{"id":47728,"date":"2023-07-31T07:30:04","date_gmt":"2023-07-31T05:30:04","guid":{"rendered":"https:\/\/a-desk.org\/?p=47728"},"modified":"2023-07-31T13:12:05","modified_gmt":"2023-07-31T11:12:05","slug":"el-peso-del-aire","status":"publish","type":"post","link":"https:\/\/a-desk.org\/ca\/magazine\/el-peso-del-aire\/","title":{"rendered":"El pes de l&#8217;aire"},"content":{"rendered":"<p>Un feix d&#8217;electrons interacciona amb la superf\u00edcie d&#8217;una mostra recoberta amb una capa de carboni molt prima que actua com a conductor. L&#8217;intercanvi d&#8217;energia entre el feix d&#8217;electrons i la mostra dona com a resultat la reflexi\u00f3 d&#8217;electrons d&#8217;alta energia. Un detector format per lents basades en electroimants, mesura la quantitat i intensitat dels electrons que retorna la mostra. El resultat \u00e9s una imatge digital de gran profunditat de camp i aparen\u00e7a n\u00edtida i realista amb una resoluci\u00f3 de 0,4 i 20 nan\u00f2metres. \u00c9s un microscopi electr\u00f2nic de rastreig (REM) que ha produ\u00eft una imatge in\u00e8dita de quelcom invisible als nostres ulls: a l&#8217;ala d&#8217;una abella hi ha alguna cosa que li impedeix volar i transportar pol\u00b7len com hauria. Qu\u00e8 \u00e9s? \u00c9s mat\u00e8ria particulada que es troba en suspensi\u00f3 en el que anomenem contaminaci\u00f3 de l&#8217;aire en entorns urbans, principalment per les emissions de combustibles f\u00f2ssils, el desgast de neum\u00e0tics i pastilles de fre, que s&#8217;ha anat dipositant sobre l&#8217;ala.<span class=\"footnote_referrer\"><a role=\"button\" tabindex=\"0\" onclick=\"footnote_moveToReference_47728_1('footnote_plugin_reference_47728_1_1');\" onkeypress=\"footnote_moveToReference_47728_1('footnote_plugin_reference_47728_1_1');\" ><sup id=\"footnote_plugin_tooltip_47728_1_1\" class=\"footnote_plugin_tooltip_text\">[1]<\/sup><\/a><span id=\"footnote_plugin_tooltip_text_47728_1_1\" class=\"footnote_tooltip\"> <a href=\"https:\/\/www.pnas.org\/doi\/10.1073\/pnas.2009074117\"><span class=\"footnote_url_wrap\">https:\/\/www.pnas.org\/doi\/10.1073\/pnas.2009074117<\/span><\/a> <\/span><\/span><script type=\"text\/javascript\"> jQuery('#footnote_plugin_tooltip_47728_1_1').tooltip({ tip: '#footnote_plugin_tooltip_text_47728_1_1', tipClass: 'footnote_tooltip', effect: 'fade', predelay: 0, fadeInSpeed: 200, delay: 400, fadeOutSpeed: 200, position: 'top center', relative: true, offset: [-7, 0], });<\/script><\/p>\n<div id=\"attachment_47719\" style=\"width: 810px\" class=\"wp-caption aligncenter\"><a href=\"http:\/\/a-desk.org\/wp-content\/uploads\/2023\/07\/Neurona-266x400.jpg\"><img aria-describedby=\"caption-attachment-47719\" decoding=\"async\" class=\"wp-image-47719\" src=\"http:\/\/a-desk.org\/wp-content\/uploads\/2023\/07\/Neurona.jpg\" alt=\"\" width=\"800\" height=\"1204\" srcset=\"https:\/\/a-desk.org\/wp-content\/uploads\/2023\/07\/Neurona.jpg 900w, https:\/\/a-desk.org\/wp-content\/uploads\/2023\/07\/Neurona-266x400.jpg 266w, https:\/\/a-desk.org\/wp-content\/uploads\/2023\/07\/Neurona-768x1155.jpg 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/a><p id=\"caption-attachment-47719\" class=\"wp-caption-text\">Micrografia electr\u00f2nica de transmissi\u00f3 de secci\u00f3 prima del cervell, identificant part\u00edcules arrodonides de morfologia de magnetita. Barbara A. Maher et al, doi:<a href=\"doi: 10.1073\/pnas.1605941113\"> 10.1073\/pnas.1605941113<\/a>.<\/p><\/div>\n<p>Una altra imatge REM in\u00e8dita recent de la secci\u00f3 d&#8217;una neurona humana identifica la pres\u00e8ncia de part\u00edcules an\u00f2males de forma circular de color negre. L&#8217;an\u00e0lisi d&#8217;aquestes part\u00edcules revela que es tracta de magnetita esferificada que es troba en suspensi\u00f3 en la contaminaci\u00f3 de l&#8217;aire com a subproducte de la crema de derivats del petroli en motors de combusti\u00f3. Les nano-esferes de magnetita poden entrar directament al cervell pel nervi olfactiu en inspirar aire, el cos no les elimina, es van dipositant, i, donada les seves propietats magn\u00e8tiques, alteren el funcionament neuronal.