{"id":32628,"date":"2017-09-15T15:49:11","date_gmt":"2017-09-15T13:49:11","guid":{"rendered":"https:\/\/ocasapiens-dweb.blogautore.repubblica.it\/?p=32628"},"modified":"2021-12-29T17:28:19","modified_gmt":"2021-12-29T16:28:19","slug":"un-gran-sasso-da-scrivania","status":"publish","type":"post","link":"https:\/\/archivio.ocasapiens.org\/index.php\/2017\/09\/15\/un-gran-sasso-da-scrivania\/","title":{"rendered":"Un Gran Sasso da scrivania"},"content":{"rendered":"<p>In giro per il mondo ci sono piscine olimpioniche e apparati giganteschi per intercettare neutrini e osservare cosa combinano nella sperata collisione con il nucleo di qualche atomo, ma oggi <em>Science<\/em> dedica la copertina a uno <span style=\"color: #0000ff;\"><a href=\"http:\/\/science.sciencemag.org\/content\/357\/6356\/1123\" target=\"_blank\" rel=\"noopener\"><span style=\"color: #0000ff;\">scintillatorino<\/span><\/a><\/span> &#8220;dopato al sodio&#8221; da 14,6 kg (il paper era stato anticipato on line in agosto). Non solo li intercetta, ne misura pure lo scattering elastico coerente<\/p>\n<p style=\"text-align: center;\"><strong>with a 6.7 sigma confidence.<\/strong><\/p>\n<p><img decoding=\"async\" class=\"aligncenter\" src=\"https:\/\/d2ufo47lrtsv5s.cloudfront.net\/content\/sci\/357\/6356\/eaap9023\/F1.medium.gif\" alt=\"\" \/><\/p>\n<p style=\"text-align: center;\">Foto: <span style=\"color: #0000ff;\"><a href=\"http:\/\/science.sciencemag.org\/content\/357\/6356\/eaap9023\" target=\"_blank\" rel=\"noopener\"><span style=\"color: #0000ff;\">Jean Lachat, universit\u00e0 di Chicago<\/span><\/a><span style=\"color: #0000ff;\">\u00a0<\/span><\/span><\/p>\n<p>Per i non abbonati, <span style=\"color: #0000ff;\"><a href=\"https:\/\/arxiv.org\/ftp\/arxiv\/papers\/1708\/1708.01294.pdf\" target=\"_blank\" rel=\"noopener\"><span style=\"color: #0000ff;\">bozza<\/span><\/a><\/span> del paper di G. Abimov et al. della <span style=\"color: #0000ff;\"><a href=\"https:\/\/sites.duke.edu\/coherent\/collaboration\/\" target=\"_blank\" rel=\"noopener\"><span style=\"color: #0000ff;\">Coherent collaboration<\/span><\/a><\/span>. Dal com. stampa dell&#8217;<span style=\"color: #0000ff;\"><a href=\"https:\/\/news.uchicago.edu\/article\/2017\/08\/03\/worlds-smallest-neutrino-detector-observes-elusive-interactions-particles\" target=\"_blank\" rel=\"noopener\"><span style=\"color: #0000ff;\">universit\u00e0 di Chicago<\/span><\/a><\/span>\u00a0con le foto della macchinetta e del suo inventore Juan Collar:<\/p>\n<p style=\"padding-left: 30px;\">\u201cWhy did it take 43 years to observe this interaction?\u201d asked co-author Juan Collar, UChicago professor in physics and a senior member of the\u00a0<a href=\"http:\/\/cfcp.uchicago.edu\/\">Kavli Institute for Cosmological Physics<\/a>. \u201cWhat takes place is very subtle.\u201d Freedman [il fisico che l&#8217;aveva ipotizzata nel 1974] did not see much of a chance for experimental confirmation, writing at the time: \u201cOur suggestion may be an act of hubris, because the inevitable constraints of interaction rate, resolution and background pose grave experimental difficulties.\u201d<\/p>\n<p>A proposito di termodinamica (reale) e miniaturizzazione, <span style=\"color: #0000ff;\"><a href=\"http:\/\/science.sciencemag.org\/content\/357\/6356\/1130\" target=\"_blank\" rel=\"noopener\"><span style=\"color: #0000ff;\">Rujun Ma et al. <\/span><\/a><\/span>dell&#8217;UC-Los Angeles hanno fatto una<span style=\"color: #0000ff;\"><a href=\"https:\/\/arpa-e.energy.gov\/?q=slick-sheet-project\/compact-solid-state-cooling-systems\" target=\"_blank\" rel=\"noopener\"><span style=\"color: #0000ff;\"> pompa di calore <\/span><\/a><\/span>con una pellicola elettrocalorica:<\/p>\n<p style=\"padding-left: 30px;\">Reversible electrostatic forces reduce parasitic power consumption and allow efficient heat transfer through good thermal contacts with the heat source or heat sink. The EC device produced a specific cooling power of 2.8 watts per gram and a <strong>COP of 13.