{"title":"Seminar Spectres","description":"\u003cp\u003eThursday 4 PM: the projector hums, the speaker is overtime, and every audience member is a physical law. Fifteen pixel-art physics mugs, M-31 to M-45.\u003c\/p\u003e","products":[{"product_id":"broadling-the-short-lived-herald-mug","title":"Broadling, the Short-Lived Herald Mug","description":"\u003cp\u003eNatural linewidth: a state with lifetime τ has energy width Γ = ħ\/τ (Lorentzian line).\u003c\/p\u003e\n\u003cp\u003eThe joke: A 5-minute talk has a huge energy uncertainty: vague content. The slogan on the mug reads \u003cstrong\u003eSHORT TALK. BROAD LINE.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSource: V. Weisskopf \u0026amp; E. Wigner, Z. Phys. 63, 54 (1930).\u003c\/p\u003e","brand":"Pixelated Physics","offers":[{"title":"11oz","offer_id":50980013867111,"sku":"20262015659750825770","price":21.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0596\/8746\/9159\/files\/8767178352688343843_2048.jpg?v=1793684230"},{"product_id":"islandine-the-coulomb-blockade-gatekeeper-mug","title":"Islandine, the Coulomb-Blockade Gatekeeper Mug","description":"\u003cp\u003eCoulomb blockade: on a small island with charging energy e²\/2C ≫ k\u003csub\u003eB\u003c\/sub\u003eT, electrons tunnel one at a time.\u003c\/p\u003e\n\u003cp\u003eThe joke: The session chair as a single-electron transistor. The slogan on the mug reads \u003cstrong\u003eONE QUESTION AT A TIME.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSource: T. A. Fulton \u0026amp; G. J. Dolan, Phys. Rev. Lett. 59, 109 (1987).\u003c\/p\u003e","brand":"Pixelated Physics","offers":[{"title":"11oz","offer_id":50980022091879,"sku":"43232821095434910227","price":21.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0596\/8746\/9159\/files\/3073940953730713799_2048.jpg?v=1793684238"},{"product_id":"avergail-the-mean-field-courtier-mug","title":"Avergail, the Mean-Field Courtier Mug","description":"\u003cp\u003eMean-field (Weiss) theory replaces neighbours by their average field; it fails near critical points where fluctuations dominate.\u003c\/p\u003e\n\u003cp\u003eThe joke: Mean field ignores fluctuations, which is why it fails in the heated Q\u0026amp;A. The slogan on the mug reads \u003cstrong\u003eMEAN FIELD: I FEEL THE ROOM'S AVERAGE.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSource: P. Weiss, J. Phys. Théor. Appl. 6, 661 (1907).\u003c\/p\u003e","brand":"Pixelated Physics","offers":[{"title":"11oz","offer_id":50980030382183,"sku":"11825440947391909116","price":21.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0596\/8746\/9159\/files\/14303534346729402147_2048.jpg?v=1793684245"},{"product_id":"decouplarch-the-two-timescale-diplomat-mug","title":"Decouplarch, the Two-Timescale Diplomat Mug","description":"\u003cp\u003eBorn–Oppenheimer approximation: fast electrons and slow nuclei can be treated separately.\u003c\/p\u003e\n\u003cp\u003eThe joke: 'Let's take this offline' is a timescale separation. The slogan on the mug reads \u003cstrong\u003eSEPARATE TIMESCALES. TAKE IT OFFLINE.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSource: M. Born \u0026amp; R. Oppenheimer, Ann. Phys. 389, 457 (1927).\u003c\/p\u003e","brand":"Pixelated Physics","offers":[{"title":"11oz","offer_id":50980038606951,"sku":"48114894533759222421","price":21.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0596\/8746\/9159\/files\/13788369602256488936_2048.jpg?v=1793684281"},{"product_id":"nutariel-the-rabi-flopping-dozer-mug","title":"Nutariel, the Rabi-Flopping Dozer Mug","description":"\u003cp\u003eRabi oscillation: a driven two-level system oscillates between states with P(t) = sin²(Ωt\/2) on resonance.\u003c\/p\u003e\n\u003cp\u003eThe joke: Nodding off and jerking awake with a perfect period. The slogan on the mug reads \u003cstrong\u003eAWAKE. ASLEEP. AWAKE. RABI FLOPPING.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSource: I. I. Rabi, Phys. Rev. 51, 652 (1937).\u003c\/p\u003e","brand":"Pixelated Physics","offers":[{"title":"11oz","offer_id":50980046864487,"sku":"32232698934435439873","price":21.