<span class=\"footnote_referrer\"><a role=\"button\" tabindex=\"0\" onclick=\"footnote_moveToReference_47728_1('footnote_plugin_reference_47728_1_2');\" onkeypress=\"footnote_moveToReference_47728_1('footnote_plugin_reference_47728_1_2');\" ><sup id=\"footnote_plugin_tooltip_47728_1_2\" class=\"footnote_plugin_tooltip_text\">[2]<\/sup><\/a><span id=\"footnote_plugin_tooltip_text_47728_1_2\" class=\"footnote_tooltip\"> <a href=\"https:\/\/www.pnas.org\/doi\/10.1073\/pnas.1605941113\"><span class=\"footnote_url_wrap\">https:\/\/www.pnas.org\/doi\/10.1073\/pnas.1605941113<\/span><\/a> <\/span><\/span><script type=\"text\/javascript\"> jQuery('#footnote_plugin_tooltip_47728_1_2').tooltip({ tip: '#footnote_plugin_tooltip_text_47728_1_2', tipClass: 'footnote_tooltip', effect: 'fade', predelay: 0, fadeInSpeed: 200, delay: 400, fadeOutSpeed: 200, position: 'top center', relative: true, offset: [-7, 0], });<\/script><\/p>\n<p>I, a la vegada, la tecnologia REM que ens permet copsar aquesta materialitat de l&#8217;aire est\u00e0 feta de la mateixa mat\u00e8ria antropog\u00e8nica que queda registrada en les imatges REM. El microscopi necessita l&#8217;acer produ\u00eft a altes temperatures. La mostra necessita una capa de carboni o de metall com l&#8217;or. La imatge resultant \u00e9s digital. Tot all\u00f2 material i digital necessita extracci\u00f3 de mat\u00e8ries cada cop m\u00e9s escasses i dif\u00edcils d&#8217;extraure que produeixen la pols que respirem. Tot el proc\u00e9s requereix energia, que encara \u00e9s en major part d&#8217;origen f\u00f2ssil, que produeix els gasos t\u00f2xics per la salut com el NO2 i les emissions de CO\u2082 que augmenten l&#8217;efecte hivernacle i alteren la climatologia i les condicions de vida.<\/p>\n<p>Aquestes dues imatges ens interpel\u00b7len. Qu\u00e8 sabem de la materialitat de l&#8217;aire? \u00c9s l&#8217;aire m\u00e9s que un percentatge en equilibri fr\u00e0gil, entre altres gasos, d&#8217;oxigen (20,95%), nitrogen (78,08%), arg\u00f3 (0,93%) i el di\u00f2xid de carboni (0,035%)? Qu\u00e8 hi ha m\u00e9s en suspensi\u00f3? Qu\u00e8 hi ha en l&#8217;aire que fa que l&#8217;OMS afirmi que hi ha m\u00e9s de 7 milions de morts a l&#8217;any per contaminaci\u00f3 atmosf\u00e8rica? Quines pres\u00e8ncies, noves materialitats han enva\u00eft l&#8217;aire? A qu\u00e8 \u00e9s deguda aquesta nova materialitat? Des de quan? Per qu\u00e8? L&#8217;aire ens fa? Som el que respirem? Qu\u00e8 sabem dels seus efectes en el comportament i la salut d&#8217;humans i no humans? Est\u00e0 la nostra superviv\u00e8ncia &#8220;en suspensi\u00f3&#8221;? Estem &#8220;a l&#8217;aire&#8221;? Com entendre la capacitat d&#8217;alterar l&#8217;equilibri de la vida a una escala invisible als nostres ulls? Com comprendre l&#8217;escala infinitesimal, entendre que l&#8217;aparentment petita, pres\u00e8ncia de les nano-esferes de magnetita altera enormement el nostre cervell, com comprendre que, l&#8217;aparentment petita, proporci\u00f3 de CO\u2082 al planeta altera radicalment les nostres condicions de vida (de 320 ppm el 1960 a 417 ppm el 2022)? Com la cultura, les practiques art\u00edstiques ens poden ajudar a l&#8217;experi\u00e8ncia de la materialitat de l&#8217;aire per imaginar altres mons possibles?