printify","offers":[{"title":"11oz","offer_id":50976100319335,"sku":"26087373047740495844","price":21.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0596\/8746\/9159\/files\/7288440390700707198_2048.jpg?v=1793683531"},{"product_id":"quenchard-the-superconducting-duke-mug","title":"Quenchard, the Superconducting Duke Mug","description":"\u003cp\u003eA superconducting magnet quenches when a local spot turns normal; Joule heating spreads the normal zone and the stored energy dumps. NbTi: T\u003csub\u003ec\u003c\/sub\u003e ≈ 9.2 K.\u003c\/p\u003e\n\u003cp\u003eThe joke: 'Goes normal' is the insider phrase for losing superconductivity; one hot spot is enough. The slogan on the mug reads \u003cstrong\u003eONE WARM SPOT. EVERYTHING GOES NORMAL.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSource: M. N. Wilson, Superconducting Magnets (Oxford, 1983).\u003c\/p\u003e","brand":"Printify","offers":[{"title":"11oz","offer_id":50976108806247,"sku":"13899411383130328017","price":21.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0596\/8746\/9159\/files\/11783270673406498660_2048.jpg?v=1793683538"},{"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"},{"product_id":"quadrell-the-quadrature-scribe-mug","title":"Quadrell, the Quadrature Scribe Mug","description":"\u003cp\u003eIndependent uncertainties combine in quadrature: σ² = Σ (∂f\/∂x\u003csub\u003ei\u003c\/sub\u003e)² σ\u003csub\u003ei\u003c\/sub\u003e². Correlated ones do not.\u003c\/p\u003e\n\u003cp\u003eThe joke: Independent errors partially cancel; correlated grad-student problems add linearly. The slogan on the mug reads \u003cstrong\u003eERRORS ADD IN QUADRATURE. PROBLEMS DON'T.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSource: JCGM 100:2008 (GUM), §5.1 and §5.2, BIPM.\u003c\/p\u003e","brand":"Printify","offers":[{"title":"11oz","offer_id":50976117358695,"sku":"24435810487184890707","price":21.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0596\/8746\/9159\/files\/16478020148892836555_2048.jpg?v=1793683554"},{"product_id":"radicane-the-square-root-gambler-mug","title":"Radicane, the Square-Root Gambler Mug","description":"\u003cp\u003ePoisson counting: σ\u003csub\u003eN\u003c\/sub\u003e = √N, so relative error is 1\/√N. Halving the error takes four times the counts.\u003c\/p\u003e\n\u003cp\u003eThe joke: The cruelty of 1\/√N: precision is quadratic in suffering. The slogan on the mug reads \u003cstrong\u003eHALF THE ERROR. FOUR TIMES THE NIGHTS.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSource: S.-D. Poisson, Recherches sur la probabilité des jugements (1837); JCGM 100:2008.\u003c\/p\u003e","brand":"Printify","offers":[{"title":"11oz","offer_id":50976117686375,"sku":"33827469817533396046","price":21.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0596\/8746\/9159\/files\/9394580852369924150_2048.jpg?v=1793683562"},{"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"},{"product_id":"tallywick-the-dark-count-lamplighter-mug","title":"Tallywick, the Dark-Count Lamplighter Mug","description":"\u003cp\u003eThermionic emission: J = A T² e\u003csup\u003e−W\/kT\u003c\/sup\u003e (Richardson–Dushman). It is why photomultipliers have dark counts and why they are cooled.\u003c\/p\u003e\n\u003cp\u003eThe joke: Dark counts are thermal electrons leaving the photocathode; cooling suppresses them exponentially. The slogan on the mug reads \u003cstrong\u003eIN THE DARK, SOMETHING STILL CLICKS.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSource: S. Dushman, Phys. Rev. 21, 623 (1923); O. W. Richardson, Nobel Lecture (1929).\u003c\/p\u003e","brand":"Printify","offers":[{"title":"11oz","offer_id":50976134463591,"sku":"28537838076654915845","price":21.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0596\/8746\/9159\/files\/6237891393593939507_2048.jpg?v=1793683578"},{"product_id":"phaselocke-the-lock-in-locksmith-mug","title":"Phaselocke, the Lock-In Locksmith Mug","description":"\u003cp\u003eLock-in detection multiplies the signal by a reference at f\u003csub\u003eref\u003c\/sub\u003e and low-pass filters, recovering a signal buried far below broadband noise.\u003c\/p\u003e\n\u003cp\u003eThe joke: Phase-sensitive detection is the grad student's miracle: SNR from nowhere. The slogan on the mug reads \u003cstrong\u003eBURIED IN NOISE. LOCKED IN ANYWAY.