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0596\/8746\/9159\/files\/1222171081786482862_2048.jpg?v=1793684289"},{"product_id":"superlumen-the-phase-velocity-courier-mug","title":"Superlumen, the Phase-Velocity Courier Mug","description":"\u003cp\u003ePhase velocity can exceed c in dispersive media while the signal (front) velocity does not; no information travels faster than light.\u003c\/p\u003e\n\u003cp\u003eThe joke: Fast-talking speakers whose slides move fast but convey nothing. The slogan on the mug reads \u003cstrong\u003ePHASE VELOCITY ABOVE c. NO INFORMATION SENT.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSource: L. Brillouin, Wave Propagation and Group Velocity (Academic Press, 1960).\u003c\/p\u003e","brand":"Pixelated Physics","offers":[{"title":"11oz","offer_id":50980055089255,"sku":"31067003948913097442","price":21.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0596\/8746\/9159\/files\/3814067525881937930_2048.jpg?v=1793684296"},{"product_id":"dissipar-the-fidgeting-oracle-mug","title":"Dissipar, the Fidgeting Oracle Mug","description":"\u003cp\u003eFluctuation–dissipation theorem: the spectrum of equilibrium fluctuations determines the linear response (dissipation).\u003c\/p\u003e\n\u003cp\u003eThe joke: FDT: fluctuations at rest tell you the response; the fidgety audience member will ask. The slogan on the mug reads \u003cstrong\u003eHOW YOU FIDGET PREDICTS HOW YOU RESPOND.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSource: H. B. Callen \u0026amp; T. A. Welton, Phys. Rev. 83, 34 (1951); R. Kubo, J. Phys. Soc. Jpn. 12, 570 (1957).\u003c\/p\u003e","brand":"Pixelated Physics","offers":[{"title":"11oz","offer_id":50980063412327,"sku":"29152240890706865497","price":21.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0596\/8746\/9159\/files\/14960764898492605335_2048.jpg?v=1793684304"},{"product_id":"backrowena-the-broken-symmetry-usher-mug","title":"Backrowena, the Broken-Symmetry Usher Mug","description":"\u003cp\u003eSpontaneous symmetry breaking: the ground state lacks the symmetry of the Hamiltonian.\u003c\/p\u003e\n\u003cp\u003eThe joke: The seats are symmetric; the audience picks one vacuum. The slogan on the mug reads \u003cstrong\u003eSYMMETRIC ROOM. EVERYONE IN THE BACK.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSource: J. Goldstone, Nuovo Cim. 19, 154 (1961).\u003c\/p\u003e","brand":"Pixelated Physics","offers":[{"title":"11oz","offer_id":50980071637095,"sku":"18714521331461866129","price":21.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0596\/8746\/9159\/files\/11675890910245850912_2048.jpg?v=1793684311"},{"product_id":"perturbelle-the-first-order-listener-mug","title":"Perturbelle, the First-Order Listener Mug","description":"\u003cp\u003eRayleigh–Schrödinger perturbation theory: first-order energy shift E⁽¹⁾ = ⟨n|V|n⟩, valid only when V is small.\u003c\/p\u003e\n\u003cp\u003eThe joke: The admission: you lost the talk at second order. The slogan on the mug reads \u003cstrong\u003eTO FIRST ORDER, I FOLLOWED.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSource: E. Schrödinger, Ann. Phys. 385, 437 (1926).\u003c\/p\u003e","brand":"Pixelated Physics","offers":[{"title":"11oz","offer_id":50980954308711,"sku":"21374212246571606449","price":21.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0596\/8746\/9159\/files\/1225472958737895714_2048.jpg?v=1793684704"},{"product_id":"specklorn-the-pointer-speckle-phantom-mug","title":"Specklorn, the Pointer-Speckle Phantom Mug","description":"\u003cp\u003eFully developed laser speckle has contrast C = σ\u003csub\u003eI\u003c\/sub\u003e\/⟨I⟩ = 1.\u003c\/p\u003e\n\u003cp\u003eThe joke: Speckle is the grainy glitter of the laser pointer dot; coherence makes it. The slogan on the mug reads \u003cstrong\u003eCOHERENT LIGHT. INCOHERENT TALK.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSource: J. W. Goodman, Speckle Phenomena in Optics (Roberts, 2007).\u003c\/p\u003e","brand":"Pixelated Physics","offers":[{"title":"11oz","offer_id":50980963713127,"sku":"22368074047726308318","price":21.