{"product_id":"the-bennett-pinch-plate-079-physics-poster","title":"The Bennett Pinch – Plate 079 Physics Poster","description":"\u003cp\u003ePlate 79 speaks for itself: \u003cem\u003e“Current that strangles itself.”\u003c\/em\u003e\u003c\/p\u003e\u003ch3\u003eThe Physics\u003c\/h3\u003e\u003cp\u003eA current along a plasma column makes a magnetic field that squeezes it inward. In equilibrium the magnetic pressure balances the plasma's thermal pressure.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eμ₀ I² = 8π N k_B (T_e + T_i)\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eμ₀: vacuum permeability, N A⁻²\u003c\/li\u003e\n\u003cli\u003eI: current, A\u003c\/li\u003e\n\u003cli\u003eN: particles per unit length, m⁻¹\u003c\/li\u003e\n\u003cli\u003ek_B: Boltzmann constant, J K⁻¹\u003c\/li\u003e\n\u003cli\u003eT_e, T_i: electron and ion temperatures, K\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eIts own magnetic field squeezes the plasma. Bennett, 1934.\u003c\/p\u003e\u003ch3\u003eSources\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eW. H. Bennett, Phys. Rev. 45, 890 (1934).\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eOn the poster\u003c\/h3\u003e\u003cp\u003ePlate 079, “The Bennett Pinch”: the pixel-art plate with its slogan “Current that strangles itself.”, the key equation and the facts panel shown above. Pixelated Physics. Physics. Personified.\u003c\/p\u003e","brand":"Printify","offers":[{"title":"9'' x 12\" (Vertical) \/ Matte","offer_id":50962679726183,"sku":"65530183221799525042","price":19.99,"currency_code":"USD","in_stock":true},{"title":"9'' x 12\" (Vertical) \/ Fine Art","offer_id":50962679758951,"sku":"21183363193183430958","price":29.99,"currency_code":"USD","in_stock":true},{"title":"9'' x 12\" (Vertical) \/ Semi Glossy","offer_id":50962679791719,"sku":"71572635971439636954","price":19.99,"currency_code":"USD","in_stock":true},{"title":"18″ x 24″ (Vertical) \/ Fine Art","offer_id":50962679824487,"sku":"19077389096774068762","price":44.99,"currency_code":"USD","in_stock":true},{"title":"18″ x 24″ (Vertical) \/ Semi Glossy","offer_id":50962679857255,"sku":"32522723969490623266","price":29.99,"currency_code":"USD","in_stock":true},{"title":"18″ x 24″ (Vertical) \/ Matte","offer_id":50962679890023,"sku":"17829032025890591741","price":29.99,"currency_code":"USD","in_stock":true},{"title":"36'' x 48\" (Vertical) \/ Matte","offer_id":50962679922791,"sku":"23807434479621914165","price":69.99,"currency_code":"USD","in_stock":true},{"title":"36'' x 48\" (Vertical) \/ Fine Art","offer_id":50962679955559,"sku":"21342856630936771326","price":119.99,"currency_code":"USD","in_stock":true},{"title":"36'' x 48\" (Vertical) \/ Semi Glossy","offer_id":50962679988327,"sku":"30151550055385347959","price":69.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0596\/8746\/9159\/files\/17157604824849315725_2048.jpg?v=1793636644","url":"https:\/\/pixelatedphysics.com\/es\/products\/the-bennett-pinch-plate-079-physics-poster","provider":"Pixelated Physics","version":"1.0","type":"link"}