<\/p>\n<p>Per respirar aire pur haur\u00edem d&#8217;anar fins a l&#8217;Oce\u00e0 Austral. Aquesta \u00e9s la magnitud de la petjada humana sobre l&#8217;aire <span class=\"footnote_referrer\"><a role=\"button\" tabindex=\"0\" onclick=\"footnote_moveToReference_47728_1('footnote_plugin_reference_47728_1_3');\" onkeypress=\"footnote_moveToReference_47728_1('footnote_plugin_reference_47728_1_3');\" ><sup id=\"footnote_plugin_tooltip_47728_1_3\" class=\"footnote_plugin_tooltip_text\">[3]<\/sup><\/a><span id=\"footnote_plugin_tooltip_text_47728_1_3\" class=\"footnote_tooltip\"> <a href=\"https:\/\/www.pnas.org\/doi\/full\/10.1073\/pnas.2000134117\"><span class=\"footnote_url_wrap\">https:\/\/www.pnas.org\/doi\/full\/10.1073\/pnas.2000134117<\/span><\/a> <\/span><\/span><script type=\"text\/javascript\"> jQuery('#footnote_plugin_tooltip_47728_1_3').tooltip({ tip: '#footnote_plugin_tooltip_text_47728_1_3', tipClass: 'footnote_tooltip', effect: 'fade', predelay: 0, fadeInSpeed: 200, delay: 400, fadeOutSpeed: 200, position: 'top center', relative: true, offset: [-7, 0], });<\/script>. La frase &#8220;tot all\u00f2 que \u00e9s s\u00f2lid es dissol en l&#8217;aire&#8221; del Manifest comunista d&#8217;Engels i Marx, el 1848, pren ara una dimensi\u00f3 literal. L&#8217;activitat humana, i en forma de gran acceleraci\u00f3, des dels anys cinquanta, est\u00e0 present arreu en forma d&#8217;aerosol, \u00e9s nanom\u00e8trica. Respirem fondo, el que respirem \u00e9s aire met\u00e0l\u00b7lic, el segle XXI \u00e9s el segle de la pols (Parikka, 2015). No hi ha aspectes del canvi clim\u00e0tic i mediambiental m\u00e9s cr\u00edtics que els que afecten la salut i el benestar, i cap \u00e9s m\u00e9s urgent que els que afecten els m\u00e9s vulnerables. La contaminaci\u00f3 atmosf\u00e8rica i el canvi clim\u00e0tic pertanyen a totes dues categories (Neira, 2022). No hi ha dubte que els cels s&#8217;estan tancant. Per\u00f2 tenim en com\u00fa el dret universal a respirar (Mbembe, 2020). La contaminaci\u00f3 \u00e9s colonialisme (Liboiron, 2021). L&#8217;aire est\u00e0 sofrint un atemptat, per\u00f2 la in\u00e8rcia en la manera d&#8217;entendre l&#8217;economia, el desenvolupament i el progr\u00e9s fa borrosa la imaginaci\u00f3 i la gosadia per a explorar altres camins. \u00c9s m\u00e9s f\u00e0cil imaginar-se vivint sense aire que sense capitalisme (Herrero, 2022). Qu\u00e8 significa &#8220;estar en l&#8217;aire&#8221; cultural, pol\u00edticament i m\u00e8dicament, necessitem una concepci\u00f3 cultural del clima com a mitj\u00e0? (Horn, 2018).<\/p>\n<p>Vivim submergits en el fons d&#8217;un oce\u00e0 d&#8217;aire, que per experiments inq\u00fcestionables se sap que t\u00e9 pes (Torricelli 1644). Un pes que ja no nom\u00e9s respon a una densitat d&#8217;1,225 Kg\/m3, al nivell del mar a 15\u202f\u00b0C, que varia en funci\u00f3 de l&#8217;altitud, la temperatura, humitat, etc. Un aire que ha de fer possible la vida, per\u00f2 que l&#8217;esp\u00e8cie humana n&#8217;ha transformat radicalment la composici\u00f3 i l&#8217;ha convertit en mitj\u00e0 de transport de part\u00edcules infinitesimals t\u00f2xiques a causa de l&#8217;\u00fas indiscriminat dels combustibles f\u00f2ssils. La pand\u00e8mia per la COVID-19. Ens va permetre posar en crisi la creen\u00e7a fundacional de la modernitat en la qual hi ha una clara distinci\u00f3 impl\u00edcita entre coses humanes, coses naturals i coses t\u00e8cniques o artificials, ens va permetre experimentar que no t\u00e9 sentit practicar una forma d&#8217;estar en el m\u00f3n en el qual \u00abnosaltres\u00bb, els humans, quedem separats de l&#8217;ecologia, de la naturalesa.<\/p>\n<p>Caldria entrecreuar pr\u00e0ctiques, sabers i afectes relatius a les maneres de viure i de ser fent totalment inseparables les ecologies mediambiental, social i mental (Guattari, 1989). Posant el focus en l&#8217;aire que respirem, l&#8217;aire ja no seria quelcom invisible que queda entre all\u00f2 que veiem. Ser\u00edem ecol\u00f2gics quan respirem sabent que cada hum\u00e0 som un planeta que cont\u00e9 bilions de microorganismes; que l&#8217;aire contaminat t\u00e9 impacte a la salut dels humans i a altres esp\u00e8cies amb les quals tenim relaci\u00f3 simbi\u00f2tica com les abelles; que respirem en una respiraci\u00f3 social, una respiraci\u00f3 col\u00b7lectiva, formada per la xarxa de relacions entre diversos agents, objectes i sensibilitats que es reconeix des de la seva fragilitat i interdepend\u00e8ncia i es valoren m\u00fatuament. Sentir-nos i pensar-nos per actuar en conseq\u00fc\u00e8ncia.