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSource: J. H. Scofield, Am. J. Phys. 62, 129 (1994) ('Frequency-domain description of a lock-in amplifier').\u003c\/p\u003e","brand":"Printify","offers":[{"title":"11oz","offer_id":50976142852199,"sku":"76797459626505541886","price":21.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0596\/8746\/9159\/files\/6967336786051111230_2048.jpg?v=1793683585"},{"product_id":"solitaren-the-mean-free-path-hermit-mug","title":"Solitaren, the Mean-Free-Path Hermit Mug","description":"\u003cp\u003eMean free path λ = k\u003csub\u003eB\u003c\/sub\u003eT\/(√2 π d² p). For air at room temperature, λ ≈ 6.6 × 10⁻³ cm \/(p in mbar), about 66 m at 10⁻⁶ mbar.\u003c\/p\u003e\n\u003cp\u003eThe joke: High vacuum means molecules hit the chamber wall before each other. The slogan on the mug reads \u003cstrong\u003eAT 1E-6 MBAR, MOLECULES GET 66 M ALONE.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSource: K. Jousten (ed.), Handbook of Vacuum Technology (Wiley-VCH, 2016), ch. 3.\u003c\/p\u003e","brand":"Printify","offers":[{"title":"11oz","offer_id":50976151273575,"sku":"18059136623874506160","price":21.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0596\/8746\/9159\/files\/10681729517441662261_2048.jpg?v=1793683592"},{"product_id":"driftgale-the-thermal-drift-wind-spirit-mug","title":"Driftgale, the Thermal-Drift Wind Spirit Mug","description":"\u003cp\u003eAluminium's thermal expansion coefficient is about 23 × 10⁻⁶ K⁻¹, so a 1 m aluminium path grows 23 µm per kelvin, about 36 HeNe wavelengths.\u003c\/p\u003e\n\u003cp\u003eThe joke: Interferometrists know the AC cycling at night shifts fringes by dozens of wavelengths. The slogan on the mug reads \u003cstrong\u003eONE KELVIN. 23 MICRONS. NO FRINGES.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSource: CRC Handbook of Chemistry and Physics, 'Thermal expansion of metals' (α\u003csub\u003eAl\u003c\/sub\u003e ≈ 23.1 × 10⁻⁶ K⁻¹).\u003c\/p\u003e","brand":"Printify","offers":[{"title":"11oz","offer_id":50976159662183,"sku":"32515382629909273480","price":21.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0596\/8746\/9159\/files\/9795688802256000278_2048.jpg?v=1793683601"},{"product_id":"secundar-the-second-referee-mug","title":"Secundar, the Second Referee Mug","description":"\u003cp\u003eGauge freedom: A → A + ∇χ, φ → φ − ∂χ\/∂t leaves E and B unchanged. Gauge transformations change nothing physical.\u003c\/p\u003e\n\u003cp\u003eThe joke: Reviewer 2's requested revisions: lots of work, zero observable difference. The slogan on the mug reads \u003cstrong\u003ePURE GAUGE. NOTHING PHYSICAL CHANGED.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSource: J. D. Jackson, Classical Electrodynamics, 3rd ed. (Wiley, 1999), §6.3; H. Weyl, Z. Phys. 56, 330 (1929).\u003c\/p\u003e","brand":"Printify","offers":[{"title":"11oz","offer_id":50976168476775,"sku":"90929541355815431702","price":21.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0596\/8746\/9159\/files\/13782256405507959175_2048.jpg?v=1793683608"},{"product_id":"secantha-the-setting-target-huntress-mug","title":"Secantha, the Setting-Target Huntress Mug","description":"\u003cp\u003eAirmass X ≈ sec z for zenith angles below about 60°; extinction grows with X.\u003c\/p\u003e\n\u003cp\u003eThe joke: Racing the target as it sets into thicker air. The slogan on the mug reads \u003cstrong\u003eSEC Z RISING. SO IS MY DESPAIR.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSource: F. Kasten \u0026amp; A. T. Young, Appl. Opt. 28, 4735 (1989).\u003c\/p\u003e","brand":"Printify","offers":[{"title":"11oz","offer_id":50976176963687,"sku":"27051988287563684895","price":21.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0596\/8746\/9159\/files\/17872673876759077164_2048.jpg?v=1793683615"},{"product_id":"duskward-the-astronomical-twilight-warden-mug","title":"Duskward, the Astronomical-Twilight Warden Mug","description":"\u003cp\u003eAstronomical twilight ends when the Sun's centre is 18° below the horizon.\u003c\/p\u003e\n\u003cp\u003eThe joke: Observers wait for 18°; civil twilight people are amateurs. The slogan on the mug reads \u003cstrong\u003e18 DEGREES BELOW OR IT DOESN'T COUNT.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSource: U.S. Naval Observatory, 'Rise, Set, and Twilight Definitions'.