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0596\/8746\/9159\/files\/7634031538023454051_2048.jpg?v=1793684713"},{"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":"Pixelated Physics","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"},{"product_id":"aliasyne-the-undersampled-twin-mug","title":"Aliasyne, the Undersampled Twin Mug","description":"\u003cp\u003eSampling theorem: a signal must be sampled above twice its highest frequency; below that, frequencies alias.\u003c\/p\u003e\n\u003cp\u003eThe joke: Skimming slides gives you a slower, wrong version of the talk. The slogan on the mug reads \u003cstrong\u003eSAMPLED TOO SLOWLY. ALL OF IT ALIASED.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSource: C. E. Shannon, Proc. IRE 37, 10 (1949).\u003c\/p\u003e","brand":"Pixelated Physics","offers":[{"title":"11oz","offer_id":50980974985319,"sku":"16841855811576027881","price":21.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0596\/8746\/9159\/files\/7664490002733521166_2048.jpg?v=1793684729"},{"product_id":"lunelock-the-tidally-locked-speaker-mug","title":"Lunelock, the Tidally Locked Speaker Mug","description":"\u003cp\u003eTidal locking: tidal torque despins a satellite until rotation period equals orbital period, so it always shows the same face (as the Moon does).\u003c\/p\u003e\n\u003cp\u003eThe joke: The speaker who never turns from the screen. The slogan on the mug reads \u003cstrong\u003eTIDALLY LOCKED TO THE SLIDES.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSource: S. J. Peale, \"Rotation histories of the natural satellites,\" in Planetary Satellites, ed. J. A. Burns (Univ. Arizona Press, 1977), pp. 87–112; B. Gladman et al., Icarus 122, 166 (1996).\u003c\/p\u003e","brand":"Pixelated Physics","offers":[{"title":"11oz","offer_id":50980983308391,"sku":"26427013094352352558","price":21.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0596\/8746\/9159\/files\/1834911177135662170_2048.jpg?v=1793684737"},{"product_id":"harmonel-the-green-pointer-imp-mug","title":"Harmonel, the Green-Pointer Imp Mug","description":"\u003cp\u003eCheap green 532 nm laser pointers are frequency-doubled 1064 nm (Nd:YVO₄) lasers, and some leak invisible infrared (808 nm diode pump light and 1064 nm) alongside the green.\u003c\/p\u003e\n\u003cp\u003eThe joke: Only laser people know the pointer is a nonlinear crystal and a safety hazard. The slogan on the mug reads \u003cstrong\u003eGREEN POINTER. INVISIBLE 1064 TOO.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSource: J. Galang, A. Restelli, E. W. Hagley \u0026amp; C. W. Clark, \"A Green Laser Pointer Hazard,\" NIST Technical Note 1668 (2010), doi:10.6028\/NIST.TN.1668.\u003c\/p\u003e","brand":"Pixelated Physics","offers":[{"title":"11oz","offer_id":50980991631463,"sku":"17965002206128694773","price":21.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0596\/8746\/9159\/files\/6691060809780111367_2048.jpg?v=1793684744"},{"product_id":"distalis-the-far-field-back-row-watcher-mug","title":"Distalis, the Far-Field Back-Row Watcher Mug","description":"\u003cp\u003eIn the Fraunhofer (far-field) regime the diffracted field is the Fourier transform of the aperture.\u003c\/p\u003e\n\u003cp\u003eThe joke: From the back row you get the talk's spectrum, not its content. Distinct from the live Fraunhofer's Lines poster (a different Fraunhofer topic). The slogan on the mug reads \u003cstrong\u003eFAR FIELD: I ONLY GET THE FOURIER TRANSFORM.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSource: M. Born \u0026amp; E. Wolf, Principles of Optics, 7th ed. (Cambridge, 1999), §8.3.3.\u003c\/p\u003e","brand":"Pixelated Physics","offers":[{"title":"11oz","offer_id":50980999856231,"sku":"12608602230386681816","price":21.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0596\/8746\/9159\/files\/8874316279930891842_2048.jpg?v=1793684752"}],"url":"https:\/\/pixelatedphysics.com\/ko\/collections\/seminar-spectres.oembed","provider":"Pixelated Physics","version":"1.0","type":"link"}