<\/p>\n<p>La consci\u00e8ncia que no podem respirar en el sentit m\u00e9s literal i metaf\u00f2ric s&#8217;est\u00e0 estenent globalment. El clam individual \u00e9s ara un clam col\u00b7lectiu politicosocial, ecol\u00f2gic, cultural i art\u00edstic. \u00abNo podem respirar\u00bb s&#8217;est\u00e0 convertint en la frase que defineix m\u00e9s radicalment l&#8217;estat de vulnerabilitat i urg\u00e8ncia global en qu\u00e8 vivim. Achille Mbembe reclama el dret universal a respirar <span class=\"footnote_referrer\"><a role=\"button\" tabindex=\"0\" onclick=\"footnote_moveToReference_47728_1('footnote_plugin_reference_47728_1_4');\" onkeypress=\"footnote_moveToReference_47728_1('footnote_plugin_reference_47728_1_4');\" ><sup id=\"footnote_plugin_tooltip_47728_1_4\" class=\"footnote_plugin_tooltip_text\">[4]<\/sup><\/a><span id=\"footnote_plugin_tooltip_text_47728_1_4\" class=\"footnote_tooltip\">Achille Mbembe, \u00abThe Universal Right to Breath\u00bb <a href=\"https:\/\/a-desk.org\/ca\/magazine\/el-derecho-universal-a-respirar\/\"><span class=\"footnote_url_wrap\">https:\/\/a-desk.org\/ca\/magazine\/el-derecho-universal-a-respirar\/<\/span><\/a><\/span><\/span><script type=\"text\/javascript\"> jQuery('#footnote_plugin_tooltip_47728_1_4').tooltip({ tip: '#footnote_plugin_tooltip_text_47728_1_4', tipClass: 'footnote_tooltip', effect: 'fade', predelay: 0, fadeInSpeed: 200, delay: 400, fadeOutSpeed: 200, position: 'top center', relative: true, offset: [-7, 0], });<\/script>. Maria Arnal canta: &#8220;l&#8217;aire no \u00e9s de ning\u00fa&#8221;.<span class=\"footnote_referrer\"><a role=\"button\" tabindex=\"0\" onclick=\"footnote_moveToReference_47728_1('footnote_plugin_reference_47728_1_5');\" onkeypress=\"footnote_moveToReference_47728_1('footnote_plugin_reference_47728_1_5');\" ><sup id=\"footnote_plugin_tooltip_47728_1_5\" class=\"footnote_plugin_tooltip_text\">[5]<\/sup><\/a><span id=\"footnote_plugin_tooltip_text_47728_1_5\" class=\"footnote_tooltip\">La can\u00e7\u00f3 es la pista 3 de l&#8217;\u00e0lbum Aria de Maria Arnal i John Talabot, creat conjuntament amb motiu del projecto Air\/Aria\/Aire comissariat per Olga Subir\u00f3s presentat a la Biennal de Ven\u00e8cia&nbsp;&#x2026; <span class=\"footnote_tooltip_continue\"  onclick=\"footnote_moveToReference_47728_1('footnote_plugin_reference_47728_1_5');\">Continue reading<\/span><\/span><\/span><script type=\"text\/javascript\"> jQuery('#footnote_plugin_tooltip_47728_1_5').tooltip({ tip: '#footnote_plugin_tooltip_text_47728_1_5', tipClass: 'footnote_tooltip', effect: 'fade', predelay: 0, fadeInSpeed: 200, delay: 400, fadeOutSpeed: 200, position: 'top center', relative: true, offset: [-7, 0], });<\/script><\/p>\n<p>L&#8217;AIRE CANTA: \u00c0RIA.<br \/>\nMaria Arnal<\/p>\n<p>Al centre de l&#8217;aire<br \/>\ns&#8217;hi ofega un dret<br \/>\nel dret de la fulla<br \/>\nel dret de l&#8217;ocell<br \/>\nla br\u00e0nquia profunda<br \/>\nla b\u00e8stia el futur<br \/>\nal centre de l&#8217;aire<br \/>\nhi mor l&#8217;aire pur<\/p>\n<p>de qui \u00e9s el cel?<br \/>\nel cel dins i fora<br \/>\nde qui \u00e9s el cel?