\u003c\/p\u003e","brand":"Printify","offers":[{"title":"11oz","offer_id":50976185548903,"sku":"33341881713489970740","price":21.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0596\/8746\/9159\/files\/15854507886820274813_2048.jpg?v=1793683623"},{"product_id":"streakwin-the-cosmic-ray-interloper-mug","title":"Streakwin, the Cosmic-Ray Interloper Mug","description":"\u003cp\u003eSea-level muon flux is about 1 per cm² per minute for a horizontal detector; cosmic rays leave streaks on long CCD exposures.\u003c\/p\u003e\n\u003cp\u003eThe joke: Every long exposure needs cosmic-ray rejection. The slogan on the mug reads \u003cstrong\u003eONE PER CM² PER MINUTE. ALL ON MY TARGET.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSource: Particle Data Group, 'Cosmic Rays' review (2022).\u003c\/p\u003e","brand":"Printify","offers":[{"title":"11oz","offer_id":50976194003047,"sku":"25881594550133734782","price":21.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0596\/8746\/9159\/files\/5779814748831149452_2048.jpg?v=1793683631"},{"product_id":"backglowen-the-sky-limited-lantern-mug","title":"Backglowen, the Sky-Limited Lantern Mug","description":"\u003cp\u003eCCD equation: in the sky-limited regime, sky background noise dominates read noise and SNR ∝ √t.\u003c\/p\u003e\n\u003cp\u003eThe joke: Noise from the sky, not the detector: the observer's existential crisis. The slogan on the mug reads \u003cstrong\u003eSKY-LIMITED. EVEN MY NOISE ISN'T MINE.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSource: S. B. Howell, Handbook of CCD Astronomy, 2nd ed. (Cambridge, 2006), §4.4.\u003c\/p\u003e","brand":"Printify","offers":[{"title":"11oz","offer_id":50976202653799,"sku":"71899887392968341481","price":21.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0596\/8746\/9159\/files\/8163049628329021517_2048.jpg?v=1793683639"},{"product_id":"siderelle-the-four-minute-ghost-mug","title":"Siderelle, the Four-Minute Ghost Mug","description":"\u003cp\u003eA sidereal day is about 23 h 56 min 4.09 s, so stars rise about 4 minutes earlier each solar day.\u003c\/p\u003e\n\u003cp\u003eThe joke: Observers' schedules drift with LST. The slogan on the mug reads \u003cstrong\u003eTHE STARS RETURN 4 MINUTES EARLIER. I DON'T.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSource: IERS Conventions (2010), Tech. Note 36; Astronomical Almanac (USNO).\u003c\/p\u003e","brand":"Printify","offers":[{"title":"11oz","offer_id":50976210976871,"sku":"43883048193277431746","price":21.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0596\/8746\/9159\/files\/14934871192771122774_2048.jpg?v=1793683648"},{"product_id":"nimbryn-the-mie-scattering-grey-lady-mug","title":"Nimbryn, the Mie-Scattering Grey Lady Mug","description":"\u003cp\u003eMie scattering by cloud droplets (size ≫ λ) is nearly wavelength-independent, so clouds are white or grey.\u003c\/p\u003e\n\u003cp\u003eThe joke: Clouds block all bands; no filter helps. The slogan on the mug reads \u003cstrong\u003eMIE SCATTERING. NO FILTER SAVES YOU.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSource: G. Mie, Ann. Phys. 330, 377 (1908).\u003c\/p\u003e","brand":"Printify","offers":[{"title":"11oz","offer_id":50976219365479,"sku":"10898935983732070624","price":21.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0596\/8746\/9159\/files\/12426078079003963355_2048.jpg?v=1793683657"},{"product_id":"beaconess-the-laser-star-maker-mug","title":"Beaconess, the Laser-Star Maker Mug","description":"\u003cp\u003eLaser guide stars excite mesospheric sodium at 589 nm at about 90 km altitude.\u003c\/p\u003e\n\u003cp\u003eThe joke: Adaptive optics people literally make their own star. Distinct from the live Sodium Doublet poster. The slogan on the mug reads \u003cstrong\u003eNO STAR? MAKE ONE AT 90 KM.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSource: R. Foy \u0026amp; A. Labeyrie, A\u0026amp;A 152, L29 (1985); W. Happer et al., JOSA A 11, 263 (1994).\u003c\/p\u003e","brand":"Printify","offers":[{"title":"11oz","offer_id":50976227950695,"sku":"25486988023520210026","price":21.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0596\/8746\/9159\/files\/11225640431894278064_2048.jpg?v=1793683664"},{"product_id":"drycrest-the-water-vapour-hermit-mug","title":"Drycrest, the Water-Vapour Hermit Mug","description":"\u003cp\u003eHigh sites are chosen for low precipitable water vapour; in situ TMT site testing gave median PWV of 1.86 mm at Mauna Kea 13N (4050 m) and 1.70 mm at Cerro Tolonchar (4480 m).