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Revista Integral Sans titre-41 20/03/2014 14:21 Sociedade PortugueSa de FíSica / VOL. 37 - N.º 2 / 2014 / Publicação Trimestral / €5,00 A origem da vida na Terra: contribuiçãoendógena A origemdavidanaTerra: e exógenademoléculaspré-bióticas A nova astronomia comALMA A novaastronomia Para os físicos e amigos da física. da WWW.amigos e físicos os Para gazetadefisica.spf.pt TABELA DE PUBLICIDADE 2014 índice Para os físicos e amigos da física. V O L . 3 7 - n . 2 W W W. GA ZE TA D EFISICA.SPF. P T índice N. 0164 Gazeta de A) verso da capa B) destacável/folha VISITE A LOJA SPM EM WWW.SPM.PT atemática Para os físicos e amigos da física. Publicação quadrimestral da SOCIEDADE PORTUGUESA DE MATEMÁTICA Ano LXXII | Jul. 2011 | 4,20€ 8 8 8 (";&5"%&'*4*$"41'15 artigo geral crónicas 2 27 a nova astronomia com ALMA Nós e os extraterrestres 5,00 € José Afonso Carlos Fiolhais Publicação Trimestral Trimestral Publicação NOVIDADE! 2010 2010 artigo geral gazeta ao laboratório DBMMGPSQBQFST 7 28 VOL. 33 - Nº 3 3 Nº - 33 VOL. a origem da vida na terra: construção de recetores rádio contribuição endógena e exógena como introdução à Física das C) verso da contracapa D) contracapa 2010 de moléculas pré-bióticas Telecomunicações - parte II " (B[FUB EF 'TJDB DPOWJEB PT TFVT MFJUPSFT B TVCNFUFSFN QSPQPTUBT Zita Martins Alexandre Aibéo, Nuno André, Ricardo Gama BCTUSBDUT EFBSUJHPTOPTTFHVJOUFTUFNBT Para os físicos e amigos da física. SOCIEDADE PORTUGUESA DE FÍSICA DE PORTUGUESA SOCIEDADE Cirurgia Plástica 8 8 8 (";&5"%&'*4*$"41'15 'TJDBBQMJDBEB CJPMPHJBFNFEJDJOB FODFSSBEPBEF+VOIP artigo geral livros e multimédia 5,00 € 12 33 -BTFSTFBQMJDBFTFNDPNFNPSBPEPBOJWFSTSJP Modelando a poluição luminosa: História da ciência em Portugal EBJOWFOPEPMBTFS do Ponto de Vista BUEF4FUFNCSP 0000000 a equação de Walker e as suas por Carlos Fiolhais Publicação Trimestral Trimestral Publicação )JTUSJBFQSPUBHPOJTUBTEBGTJDBFN1PSUVHBMOPTD99 000000000000000000000000000 2011 2011 000000000000000000000000000 consequências José Braga BUEF%F[FNCSP Guilherme de Almeida Matemático " (B[FUB EF 'TJDB QVCMJDB BSUJHPT DPN OEPMF EF EJWVMHBP DPOTJEFSBEPT EF JOUFSFTTF QBSB VOL. 34 - Nº 1 1 Nº - 34 VOL. FTUVEBOUFT QSPGFTTPSFTFJOWFTUJHBEPSFTFN'TJDB0TBSUJHPTQPEFNUFSOEPMFUFSJDB FYQFSJNFOUBM E) página dupla F) página inteira PVBQMJDBEB WJTBOEPQSPNPWFSPJOUFSFTTFEPTKPWFOTQFMPFTUVEPEB'TJDB PJOUFSDNCJPEFJEFJBT GUEORGUI SMIRNOV e VERA Na SÁ próxima FFYQFSJODJBTQSPGJTTJPOBJTFOUSFPTRVFFOTJOBN JOWFTUJHBNPVBQMJDBNB'TJDB sala de professores/alunos .BJTJOGPSNBFTFNXXXHB[FUBEFGJTJDBTQGQU 36 física sem fronteiras Petnica Gazeta de Física Para os físicos e amigos da física. vamos espreitar o WWW. GAZETADEFISICA.SPF.PT 16 Peter galison: o homem de Marija Vranic Ano Internacional daG) FÍSICA DE PORTUGUESA SOCIEDADE inumeráveis subculturas 5,00 ŝ coluna ou/ Manuel Baroso Xavier Astronomia 40 Notícias A Matemática do ½ página Publicação Trimestral Trimestral Publicação / física e sociedade 2009 / 1 1 Sistema Cardiovascular o 22 observatório do instituto dom Edição especial: Lasers VOL. 32 - N. - 32 VOL. / Os 50 anos do laser em Portugal Luiz: um século e meio de história ALEXANDRA MOURA e ADÉLIA SEQUEIRA ICA S O que sabemos