<br \/>\nel cel fora i dins<br \/>\nni pell ni frontera<br \/>\npulmons i camins<br \/>\na dins l\u2019atmosfera<br \/>\nl\u2019atmosfera a dins<\/p>\n<p>al centre de l&#8217;aire<br \/>\ns&#8217;hi ofega el futur<br \/>\nel dret de l&#8217;abella<br \/>\nel dret del silur<br \/>\nl\u2019arrel m\u00e9s profunda<br \/>\nla b\u00e8stia el dret<br \/>\nal centre de l&#8217;aire<br \/>\nhi mor l&#8217;aire net<\/p>\n<p>l\u2019aire que jo exhalo<br \/>\ni que inspires tu<br \/>\nl\u2019aire que jo inspiro<br \/>\ni que exhales tu<br \/>\nal centre de l\u2019aire<br \/>\nhi mor l&#8217;aire pur<br \/>\nl\u2019aire que \u00e9s la vida<br \/>\nque no \u00e9s de ning\u00fa<\/p>\n<p>la rosa dels vents<br \/>\namb mil moviments<br \/>\nfa un interrogant<br \/>\na tots els presents<\/p>\n<p>un clavell no pot<br \/>\nfer m\u00e9s del que fa<br \/>\nqu\u00e8 fareu, humans<br \/>\nsense respirar?<\/p>\n<p>al centre de l\u2019aire<br \/>\nhi mor l&#8217;aire pur<br \/>\nl\u2019aire que \u00e9s la vida<br \/>\nque no \u00e9s de ning\u00fa<\/p>\n<p>a l\u2019ull de l\u2019hurac\u00e0<br \/>\ns\u2019hi troba la calma<br \/>\nal centre de l\u2019aire<br \/>\ns\u2019hi ofega el futur<br \/>\ns\u2019hi mor l\u2019aire pur<\/p>\n<p>s\u2019hi mor l\u2019aire pur<\/p>\n<p>de qui \u00e9s el cel?<br \/>\nel cel del present<br \/>\nde qui \u00e9s el cel?<br \/>\nel cel del futur<br \/>\nal centre de l\u2019aire<br \/>\nhi mor l&#8217;aire pur<br \/>\nl\u2019aire que \u00e9s la vida<br \/>\nque no \u00e9s de ning\u00fa<\/p>\n<p>&nbsp;<\/p>\n<p>\u201cEl pes de l\u2019aire\u201d \u00e9s una col\u00b7laboraci\u00f3 amb A*Desk a prop\u00f2sit del projecte sobre l\u2019AIRE que tindr\u00e0 lloc al B\u00f2lit, Centre d\u2019Art Contemporani de Girona des de febrer fins maig 2024 i que est\u00e0 co-comissariat per Olga Subir\u00f3s i Ingrid Guardiola amb la participaci\u00f3 d\u2019Abelardo Gil-Fournier i Job Ramos <span class=\"footnote_referrer\"><a role=\"button\" tabindex=\"0\" onclick=\"footnote_moveToReference_47728_1('footnote_plugin_reference_47728_1_6');\" onkeypress=\"footnote_moveToReference_47728_1('footnote_plugin_reference_47728_1_6');\" ><sup id=\"footnote_plugin_tooltip_47728_1_6\" class=\"footnote_plugin_tooltip_text\">[6]<\/sup><\/a><span id=\"footnote_plugin_tooltip_text_47728_1_6\" class=\"footnote_tooltip\"><sup> Conversa d&#8217;Abelardo Gil-Fournier con Job Ramos, <a href=\"https:\/\/a-desk.org\/cat\/magazine\/aire\/\">Aire<\/a><\/span><\/span><script type=\"text\/javascript\"> jQuery('#footnote_plugin_tooltip_47728_1_6').tooltip({ tip: '#footnote_plugin_tooltip_text_47728_1_6', tipClass: 'footnote_tooltip', effect: 'fade', predelay: 0, fadeInSpeed: 200, delay: 400, fadeOutSpeed: 200, position: 'top center', relative: true, offset: [-7, 0], });<\/script><\/sup>, Fito Conesa<sup><span class=\"footnote_referrer\"><a role=\"button\" tabindex=\"0\" onclick=\"footnote_moveToReference_47728_1('footnote_plugin_reference_47728_1_7');\" onkeypress=\"footnote_moveToReference_47728_1('footnote_plugin_reference_47728_1_7');\" ><sup id=\"footnote_plugin_tooltip_47728_1_7\" class=\"footnote_plugin_tooltip_text\">[7]<\/sup><\/a><span id=\"footnote_plugin_tooltip_text_47728_1_7\" class=\"footnote_tooltip\"><a href=\"https:\/\/a-desk.org\/ca\/magazine\/anoxia\/\">Anoxia<\/a>, 2023 <\/span><\/span><script type=\"text\/javascript\"> jQuery('#footnote_plugin_tooltip_47728_1_7').tooltip({ tip: '#footnote_plugin_tooltip_text_47728_1_7', tipClass: 'footnote_tooltip', effect: 'fade', predelay: 0, fadeInSpeed: 200, delay: 400, fadeOutSpeed: 200, position: 'top center', relative: true, offset: [-7, 0], });<\/script><\/sup>, Mireia c. Saladrigues<sup><span class=\"footnote_referrer\"><a role=\"button\" tabindex=\"0\" onclick=\"footnote_moveToReference_47728_1('footnote_plugin_reference_47728_1_8');\" onkeypress=\"footnote_moveToReference_47728_1('footnote_plugin_reference_47728_1_8');\" ><sup id=\"footnote_plugin_tooltip_47728_1_8\" class=\"footnote_plugin_tooltip_text\">[8]<\/sup><\/a><span id=\"footnote_plugin_tooltip_text_47728_1_8\" class=\"footnote_tooltip\">Mireia c. Saladrigues, <a href=\"https:\/\/a-desk.org\/ca\/magazine\/en-suspension\/\">En suspensi\u00f3<\/a> <\/span><\/span><script type=\"text\/javascript\"> jQuery('#footnote_plugin_tooltip_47728_1_8').tooltip({ tip: '#footnote_plugin_tooltip_text_47728_1_8', tipClass: 'footnote_tooltip', effect: 'fade', predelay: 0, fadeInSpeed: 200, delay: 400, fadeOutSpeed: 200, position: 'top center', relative: true, offset: [-7, 0], });<\/script><\/sup>, Pep Vidal<sup><span class=\"footnote_referrer\"><a role=\"button\" tabindex=\"0\" onclick=\"footnote_moveToReference_47728_1('footnote_plugin_reference_47728_1_9');\" onkeypress=\"footnote_moveToReference_47728_1('footnote_plugin_reference_47728_1_9');\" ><sup id=\"footnote_plugin_tooltip_47728_1_9\" class=\"footnote_plugin_tooltip_text\">[9]<\/sup><\/a><span id=\"footnote_plugin_tooltip_text_47728_1_9\" class=\"footnote_tooltip\">Montse Badia <a href=\"https:\/\/a-desk.org\/ca\/spotlight\/el-aire-que-nos-mantiene-vivos\/\">sobre l&#8217;obra de Pep Vidal<\/a> <\/span><\/span><script type=\"text\/javascript\"> jQuery('#footnote_plugin_tooltip_47728_1_9').tooltip({ tip: '#footnote_plugin_tooltip_text_47728_1_9', tipClass: 'footnote_tooltip', effect: 'fade', predelay: 0, fadeInSpeed: 200, delay: 400, fadeOutSpeed: 200, position: 'top center', relative: true, offset: [-7, 0], });<\/script><\/sup>, i la participaci\u00f3 especial de Maria Arnal i John Talabot<sup><span class=\"footnote_referrer\"><a role=\"button\" tabindex=\"0\" onclick=\"footnote_moveToReference_47728_1('footnote_plugin_reference_47728_1_10');\" onkeypress=\"footnote_moveToReference_47728_1('footnote_plugin_reference_47728_1_10');\" ><sup id=\"footnote_plugin_tooltip_47728_1_10\" class=\"footnote_plugin_tooltip_text\">[10]<\/sup><\/a><span id=\"footnote_plugin_tooltip_text_47728_1_10\" class=\"footnote_tooltip\"><a href=\"https:\/\/www.neo2.com\/maria-arnal-john-talabot\/\">Mar\u00eda Arnal i John Talabot<\/a> <\/span><\/span><script type=\"text\/javascript\"> jQuery('#footnote_plugin_tooltip_47728_1_10').tooltip({ tip: '#footnote_plugin_tooltip_text_47728_1_10', tipClass: 'footnote_tooltip', effect: 'fade', predelay: 0, fadeInSpeed: 200, delay: 400, fadeOutSpeed: 200, position: 'top center', relative: true, offset: [-7, 0], });<\/script><\/sup>.<\/p>\n<p>[Imatge destacada: Micrografia de l&#8217;ala d&#8217;una abella asi\u00e0tica gegant (Apis dorsata) obtinguda amb un microscopi VP compact Zeiss merlin a un augment de 1 kV EHT i 460X. Geetha Thimmegowda et al, doi:<a href=\"doi:10.1073\/pnas.2009074117\">10.1073\/pnas.2009074117<\/a>]<\/p>\n<p><a href=\"#_ftnref4\" name=\"_ftn4\"><\/a><\/p>\n<div class=\"speaker-mute footnotes_reference_container\"> <div class=\"footnote_container_prepare\"><p><span role=\"button\" tabindex=\"0\" class=\"footnote_reference_container_label pointer\" onclick=\"footnote_expand_collapse_reference_container_47728_1();\">&#x202F;<\/span><span role=\"button\" tabindex=\"0\" class=\"footnote_reference_container_collapse_button\" style=\"display: none;\" onclick=\"footnote_expand_collapse_reference_container_47728_1();\">[<a id=\"footnote_reference_container_collapse_button_47728_1\">+<\/a>]<\/span><\/p><\/div> <div id=\"footnote_references_container_47728_1\" style=\"\"><table class=\"footnotes_table footnote-reference-container\"><caption class=\"accessibility\">References<\/caption> <tbody> \r\n\r\n<tr class=\"footnotes_plugin_reference_row\"> <th scope=\"row\" class=\"footnote_plugin_index_combi pointer\"  onclick=\"footnote_moveToAnchor_47728_1('footnote_plugin_tooltip_47728_1_1');\"><a id=\"footnote_plugin_reference_47728_1_1\" class=\"footnote_backlink\"><span class=\"footnote_index_arrow\">&#8593;<\/span>1<\/a><\/th> <td class=\"footnote_plugin_text\"> <a href=\"https:\/\/www.pnas.org\/doi\/10.1073\/pnas.2009074117\"><span class=\"footnote_url_wrap\">https:\/\/www.pnas.org\/doi\/10.1073\/pnas.2009074117<\/span><\/a> <\/td><\/tr>\r\n\r\n<tr class=\"footnotes_plugin_reference_row\"> <th scope=\"row\" class=\"footnote_plugin_index_combi pointer\"  