\u003c\/p\u003e\n\u003cp\u003eThe joke: Mm and submm astronomers know water is the enemy. The slogan on the mug reads \u003cstrong\u003eABOVE THE WATER. NOT ABOVE THE DEADLINE.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSource: A. Otárola et al., PASP 122, 470 (2010).\u003c\/p\u003e","brand":"Printify","offers":[{"title":"11oz","offer_id":50976236404839,"sku":"14517334379793152924","price":21.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0596\/8746\/9159\/files\/36135828398667788_2048.jpg?v=1793683672"},{"product_id":"slithera-the-parallactic-serpent-mug","title":"Slithera, the Parallactic Serpent Mug","description":"\u003cp\u003eAtmospheric differential refraction disperses star images vertically; align the slit along the parallactic angle to avoid losing blue light.\u003c\/p\u003e\n\u003cp\u003eThe joke: Spectroscopists' oldest lesson. The slogan on the mug reads \u003cstrong\u003eSLIT ALONG PARALLACTIC OR LOSE THE BLUE.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSource: A. V. Filippenko, PASP 94, 715 (1982).\u003c\/p\u003e","brand":"Printify","offers":[{"title":"11oz","offer_id":50976244858983,"sku":"26238492429503187753","price":21.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0596\/8746\/9159\/files\/2910856349525488474_2048.jpg?v=1793683679"},{"product_id":"nightglowe-the-airglow-sleepwalker-mug","title":"Nightglowe, the Airglow Sleepwalker Mug","description":"\u003cp\u003eOH airglow (Meinel bands) dominates the near-infrared night-sky background.\u003c\/p\u003e\n\u003cp\u003eThe joke: Near-IR observers know the sky itself is bright. The slogan on the mug reads \u003cstrong\u003eEVEN THE DARK SKY GLOWS.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSource: A. B. Meinel, ApJ 111, 555 (1950).\u003c\/p\u003e","brand":"Printify","offers":[{"title":"11oz","offer_id":50976253411431,"sku":"10589760840267850149","price":21.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0596\/8746\/9159\/files\/14858648316037853008_2048.jpg?v=1793683687"},{"product_id":"twinkelle-the-point-source-dancer-mug","title":"Twinkelle, the Point-Source Dancer Mug","description":"\u003cp\u003eStars scintillate but planets twinkle less because their angular size averages the fluctuations.\u003c\/p\u003e\n\u003cp\u003eThe joke: Size averages scintillation. The slogan on the mug reads \u003cstrong\u003ePOINT SOURCES TWINKLE. EXTENDED ONES COPE.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSource: D. Dravins et al., PASP 109, 173 (1997).\u003c\/p\u003e","brand":"Printify","offers":[{"title":"11oz","offer_id":50976261931111,"sku":"92981461020203354367","price":21.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0596\/8746\/9159\/files\/16792222441071023657_2048.jpg?v=1793683694"},{"product_id":"epochra-the-precession-navigator-mug","title":"Epochra, the Precession Navigator Mug","description":"\u003cp\u003eGeneral precession in longitude is about 50.3″ per year; coordinates must specify the epoch (J2000).\u003c\/p\u003e\n\u003cp\u003eThe joke: Pointing at old coordinates. The slogan on the mug reads \u003cstrong\u003eWRONG EPOCH. WRONG SKY.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSource: N. Capitaine et al., A\u0026amp;A 412, 567 (2003).\u003c\/p\u003e","brand":"Printify","offers":[{"title":"11oz","offer_id":50976262127719,"sku":"27355079249273208906","price":21.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0596\/8746\/9159\/files\/5935759417395964018_2048.jpg?v=1793683702"},{"product_id":"magnidra-the-pogson-scale-keeper-mug","title":"Magnidra, the Pogson Scale Keeper Mug","description":"\u003cp\u003ePogson's magnitude scale: 5 magnitudes equals a factor of 100 in flux.\u003c\/p\u003e\n\u003cp\u003eThe joke: Brighter is smaller; insiders only. The slogan on the mug reads \u003cstrong\u003eFIVE MAGNITUDES. 100 TIMES FAINTER.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSource: N. Pogson, MNRAS 17, 12 (1856).\u003c\/p\u003e","brand":"Printify","offers":[{"title":"11oz","offer_id":50976262553703,"sku":"14928975499797732363","price":21.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0596\/8746\/9159\/files\/965959677541213038_2048.jpg?v=1793683710"},{"product_id":"surgelle-the-full-moon-thief-mug","title":"Surgelle, the Full-Moon Thief Mug","description":"\u003cp\u003eOpposition surge: the Moon brightens sharply near zero phase angle (full moon).