\u00a0<\/strong><\/p>\n<p>Altro che tubo a FuF.<\/p>\n<p style=\"text-align: center;\">*<\/p>\n<p>Dopo la strage nella scuola di elementare Sandy Hooks nel 2012, su richiesta del governo Obama \u00a0gli NIH avevano finanziato 22 progetti di ricerca su come prevenire altre stragi. <span style=\"color: #0000ff;\"><a href=\"http:\/\/science.sciencemag.org\/content\/357\/6356\/1082\" target=\"_blank\" rel=\"noopener\"><span style=\"color: #0000ff;\">Meredith Wadman<\/span><\/a> <\/span>scrive che da quando c&#8217;\u00e8 il governo Trump, i nuovi progetti vengono respinti nonostante le proteste e che il &#8220;programma \u00e8 in considerazione&#8221;.<\/p>\n<p style=\"text-align: center;\">***<\/p>\n<p>Ieri \u00e8 uscito l&#8217;<span style=\"color: #0000ff;\"><a href=\"https:\/\/www.eia.gov\/outlooks\/ieo\/\" target=\"_blank\" rel=\"noopener\"><span style=\"color: #0000ff;\">International Energy Outlook 2017<\/span><\/a><\/span> dell&#8217;EIA. Dal sommario:<\/p>\n<p style=\"padding-left: 30px;\">In the long term, the IEO2017 Reference case projects increased world consumption of marketed energy from all fuel sources\u2014except coal, where demand is essentially flat\u2014through 2040. Renewables are the world\u2019s fastest-growing energy source, with consumption increasing by an average 2.3%\/year between 2015 and 2040. The world\u2019s second fastest-growing source of energy is nuclear power, with consumption increasing by 1.5%\/year over that period.<\/p>\n<p>Da un lato nel prossimo decennio dovrebbero entrare in funzione le centrali nucleari di Cina e India, dall&#8217;altro i rapporti precedenti prevedevano una crescita maggiore che non \u00e8 successa.<\/p>\n<p style=\"padding-left: 30px;\">Although consumption of nonfossil fuels is expected to grow faster than fossil fuels, fossil fuels still account for 77% of energy use in 2040. Natural gas is the fastest-growing fossil fuel in the projections. Global natural gas consumption increases by 1.4%\/year.<\/p>\n<p>Le proiezioni EIA sottostimano il risparmio energetico e sovrastimano la crescita dei combustibili fossili da vent&#8217;anni. Cmq se \u00e8 cos\u00ec, non c&#8217;\u00e8 verso di contenere l&#8217;aumento della temperatura media globale entro 2 \u00b0C rispetto al 1800.<\/p>\n<p style=\"text-align: center;\">*<\/p>\n<p>Coincidenza, \u00e8 uscito anche<a href=\"http:\/\/www.fao.org\/state-of-food-security-nutrition\/en\/\" target=\"_blank\" rel=\"noopener\"><span style=\"color: #0000ff;\"> State of Food Security and Nutrition 2017<\/span>:<\/a><\/p>\n<p style=\"padding-left: 30px;\">After steadily declining for over a decade, global hunger appears to be on the rise, affecting 11 percent of the global population.<\/p>\n<p>Le agenzie ONU stimano che nel 2016 le persone denutrite sono aumentate di 38 milioni rispetto al 2015:<\/p>\n<p style=\"padding-left: 30px;\">The food security situation visibly worsened in parts of sub-Saharan Africa, South Eastern and Western Asia. This was most notable in situations of conflict, in particular where the food security impacts of conflict were compounded by droughts of floods, linked in part to El Ni\u00f1o phenomenon and climate-related shocks.