onclick=\"footnote_moveToAnchor_47728_1('footnote_plugin_tooltip_47728_1_2');\"><a id=\"footnote_plugin_reference_47728_1_2\" class=\"footnote_backlink\"><span class=\"footnote_index_arrow\">&#8593;<\/span>2<\/a><\/th> <td class=\"footnote_plugin_text\"> <a href=\"https:\/\/www.pnas.org\/doi\/10.1073\/pnas.1605941113\"><span class=\"footnote_url_wrap\">https:\/\/www.pnas.org\/doi\/10.1073\/pnas.1605941113<\/span><\/a> <\/td><\/tr>\r\n\r\n<tr class=\"footnotes_plugin_reference_row\"> <th scope=\"row\" class=\"footnote_plugin_index_combi pointer\"  onclick=\"footnote_moveToAnchor_47728_1('footnote_plugin_tooltip_47728_1_3');\"><a id=\"footnote_plugin_reference_47728_1_3\" class=\"footnote_backlink\"><span class=\"footnote_index_arrow\">&#8593;<\/span>3<\/a><\/th> <td class=\"footnote_plugin_text\"> <a href=\"https:\/\/www.pnas.org\/doi\/full\/10.1073\/pnas.2000134117\"><span class=\"footnote_url_wrap\">https:\/\/www.pnas.org\/doi\/full\/10.1073\/pnas.2000134117<\/span><\/a> <\/td><\/tr>\r\n\r\n<tr class=\"footnotes_plugin_reference_row\"> <th scope=\"row\" class=\"footnote_plugin_index_combi pointer\"  onclick=\"footnote_moveToAnchor_47728_1('footnote_plugin_tooltip_47728_1_4');\"><a id=\"footnote_plugin_reference_47728_1_4\" class=\"footnote_backlink\"><span class=\"footnote_index_arrow\">&#8593;<\/span>4<\/a><\/th> <td class=\"footnote_plugin_text\">Achille Mbembe, \u00abThe Universal Right to Breath\u00bb <a href=\"https:\/\/a-desk.org\/ca\/magazine\/el-derecho-universal-a-respirar\/\"><span class=\"footnote_url_wrap\">https:\/\/a-desk.org\/ca\/magazine\/el-derecho-universal-a-respirar\/<\/span><\/a><\/td><\/tr>\r\n\r\n<tr class=\"footnotes_plugin_reference_row\"> <th scope=\"row\" class=\"footnote_plugin_index_combi pointer\"  onclick=\"footnote_moveToAnchor_47728_1('footnote_plugin_tooltip_47728_1_5');\"><a id=\"footnote_plugin_reference_47728_1_5\" class=\"footnote_backlink\"><span class=\"footnote_index_arrow\">&#8593;<\/span>5<\/a><\/th> <td class=\"footnote_plugin_text\"> La can\u00e7\u00f3 es la pista 3 de l&#8217;\u00e0lbum Aria de Maria Arnal i John Talabot, creat conjuntament amb motiu del projecto Air\/Aria\/Aire comissariat per Olga Subir\u00f3s presentat a la Biennal de Ven\u00e8cia de 2021: <a href=\"https:\/\/ariamariaarnaljohntalabot.bandcamp.com\/album\/aria\"><span class=\"footnote_url_wrap\">https:\/\/ariamariaarnaljohntalabot.bandcamp.com\/album\/aria<\/span><\/a> <\/td><\/tr>\r\n\r\n<tr class=\"footnotes_plugin_reference_row\"> <th scope=\"row\" class=\"footnote_plugin_index_combi pointer\"  onclick=\"footnote_moveToAnchor_47728_1('footnote_plugin_tooltip_47728_1_6');\"><a id=\"footnote_plugin_reference_47728_1_6\" class=\"footnote_backlink\"><span class=\"footnote_index_arrow\">&#8593;<\/span>6<\/a><\/th> <td class=\"footnote_plugin_text\"><sup> Conversa d&#8217;Abelardo Gil-Fournier con Job Ramos, <a href=\"https:\/\/a-desk.org\/cat\/magazine\/aire\/\">Aire<\/a><\/td><\/tr>\r\n\r\n<tr class=\"footnotes_plugin_reference_row\"> <th scope=\"row\" class=\"footnote_plugin_index_combi pointer\"  onclick=\"footnote_moveToAnchor_47728_1('footnote_plugin_tooltip_47728_1_7');\"><a id=\"footnote_plugin_reference_47728_1_7\" class=\"footnote_backlink\"><span class=\"footnote_index_arrow\">&#8593;<\/span>7<\/a><\/th> <td class=\"footnote_plugin_text\"><a href=\"https:\/\/a-desk.org\/ca\/magazine\/anoxia\/\">Anoxia<\/a>, 2023 <\/td><\/tr>\r\n\r\n<tr class=\"footnotes_plugin_reference_row\"> <th scope=\"row\" class=\"footnote_plugin_index_combi pointer\"  onclick=\"footnote_moveToAnchor_47728_1('footnote_plugin_tooltip_47728_1_8');\"><a id=\"footnote_plugin_reference_47728_1_8\" class=\"footnote_backlink\"><span class=\"footnote_index_arrow\">&#8593;<\/span>8<\/a><\/th> <td class=\"footnote_plugin_text\">Mireia c. Saladrigues, <a href=\"https:\/\/a-desk.org\/ca\/magazine\/en-suspension\/\">En suspensi\u00f3<\/a> <\/td><\/tr>\r\n\r\n<tr