\u003c\/p\u003e\n\u003cp\u003eThe joke: Faint-object observers dread full moon. The slogan on the mug reads \u003cstrong\u003eFULL MOON. OPPOSITION SURGE. NO DARK TIME.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSource: B. J. Buratti, J. K. Hillier \u0026amp; M. Wang, Icarus 124, 490 (1996).\u003c\/p\u003e","brand":"Printify","offers":[{"title":"11oz","offer_id":50976271040615,"sku":"29753203224400744784","price":21.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0596\/8746\/9159\/files\/219445011500021976_2048.jpg?v=1793683718"},{"product_id":"chimella-the-hot-chocolate-bell-mug","title":"Chimella, the Hot-Chocolate Bell Mug","description":"\u003cp\u003eHot chocolate effect: tapping pitch rises as bubbles leave, because bubbles lower the sound speed.\u003c\/p\u003e\n\u003cp\u003eThe joke: Rising pitch reveals bubble physics. The slogan on the mug reads \u003cstrong\u003eTAP THE MUG. HEAR THE BUBBLES LEAVE.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSource: F. S. Crawford, Am. J. Phys. 50, 398 (1982).\u003c\/p\u003e","brand":"Printify","offers":[{"title":"11oz","offer_id":50976271335527,"sku":"11404377299115574127","price":21.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0596\/8746\/9159\/files\/17174499427421337795_2048.jpg?v=1793683725"},{"product_id":"nullwen-the-upper-limit-herald-mug","title":"Nullwen, the Upper-Limit Herald Mug","description":"\u003cp\u003eAn upper limit is a result: the Feldman–Cousins unified approach gives confidence intervals that move smoothly from upper limits to two-sided intervals.\u003c\/p\u003e\n\u003cp\u003eThe joke: The null result can be published precisely because the limit is quantified. The slogan on the mug reads \u003cstrong\u003eNOTHING FOUND. 90% CONFIDENT.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSource: G. J. Feldman \u0026amp; R. D. Cousins, Phys. Rev. D 57, 3873 (1998).\u003c\/p\u003e","brand":"Printify","offers":[{"title":"11oz","offer_id":50978065416295,"sku":"35112957636497234436","price":21.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0596\/8746\/9159\/files\/8141093118316160990_2048.jpg?v=1793684082"},{"product_id":"trialsworn-the-look-elsewhere-seer-mug","title":"Trialsworn, the Look-Elsewhere Seer Mug","description":"\u003cp\u003eLook-elsewhere effect: a local significance must be corrected for the number of places you searched, lowering the global significance.\u003c\/p\u003e\n\u003cp\u003eThe joke: Anyone who saw a bump vanish after the trials factor knows the feeling. The slogan on the mug reads \u003cstrong\u003eLOCAL 3 SIGMA. GLOBAL SHRUG.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSource: E. Gross \u0026amp; O. Vitells, Eur. Phys. J. C 70, 525 (2010).\u003c\/p\u003e","brand":"Printify","offers":[{"title":"11oz","offer_id":50978065612903,"sku":"65014321253812929964","price":21.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0596\/8746\/9159\/files\/8066464414416871636_2048.jpg?v=1793684096"},{"product_id":"sigmarel-the-five-sigma-gatekeeper-mug","title":"Sigmarel, the Five-Sigma Gatekeeper Mug","description":"\u003cp\u003eThe particle-physics discovery convention is 5σ, a one-sided p-value of about 2.9 × 10⁻⁷, roughly 1 in 3.5 million.\u003c\/p\u003e\n\u003cp\u003eThe joke: The bar is absurdly high because of systematics and the trials factor. The slogan on the mug reads \u003cstrong\u003e1 IN 3.5 MILLION OR IT DIDN'T HAPPEN.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSource: Particle Data Group, R. L. Workman et al., Prog. Theor. Exp. Phys. 2022, 083C01, 'Statistics' review.\u003c\/p\u003e","brand":"Printify","offers":[{"title":"11oz","offer_id":50978065940583,"sku":"11045955655104148430","price":21.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0596\/8746\/9159\/files\/9315593938587784882_2048.jpg?v=1793684108"},{"product_id":"chivelle-the-too-good-fit-inquisitor-mug","title":"Chivelle, the Too-Good-Fit Inquisitor Mug","description":"\u003cp\u003eχ² per degree of freedom near 1 indicates a good fit; much less than 1 means the error bars were overestimated.\u003c\/p\u003e\n\u003cp\u003eThe joke: A fit that is too good is suspicious, which only fitters know. The slogan on the mug reads \u003cstrong\u003eCHI²\/NDF = 0.2. REVIEWER 2 IS SUSPICIOUS.