<\/p>\n<p><strong>In tema<\/strong><br \/>\nAvviso ai\u00a0<a href=\"https:\/\/ocasapiens-dweb.blogautore.repubblica.it\/2017\/09\/14\/come-sopravvivere-alla-disinformazione\/comment-page-1\/#comment-1052600\" target=\"_blank\" rel=\"noopener\">negaioli<\/a>:\u00a0da me sprecate tempo, invece\u00a0<a href=\"https:\/\/climatefeedback.org\/false-claim-global-warming-natural-propagates-climate-misinformation-echo-chamber\/\" target=\"_blank\" rel=\"noopener\">qui potete<\/a><span style=\"color: #0000ff;\"><span style=\"color: #0000ff;\">\u00a0<span style=\"color: #000000;\">mentire<\/span><\/span><\/span>\u00a0sul clima e vi pagano pure.<\/p>\n<p style=\"text-align: center;\">***<\/p>\n<p>La <span style=\"color: #0000ff;\"><a href=\"http:\/\/www.nature.com\/news\/cassini-crashes-into-saturn-but-could-still-deliver-big-discoveries-1.22619\" target=\"_blank\" rel=\"noopener\"><span style=\"color: #0000ff;\">fine<\/span><\/a><\/span> della <span style=\"color: #0000ff;\"><a href=\"https:\/\/www.youtube.com\/NASAJPL\/live\" target=\"_blank\" rel=\"noopener\"><span style=\"color: #0000ff;\">grande Cassini<\/span><\/a><\/span>, sniff&#8230;&#8221;So long and thanks for all the <span style=\"color: #0000ff;\"><a href=\"http:\/\/www.esa.int\/Our_Activities\/Space_Science\/Highlights\/Parting_views\" target=\"_blank\" rel=\"noopener\"><span style=\"color: #0000ff;\">postcards<\/span><\/a><\/span>.&#8221;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In giro per il mondo ci sono piscine olimpioniche e apparati giganteschi per intercettare neutrini e osservare cosa combinano nella sperata collisione con il nucleo di qualche atomo, ma oggi Science dedica la copertina a uno scintillatorino &#8220;dopato al sodio&#8221; da 14,6 kg (il paper era stato anticipato on line in agosto). Non solo li&hellip; <a class=\"more-link\" href=\"https:\/\/archivio.ocasapiens.org\/index.php\/2017\/09\/15\/un-gran-sasso-da-scrivania\/\">Continua a leggere <span class=\"screen-reader-text\">Un Gran Sasso da scrivania<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5,10,16,23],"tags":[1172,2167,2295,3421,4797,4905,6306],"class_list":["post-32628","post","type-post","status-publish","format-standard","hentry","category-astronomia","category-clima","category-fisica","category-non-profit","tag-cassini","tag-effetto-elettrocalorico","tag-energia","tag-ieo2017","tag-neutrini","tag-nuovi-materiali","tag-sicurezza-alimentare","entry"],"_links":{"self":[{"href":"https:\/\/archivio.ocasapiens.org\/index.php\/wp-json\/wp\/v2\/posts\/32628","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/archivio.ocasapiens.org\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/archivio.ocasapiens.org\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/archivio.ocasapiens.org\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/archivio.ocasapiens.org\/index.php\/wp-json\/wp\/v2\/comments?post=32628"}],"version-history":[{"count":2,"href":"https:\/\/archivio.ocasapiens.org\/index.php\/wp-json\/wp\/v2\/posts\/32628\/revisions"}],"predecessor-version":[{"id":45129,"href":"https:\/\/archivio.ocasapiens.org\/index.php\/wp-json\/wp\/v2\/posts\/32628\/revisions\/45129"}],"wp:attachment":[{"href":"https:\/\/archivio.ocasapiens.org\/index.php\/wp-json\/wp\/v2\/media?parent=32628"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/archivio.ocasapiens.org\/index.php\/wp-json\/wp\/v2\/categories?post=32628"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/archivio.ocasapiens.org\/index.php\/wp-json\/wp\/v2\/tags?post=32628"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}