class=\"footnotes_plugin_reference_row\"> <th scope=\"row\" class=\"footnote_plugin_index_combi pointer\"  onclick=\"footnote_moveToAnchor_47728_1('footnote_plugin_tooltip_47728_1_9');\"><a id=\"footnote_plugin_reference_47728_1_9\" class=\"footnote_backlink\"><span class=\"footnote_index_arrow\">&#8593;<\/span>9<\/a><\/th> <td class=\"footnote_plugin_text\">Montse Badia <a href=\"https:\/\/a-desk.org\/ca\/spotlight\/el-aire-que-nos-mantiene-vivos\/\">sobre l&#8217;obra de Pep Vidal<\/a> <\/td><\/tr>\r\n\r\n<tr class=\"footnotes_plugin_reference_row\"> <th scope=\"row\" class=\"footnote_plugin_index_combi pointer\"  onclick=\"footnote_moveToAnchor_47728_1('footnote_plugin_tooltip_47728_1_10');\"><a id=\"footnote_plugin_reference_47728_1_10\" class=\"footnote_backlink\"><span class=\"footnote_index_arrow\">&#8593;<\/span>10<\/a><\/th> <td class=\"footnote_plugin_text\"><a href=\"https:\/\/www.neo2.com\/maria-arnal-john-talabot\/\">Mar\u00eda Arnal i John Talabot<\/a> <\/td><\/tr>\r\n\r\n <\/tbody> <\/table> <\/div><\/div><script type=\"text\/javascript\"> function footnote_expand_reference_container_47728_1() { jQuery('#footnote_references_container_47728_1').show(); jQuery('#footnote_reference_container_collapse_button_47728_1').text('\u2212'); } function footnote_collapse_reference_container_47728_1() { jQuery('#footnote_references_container_47728_1').hide(); jQuery('#footnote_reference_container_collapse_button_47728_1').text('+'); } function footnote_expand_collapse_reference_container_47728_1() { if (jQuery('#footnote_references_container_47728_1').is(':hidden')) { footnote_expand_reference_container_47728_1(); } else { footnote_collapse_reference_container_47728_1(); } } function footnote_moveToReference_47728_1(p_str_TargetID) { footnote_expand_reference_container_47728_1(); var l_obj_Target = jQuery('#' + p_str_TargetID); if (l_obj_Target.length) { jQuery( 'html, body' ).delay( 0 ); jQuery('html, body').animate({ scrollTop: l_obj_Target.offset().top - window.innerHeight * 0.2 }, 380); } } function footnote_moveToAnchor_47728_1(p_str_TargetID) { footnote_expand_reference_container_47728_1(); var l_obj_Target = jQuery('#' + p_str_TargetID); if (l_obj_Target.length) { jQuery( 'html, body' ).delay( 0 ); jQuery('html, body').animate({ scrollTop: l_obj_Target.offset().top - window.innerHeight * 0.2 }, 380); } }<\/script>","protected":false},"excerpt":{"rendered":"<p>Un feix d&#8217;electrons interacciona amb la superf\u00edcie d&#8217;una mostra recoberta amb una capa de carboni molt prima que actua com a conductor. L&#8217;intercanvi d&#8217;energia entre el feix d&#8217;electrons i la&#8230;<\/p>\n","protected":false},"author":2829,"featured_media":47717,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_relevanssi_hide_post":"","_relevanssi_hide_content":"","_relevanssi_pin_for_all":"","_relevanssi_pin_keywords":"","_relevanssi_unpin_keywords":"","_relevanssi_related_keywords":"","_relevanssi_related_include_ids":"","_relevanssi_related_exclude_ids":"","_relevanssi_related_no_append":"","_relevanssi_related_not_related":"","_relevanssi_related_posts":"","_relevanssi_noindex_reason":"","footnotes":""},"categories":[6353],"tags":[],"coauthors":[6786],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v22.6 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>El pes de l&#039;aire &#8211; A*Desk<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/a-desk.org\/ca\/magazine\/el-peso-del-aire\/\" \/>\n<meta property=\"og:locale\" content=\"ca_ES\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"El pes de l&#039;aire &#8211; A*Desk\" \/>\n<meta property=\"og:description\" content=\"Un feix d&#8217;electrons interacciona amb la superf\u00edcie d&#8217;una mostra recoberta amb una capa de carboni molt prima que actua com a conductor. 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