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSource: Particle Data Group, 'Statistics' review (2022), goodness-of-fit section.\u003c\/p\u003e","brand":"Printify","offers":[{"title":"11oz","offer_id":50978066169959,"sku":"32743935270632921346","price":21.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0596\/8746\/9159\/files\/18355277628562952294_2048.jpg?v=1793684120"},{"product_id":"truncalis-the-divergent-series-oracle-mug","title":"Truncalis, the Divergent-Series Oracle Mug","description":"\u003cp\u003eQED perturbation series is (generally argued to be) asymptotic, not convergent: adding terms improves the answer only up to an optimal order (heuristically ~1\/α ≈ 137), after which it worsens.\u003c\/p\u003e\n\u003cp\u003eThe joke: Every thesis edit after a point is a higher-order term. The slogan on the mug reads \u003cstrong\u003eMORE TERMS. WORSE ANSWER.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSource: F. J. Dyson, Phys. Rev. 85, 631 (1952).\u003c\/p\u003e","brand":"Printify","offers":[{"title":"11oz","offer_id":50978066432103,"sku":"15369295102824933460","price":21.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0596\/8746\/9159\/files\/500841360062762505_2048.jpg?v=1793684132"},{"product_id":"counterterra-the-renormalising-smith-mug","title":"Counterterra, the Renormalising Smith Mug","description":"\u003cp\u003eRenormalisation absorbs divergences into a redefinition of measured mass and charge, leaving finite predictions.\u003c\/p\u003e\n\u003cp\u003eThe joke: Physicists hide infinities in constants; grad students hide them in footnotes. The slogan on the mug reads \u003cstrong\u003eMY INFINITIES ARE RENORMALISED.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSource: F. J. Dyson, Phys. Rev. 75, 486 (1949) and 75, 1736 (1949).\u003c\/p\u003e","brand":"Printify","offers":[{"title":"11oz","offer_id":50978067054695,"sku":"19601446464187175821","price":21.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0596\/8746\/9159\/files\/16656720078867064630_2048.jpg?v=1793684144"},{"product_id":"densara-the-final-state-cartographer-mug","title":"Densara, the Final-State Cartographer Mug","description":"\u003cp\u003eFermi's golden rule: transition rate Γ = (2π\/ħ)|M|² ρ(E\u003csub\u003ef\u003c\/sub\u003e). With no density of final states, there is no transition.\u003c\/p\u003e\n\u003cp\u003eThe joke: The job market as a density of states. The slogan on the mug reads \u003cstrong\u003eNO FINAL STATES. NO TRANSITION.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSource: P. A. M. Dirac, Proc. R. Soc. A 114, 243 (1927); E. Fermi, Nuclear Physics (Univ. Chicago Press, 1950).\u003c\/p\u003e","brand":"Printify","offers":[{"title":"11oz","offer_id":50978067316839,"sku":"77325316806688003706","price":21.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0596\/8746\/9159\/files\/15833063948633107835_2048.jpg?v=1793684156"},{"product_id":"adiabram-the-slow-change-shepherd-mug","title":"Adiabram, the Slow-Change Shepherd Mug","description":"\u003cp\u003eAdiabatic theorem: a system with a non-degenerate, gapped spectrum, changed slowly compared with ħ\/ΔE, stays in its instantaneous eigenstate; sudden changes cause transitions.\u003c\/p\u003e\n\u003cp\u003eThe joke: Advisors who change the thesis scope suddenly excite the student out of the ground state. The slogan on the mug reads \u003cstrong\u003eCHANGE THE SCOPE SLOWLY.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSource: M. Born \u0026amp; V. Fock, Z. Phys. 51, 165 (1928).\u003c\/p\u003e","brand":"Printify","offers":[{"title":"11oz","offer_id":50978067611751,"sku":"13592751972808039575","price":21.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0596\/8746\/9159\/files\/13730350615714815008_2048.jpg?v=1793684163"},{"product_id":"rimehold-the-supercooled-sentinel-mug","title":"Rimehold, the Supercooled Sentinel Mug","description":"\u003cp\u003ePure water droplets can stay liquid down to about −38 °C before homogeneous ice nucleation.\u003c\/p\u003e\n\u003cp\u003eThe joke: Metastability: a single nucleation site and the whole thing freezes at once. The slogan on the mug reads \u003cstrong\u003eSUPERCOOLED. ONE SPECK FROM PANIC.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSource: T. Koop, B. Luo, A. Tsias \u0026amp; T. Peter, Nature 406, 611 (2000).