1.

Record Nr.

UNINA9910296444803321

Autore

Ferrater Mora Jose <1912-1991>

Titolo

Cuestiones españolas / Jose Ferrater Mora

Pubbl/distr/stampa

El Colegio de México, 1945

[Mexico] : , : El Colegio de Mexico, Centro de Estudios Sociales, , 1945

©1945

ISBN

607-628-449-8

Descrizione fisica

1 online resource (74 pages)

Collana

Jornadas - Centro de Estudios Sociales, Colegio de Mexico ; ; 53

Disciplina

946

Soggetti

HISTORY / Africa / General

ENSAYOS ESPAÑOLES

ESPAÑA

Espagne

Spain kultur- och samhällsliv

Spain

Spain Política Discursos, ensayos, conferencias

Lingua di pubblicazione

Spagnolo

Formato

Materiale a stampa

Livello bibliografico

Monografia

Nota di bibliografia

Includes bibliographical references.

Sommario/riassunto

El ritmo lento con que se han escrito las primeras páginas de este ensayo y el atropello relativo con que a partir de cierto momento se redactaron muestra ya que a habido en el intermedio algún acontecimiento productor de tal censura. En realidad, estás págnas contienen en embrión las ideas de varios estudios. Se trata de orientar a los contemporáneos y a caso a los que les sucedan hacia una mayor claridad sobre si mismos, por lo pronto en el terreno de la acción política



2.

Record Nr.

UNINA9910960019403321

Autore

Davies John Keith

Titolo

Beyond Pluto : exploring the outer limits of the solar system / / John Davies

Pubbl/distr/stampa

Cambridge : , : Cambridge University Press, , 2001

ISBN

1-107-12239-2

1-107-40261-1

0-511-30335-1

0-511-53609-7

0-511-04741-X

1-280-43020-6

0-511-17384-9

0-511-15308-2

9786610430208

Edizione

[1st ed.]

Descrizione fisica

1 online resource (xii, 233 pages) : digital, PDF file(s)

Disciplina

523.2

Soggetti

Kuiper Belt

Lingua di pubblicazione

Inglese

Formato

Materiale a stampa

Livello bibliografico

Monografia

Note generali

Title from publisher's bibliographic system (viewed on 05 Oct 2015).

Nota di contenuto

Prologue -- The edge of the solar system -- The Centaurs -- The mystery of the short-period comets -- Shooting in the dark -- Deeper and deeper -- Sorting out the dynamics -- What are little planets made of? -- Numbers and sizes -- Things that go bump in the dark -- Dust and discs -- Where do we go from here? -- Will we ever get our names right? -- Appendix 1: Dramatis personae -- Appendix 2: Guidelines for minor planet names -- Index.

Sommario/riassunto

This book was originally published in 2001. In the ten years preceding publication, the known solar system more than doubled in size. For the first time in almost two centuries an entirely new population of planetary objects was found. This 'Kuiper Belt' of minor planets beyond Neptune revolutionised our understanding of the solar system's formation and finally explained the origin of the enigmatic outer planet Pluto. This is the fascinating story of how theoretical physicists decided



that there must be a population of unknown bodies beyond Neptune and how a small band of astronomers set out to find them. What they discovered was a family of ancient planetesimals whose orbits and physical properties were far more complicated than anyone expected. We follow the story of this discovery, and see how astronomers, theoretical physicists and one incredibly dedicated amateur observer came together to explore the frozen boundary of the solar system.