sobre Fukushima FÍ E Josep Batlló, Miguel Brito, Fernando Alberto, Cristina Catita, Susana Custódio, D A S Cristina Domingues, Ana Romão, Antónia Valente H) A imagem, obtida com o Telescópio Espacial Hubble no início de Abril, representa um ¼ páginaPORTUGUE SOCIEDADE grupo de galáxias chamado Arp 274, também conhecido como NGC 5679. Durante 2009, em comemoração do Ano Internacional da ou faixa O Asno, o TriânguloAstronomia, o Space Telescope Science Institute lançou o concurso “Você decide”, em que pediu ao público que elegesse um objecto espacial para ser fotografado pelo Hubble. O sistema Arp 274 foi o vencedor, com metade dos cerca de 140000 votos, Iluminar as interacções fortes mostrando de forma eloquente a preferência e uma Antiga Refutaçãodos votantes. Terapia do cancro com protões: Arp 274 é um sistema de três galáxias que se apresentam parcialmente sobrepostas na passado, presente e futuro imagem, embora na realidade possam estar a Aos preços da tabela acresce o IVA à taxa em vigor distâncias algo diferentes. Duas das galáxias do Postulado Quintoexibem uma forma espiral praticamente intacta. A terceira galáxia (à esquerda) é Colidindo Buracos Negros mais compacta,Posição mas apresenta indícios de Preço (Euros) estrelas em formação. Nessa galáxia e na da direita podemos distinguir pequenos pontos brilhantes azulados ao longo dos braços, Ímpar Par Descontos de quantidade: dos “Elementos”que correspondem a zonas onde se formam novas estrelas a uma taxa elevada. A galáxia do meio é a maiorA do grupo, surgindo como 900 2X: –20% 3X: –25% 4X: –30% uma galáxia espiral, eventualmente barrada. Todo o sistema está a uma distância de 400 BERNARDO MOTA milhões de anos-luz da Terra, na constelação Virgem. B 900 (c) Imagem STCScI/NASA 2009 900 Tiragem anual 2013: D 1200 5400 exemplares Publicação Trimestral Subsidiada E 1000 F 600 550 Contactos: G 400 350 Sociedade Portuguesa de Física H 250 200 Av. República 45 3º esq. · 1050-187 Lisboa banner website 100/mês Tel: 351 21 799 36 65 · [email protected] Para os físicos e amigos da física. www.gazetadefisica.spf.pt 1 Editorial editorialeditorial VOL.VOL. 30 37 - -n.2/3 n. 2 Se me pedissem para nomear uma única grande um tema científico do qual se esperam grandes desenvolvi- questão científica do nosso tempo, provavelmente mentos nos próximos tempos. escolheria a seguinte: como surgiu a vida na Terra? Por cá, entretanto, aproxima-se a FÍSICA 2014, reunião e Ou, por que não ser mais arrojado: como surgiu a celebração bienal organizada pela Sociedade Portugue- vida no Universo? Porque perceber este mecanismo sa de Física, que este ano congrega a 19.ª Conferência traz consigo a resposta a muitas outras questões, Nacional de Física e o 24.º Encontro Ibérico para o Ensino cada uma delas capaz de alterar radicalmente o da Física. Sinto-me especialmente feliz porque esta FÍSICA nosso conhecimento, a nossa cultura e a nossa vai ter lugar em minha “casa” – o Instituto Superior Técnico, percepção do papel que ocupamos no grande em Lisboa. A Comissão Organizadora tem estado a traba- esquema das coisas. E a verdade é que vivemos lhar com entusiasmo para que a Conferência e o Encontro tempos excitantes, em que a ciência começa a ter possam ser um sucesso. O