\u003c\/p\u003e","brand":"Printify","offers":[{"title":"11oz","offer_id":50978067873895,"sku":"15287657288787529492","price":21.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0596\/8746\/9159\/files\/90642987289670233_2048.jpg?v=1793684173"},{"product_id":"remanenza-the-hysteresis-countess-mug","title":"Remanenza, the Hysteresis Countess Mug","description":"\u003cp\u003eHysteresis: the area enclosed by a B–H loop equals the energy dissipated per cycle per unit volume.\u003c\/p\u003e\n\u003cp\u003eThe joke: Revisions that return to the original draft still dissipate energy: the loop area. The slogan on the mug reads \u003cstrong\u003eFULL REVISION LOOP. AREA LOST AS HEAT.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSource: E. Warburg, \"Magnetische Untersuchungen\", Ann. Phys. 249, 141 (1881), doi:10.1002\/andp.18812490510; C. P. Steinmetz, \"On the law of hysteresis\", Trans. AIEE 9, 1 (1892), doi:10.1109\/T-AIEE.1892.5570437.\u003c\/p\u003e","brand":"Printify","offers":[{"title":"11oz","offer_id":50978068430951,"sku":"34014826701437110598","price":21.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0596\/8746\/9159\/files\/2453856400573587762_2048.jpg?v=1793684182"},{"product_id":"creamward-the-milk-first-alchemist-mug","title":"Creamward, the Milk-First Alchemist Mug","description":"\u003cp\u003eNewton's law of cooling: loss rate ∝ (T − T\u003csub\u003eenv\u003c\/sub\u003e). With fridge-cold milk, adding it first lets the cold deficit relax toward room temperature too, so milk-first is hotter at drinking time; nonlinear radiative and evaporative losses (largest when hottest) push the same way.\u003c\/p\u003e\n\u003cp\u003eThe joke: Cooling rate depends on ΔT, so milk timing matters. The slogan on the mug reads \u003cstrong\u003eADD THE MILK FIRST. NEWTON AGREES.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSource: [I. Newton] (published anonymously), \"Scala graduum caloris\", Phil. Trans. 22, 824 (1701).\u003c\/p\u003e","brand":"Printify","offers":[{"title":"11oz","offer_id":50978068660327,"sku":"16811869115963757137","price":21.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0596\/8746\/9159\/files\/264427504366524326_2048.jpg?v=1793683780"},{"product_id":"vaporelle-the-latent-spirit-mug","title":"Vaporelle, the Latent Spirit Mug","description":"\u003cp\u003eHeating water from 0 to 100 °C takes about 419 kJ\/kg; vaporising it takes about 2257 kJ\/kg.\u003c\/p\u003e\n\u003cp\u003eThe joke: Leaving costs more than heating; quitting the PhD is a phase change. The slogan on the mug reads \u003cstrong\u003eHEATING: 419 kJ. LEAVING: 2257 kJ.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSource: IAPWS-95 via NIST Chemistry WebBook (h\u003csub\u003el\u003c\/sub\u003e 0.01→99.97 °C = 419.0 kJ\/kg; L\u003csub\u003ev\u003c\/sub\u003e at 101.325 kPa = 2256.4 kJ\/kg).\u003c\/p\u003e","brand":"Printify","offers":[{"title":"11oz","offer_id":50978077114471,"sku":"11876348941300111535","price":21.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0596\/8746\/9159\/files\/1630624105009021038_2048.jpg?v=1793683784"},{"product_id":"rimstain-the-coffee-ring-mapmaker-mug","title":"Rimstain, the Coffee-Ring Mapmaker Mug","description":"\u003cp\u003eCoffee-ring effect: evaporation-driven outward flow deposits particles at the drop edge.\u003c\/p\u003e\n\u003cp\u003eThe joke: Insider: capillary flow, not 'drying slower'. The slogan on the mug reads \u003cstrong\u003eEVAPORATION PUTS EVERYTHING AT THE EDGE.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSource: R. D. Deegan et al., Nature 389, 827 (1997).\u003c\/p\u003e","brand":"Printify","offers":[{"title":"11oz","offer_id":50978085568615,"sku":"33672546279337814136","price":21.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0596\/8746\/9159\/files\/2787770617178427168_2048.jpg?v=1793683790"},{"product_id":"endoreva-the-max-power-engine-mug","title":"Endoreva, the Max-Power Engine Mug","description":"\u003cp\u003eCurzon–Ahlborn efficiency at maximum power: η = 1 − √(T\u003csub\u003ec\u003c\/sub\u003e\/T\u003csub\u003eh\u003c\/sub\u003e).\u003c\/p\u003e\n\u003cp\u003eThe joke: Grad students run at max power, not Carnot efficiency. Distinct from the live Carnot's Ideal poster. The slogan on the mug reads \u003cstrong\u003eMAXIMUM POWER. NOT MAXIMUM EFFICIENCY.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSource: F. L. Curzon \u0026amp; B. Ahlborn, Am. J. Phys. 43, 22 (1975).