{"product_id":"photo-51-plate-100-physics-poster","title":"Photo 51 – Plate 100 Physics Poster","description":"\u003cp\u003ePlate 100 speaks for itself: \u003cem\u003e“An X on film revealed the double helix.”\u003c\/em\u003e\u003c\/p\u003e\u003ch3\u003eThe Physics\u003c\/h3\u003e\u003cp\u003eFranklin and Gosling's X-ray photograph of B-DNA shows an X of spots, the signature of a helix, with layer lines spaced by its pitch.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eP = 10 h\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eP: helical pitch along the fibre axis, 3.4 nm\u003c\/li\u003e\n\u003cli\u003eh: rise per base pair, 0.34 nm\u003c\/li\u003e\n\u003cli\u003e10: base pairs per turn, dimensionless\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThe X of spots means a helix. Layer lines repeat every 1\/P: fibre-axis P = 3.4 nm.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eHonest caveat:\u003c\/em\u003e About 10 base pairs per turn is the fibre value; DNA in solution is closer to 10.5.\u003c\/p\u003e\u003ch3\u003eSources\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eR. E. Franklin, R. G. Gosling, Nature 171, 740 (1953).\u003c\/li\u003e\n\u003cli\u003eJ. D. Watson, F. H. C. Crick, Nature 171, 737 (1953).\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOn the poster\u003c\/h3\u003e\u003cp\u003ePlate 100, “Photo 51”: the pixel-art plate with its slogan “An X on film revealed the double helix.”, 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":50962757353575,"sku":"52324206151954111194","price":19.99,"currency_code":"USD","in_stock":true},{"title":"9'' x 12\" (Vertical) \/ Fine Art","offer_id":50962757386343,"sku":"32803595071094259107","price":29.99,"currency_code":"USD","in_stock":true},{"title":"9'' x 12\" (Vertical) \/ Semi Glossy","offer_id":50962757419111,"sku":"20519041923368034097","price":19.99,"currency_code":"USD","in_stock":true},{"title":"18″ x 24″ (Vertical) \/ Fine Art","offer_id":50962757451879,"sku":"89734140744072246940","price":44.99,"currency_code":"USD","in_stock":true},{"title":"18″ x 24″ (Vertical) \/ Semi Glossy","offer_id":50962757484647,"sku":"28610210030154565532","price":29.99,"currency_code":"USD","in_stock":true},{"title":"18″ x 24″ (Vertical) \/ Matte","offer_id":50962757517415,"sku":"47358380258391253611","price":29.99,"currency_code":"USD","in_stock":true},{"title":"36'' x 48\" (Vertical) \/ Matte","offer_id":50962757550183,"sku":"17128747916220016620","price":69.99,"currency_code":"USD","in_stock":true},{"title":"36'' x 48\" (Vertical) \/ Fine Art","offer_id":50962757582951,"sku":"21914918947183048016","price":119.99,"currency_code":"USD","in_stock":true},{"title":"36'' x 48\" (Vertical) \/ Semi Glossy","offer_id":50962757615719,"sku":"67418545976582840736","price":69.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0596\/8746\/9159\/files\/3680725390711828446_2048.jpg?v=1793638104","url":"https:\/\/pixelatedphysics.com\/it\/products\/photo-51-plate-100-physics-poster","provider":"Pixelated Physics","version":"1.0","type":"link"}