Infinito in ogni direzione Le origini della vita,la scienza by Freeman Dyson

By Freeman Dyson

«Il titolo Infinito in ogni direzione ha due significati. Allude alle illimitate possibilità dell’universo, che esso sviluppa prendendo coscienza di se stesso attraverso l’azione della vita e dell’intelligenza. Ma si riferisce anche alle enormi responsabilità dell’umanità come custode della vita su un piccolo pianeta.» Così Freeman J. Dyson definisce i punti di riferimento del suo discorso sulla scienza, che mette costantemente a confronto i risultati della ricerca più aggiornata in campo fisico, astronomico, biologico con gli interrogativi più stringenti dell’etica e della politica. Quali sono le strade che los angeles scienza contemporanea esplora nella sua indagine sulle origini della vita e sulla sua evoluzione? Quali i dilemmi cui portano i risultati della ricerca? Quali le scelte necessarie perché le raffinate tecnologie prodotte dal progresso scientifico vengano usate according to il progresso dell’umanità e non in keeping with los angeles sua distruzione? A questo intreccio di temi di appassionante attualità e di domande rivolte al futuro, Freeman Dyson porta il suo illuminante e inventivo contributo: una riflessione che lega los angeles scienza alla filosofia, il gusto della scoperta all’attenzione costante alle componenti spirituali del pensiero e della vita umana.

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Huang, Journal of Alloys and Compounds Vol. 475 (2009), p. 488. [3] A. Z. Subramanian, C. J. Oton, J. S. Wilkinson, and R. Greef, Journal of Luminescence Vol. 129 (2009), p. 812. [4] M. K. Singh, G. Fusegi, K. Kano, J. P. Bange, K. Miura and O. Hanaizumi, IEICE Electronics Express Vol. 6 (2009), p. 1676. Key Engineering Materials Vol. 459 37 [5] K. Miura, H. Miyazaki, and O. Hanaizumi, IEICE Trans. , Vol. E91-C (2008), p. 1669. [6] JCPDS No. 00-025-0922, PDF2, International center for diffraction data: Newton square, PA.

J. Wu, B. Houng, and B. Huang, Journal of Alloys and Compounds Vol. 475 (2009), p. 488. [3] A. Z. Subramanian, C. J. Oton, J. S. Wilkinson, and R. Greef, Journal of Luminescence Vol. 129 (2009), p. 812. [4] M. K. Singh, G. Fusegi, K. Kano, J. P. Bange, K. Miura and O. Hanaizumi, IEICE Electronics Express Vol. 6 (2009), p. 1676. Key Engineering Materials Vol. 459 37 [5] K. Miura, H. Miyazaki, and O. Hanaizumi, IEICE Trans. , Vol. E91-C (2008), p. 1669. [6] JCPDS No. 00-025-0922, PDF2, International center for diffraction data: Newton square, PA.

Takagi, K. Nomura, H. Ohta, H. Yanagi, T. Kamiya, M. Hirano, H. Hosono, Thin Solid Films 486 (2005) 38. [8] I. Hamberg, C. G. Granqvist, K. F. Berggren, B. E. Sernelius, L. Engstöm, Phys. Rev. B 30 (1984) 3240. [9] T. Kamiya, K. Nomura, M. Hirano, H. hosono, Phys. Stat. Sol. (a) 5 (2008) 3098. Key Engineering Materials Vol. jp Keywords: Phase change memory, Crystallization rate, Amorphous chalcogenide Abstract. Crystallization behaviors of dc sputtered Ge2Sb2Te5 films were studied by X-ray diffraction and transient optical transmittance.

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