\u003c\/p\u003e","brand":"Printify","offers":[{"title":"11oz","offer_id":50978094153831,"sku":"20226572627162148831","price":21.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0596\/8746\/9159\/files\/16850009691724488767_2048.jpg?v=1793683655"},{"product_id":"summitbrew-the-high-altitude-brewer-mug","title":"Summitbrew, the High-Altitude Brewer Mug","description":"\u003cp\u003eBoiling point drops with pressure; at ~4200 m (≈ 61 kPa) water boils near 86–87 °C.\u003c\/p\u003e\n\u003cp\u003eThe joke: Mountaintop observers know. The slogan on the mug reads \u003cstrong\u003eAT 4200 M, MY COFFEE NEVER GETS HOT ENOUGH.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSource: IAPWS-IF97 saturation tables; Clausius–Clapeyron.\u003c\/p\u003e","brand":"Printify","offers":[{"title":"11oz","offer_id":50978102575207,"sku":"92550644169491474047","price":21.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0596\/8746\/9159\/files\/17133517837005091957_2048.jpg?v=1793684259"},{"product_id":"clustrelle-the-cheerios-effect-gatherer-mug","title":"Clustrelle, the Cheerios-Effect Gatherer Mug","description":"\u003cp\u003eFloating objects attract via meniscus deformation (Cheerios effect).\u003c\/p\u003e\n\u003cp\u003eThe joke: Bubbles cluster at the rim, like grad students at free food. The slogan on the mug reads \u003cstrong\u003eLONELY BUBBLES ATTRACT AT THE MENISCUS.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSource: D. Vella \u0026amp; L. Mahadevan, Am. J. Phys. 73, 817 (2005).\u003c\/p\u003e","brand":"Printify","offers":[{"title":"11oz","offer_id":50978110963815,"sku":"74064514380163637742","price":21.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0596\/8746\/9159\/files\/6772159393479925914_2048.jpg?v=1793684261"},{"product_id":"stratalat-the-layered-latte-sage-mug","title":"Stratalat, the Layered Latte Sage Mug","description":"\u003cp\u003ePouring espresso into warm milk creates layered latte via double-diffusive convection.\u003c\/p\u003e\n\u003cp\u003eThe joke: Layers come from heat\/salt-like diffusion differences. The slogan on the mug reads \u003cstrong\u003ePOUR SLOWLY. DOUBLE-DIFFUSIVE LAYERS.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSource: N. Xue et al., Nat. Commun. 8, 1960 (2017).\u003c\/p\u003e","brand":"Printify","offers":[{"title":"11oz","offer_id":50978119483495,"sku":"14313575956573585657","price":21.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0596\/8746\/9159\/files\/9151256228042410137_2048.jpg?v=1793684263"},{"product_id":"sloshwyn-the-coffee-walker-mug","title":"Sloshwyn, the Coffee-Walker Mug","description":"\u003cp\u003eWalking with coffee spills because gait frequency is near the liquid's sloshing frequency.\u003c\/p\u003e\n\u003cp\u003eThe joke: Spills are resonance. The slogan on the mug reads \u003cstrong\u003eWALK SLOWER THAN THE SLOSH RESONANCE.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSource: H. C. Mayer \u0026amp; R. Krechetnikov, Phys. Rev. E 85, 046117 (2012).\u003c\/p\u003e","brand":"Printify","offers":[{"title":"11oz","offer_id":50978128167015,"sku":"23002866167132316936","price":21.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0596\/8746\/9159\/files\/4988408351473121088_2048.jpg?v=1793684266"},{"product_id":"tepidora-the-zeroth-law-ghost-mug","title":"Tepidora, the Zeroth-Law Ghost Mug","description":"\u003cp\u003eZeroth law: systems in thermal equilibrium with a third are in equilibrium with each other; a forgotten mug reaches room temperature.\u003c\/p\u003e\n\u003cp\u003eThe joke: Forgotten coffee is equilibrium. The slogan on the mug reads \u003cstrong\u003eCOLD COFFEE. ZEROTH LAW ACHIEVED.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSource: R. H. Fowler \u0026amp; E. A. Guggenheim, Statistical Thermodynamics (Cambridge, 1939).\u003c\/p\u003e","brand":"Printify","offers":[{"title":"11oz","offer_id":50978136686695,"sku":"20370157324357197054","price":21.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0596\/8746\/9159\/files\/2880108504485761437_2048.jpg?v=1793684267"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0596\/8746\/9159\/collections\/physics-mugs.png?v=1793678018","url":"https:\/\/pixelatedphysics.com\/ja\/collections\/physics-mugs.oembed?page=2","provider":"Pixelated Physics","version":"1.0","type":"link"}