programa científico promete, as ferramentas para poder abordar esta pergunta de oficinas de formação estarão repletas e esperam-se cerca forma activa. de 200 participantes de todo o país. É esta questão fundamental que, de certo modo, Um dos pontos altos será a sessão pública com a presen- liga os dois artigos convidados desta edição da Ga- ça do presidente da Sociedade Europeia de Física, John zeta. No primeiro, José Afonso conta-nos como o Dudley, do anterior Ministro da Ciência, Tecnologia e Ensino novo telescópio ALMA nos permitirá espreitar o Uni- Superior, Mariano Gago, e do historiador de ciência Kostas verso de uma forma até agora inédita – entre outras Gavroglu. Esta sessão servirá também para o lançamento coisas, como será utilizado para estudar a química oficial do 2015 Ano Internacional da Luz em Portugal, ini- de moléculas complexas em regiões longínquas do ciativa que acompanharemos aqui na Gazeta com especial espaço interestelar, numa tentativa de vislumbrar atenção, e cujo poster podem já encontrar na contracapa a formação dos blocos básicos que deram origem desta edição. à vida. No segundo artigo, Zita Martins analisa se estas moléculas precursoras da vida terão sido Por fim, é com grande prazer que informo que, a partir sintetizados no nosso planeta, ou se vieram das desta edição, a Gazeta de Física passa a contar com a profundezas do cosmos a bordo de corpos como colaboração de uma Comissão Editorial e de Correspon- cometas, asteróides e meteoritos. dentes Regionais. A Comissão Editorial, além de incluir os dois anteriores directores editoriais, representa cada uma Apesar da diferente magnitude das ferramentas das Divisões da SPF, e os Correspondentes estão ligados a utilizadas – no primeiro caso utilizando uma mega- cada uma das delegações regionais. Quero aproveitar para infraestrutura científica, na qual Portugal colabora agradecer a cada um dos membros destas duas novas através da sua participação no ESO, no segundo equipas por terem aceite este convite, e tenho a certeza caso fazendo experiências numa bancada de labo- de que sua colaboração nos permitirá levar até aos leitores ratório – ambos os artigos ilustram como a chave uma Gazeta de Física cada vez melhor. da génese da vida deixou de ser uma questão de natureza meramente especulativa (para já não men- Gonçalo Figueira Por decisão pessoal, o autor do texto não escreve segundo o novo cionar sequer filosófica ou religiosa), para se tornar Acordo Ortográfico. Ficha Técnica Colaboraram também neste número Correspondentes Alexandre Aibéo, Ana Romão, Antónia Valente, Carla Quintão, Joaquim Moreira - Delegação Norte Propriedade Cristina Catita, Cristina Domingues, Fernando Alberto, Guilherme Rui Travasso - Delegação Centro de Almeida, José Afonso, José Braga, Josep Batlló, Manuel Pedro Abreu - Delegação Sul e Ilhas Sociedade Portuguesa de Física Baroso Xavier, Marija Vranic, Miguel Brito, Nuno André, Pedro Av. da República, 45 – 3º Esq. Design / Produção Gráfica Abreu, Ricardo Gama, Susana Custódio, Zita Martins Dossier, Comunicação e Imagem 1050-187 Lisboa www.dossier.com.pt Telefone: 217 993 665 Comissão editorial NIPC 501094628 Teresa Peña - Presidente
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