{"id":21879,"date":"2021-04-10T04:04:11","date_gmt":"2021-04-10T02:04:11","guid":{"rendered":"https:\/\/xmau.com\/wp\/notiziole\/?p=21879"},"modified":"2021-03-05T16:38:29","modified_gmt":"2021-03-05T15:38:29","slug":"maths-on-the-back-of-an-envelope-ebook","status":"publish","type":"post","link":"https:\/\/xmau.com\/notiziole\/2021\/04\/10\/maths-on-the-back-of-an-envelope-ebook\/","title":{"rendered":"<i>Maths on the Back of an Envelope<\/i> (ebook)"},"content":{"rendered":"<p><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" src=\"https:\/\/i0.wp.com\/xmau.com\/notiziole\/wp-content\/uploads\/sites\/6\/2021\/03\/9780008324599.jpg?resize=132%2C200&#038;ssl=1\" alt=\"\" width=\"132\" height=\"200\" class=\"alignleft size-full wp-image-21866\" \/> Rob Eastaway \u00e8 un noto divulgatore matematico britannico. In questo libro (Rob Eastaway, <em><a href=\"https:\/\/amzn.to\/3scKSBJ\">Maths on the Back of an Envelope<\/a> : Clever ways to (roughly) calculate anything<\/em>, HarperCollins 2019, pag. 208, &euro; 7,29 (cartaceo: Lst 9.99), ISBN 9780008324599) si \u00e8 dedicato alla spannometria. In realt\u00e0 il suo approccio \u00e8 pi\u00f9 ampio. La spannometria vera e propria &#8211; i problemi di Fermi &#8211; sono solo verso la fine, mentre nelle sezioni iniziali del libro Eastaway mette in guardia contro la troppa precisione e insegna un po&#8217; di trucchi del mestiere, oltre che introdurre il suo Zequals (un uguale disegnato coi dentini a sega, per dire che si taglia via tutto tranne la cifra pi\u00f9 significativa). Direi che il libro \u00e8 assolutamente valido per tutti, giovani e meno giovani; leggendolo, imparerete anche a saper non usare la calcolatrice, o almeno a saperla usare con cognizione di causa!<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Spannometria pratica<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center 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commenti","link":"https:\/\/xmau.com\/notiziole\/2006\/07\/18\/how_long_is_a_piece_of_string\/#comments"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":20077,"url":"https:\/\/xmau.com\/notiziole\/2020\/03\/21\/_millions-billions-zillions_-libro\/","url_meta":{"origin":21879,"position":3},"title":"_Millions, Billions, Zillions_ (libro)","author":".mau.","date":"2020-03-21","format":false,"excerpt":"Spannometria presentata da un mito","rel":"","context":"In &quot;rec-2020&quot;","block_context":{"text":"rec-2020","link":"https:\/\/xmau.com\/notiziole\/category\/recensioni\/recensioni-2020\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/xmau.com\/notiziole\/wp-content\/uploads\/sites\/6\/2020\/02\/9780691182773.jpg?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]},{"id":25615,"url":"https:\/\/xmau.com\/notiziole\/2023\/01\/20\/back-in-the-ussr-libro\/","url_meta":{"origin":21879,"position":4},"title":"Back in the USSR 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