Dark Matter and Dark Energy

Artikelnummer: sg9781785785504

Kategorie: Tier und Natur


14,00 €

inkl. 5% USt. ,

Lieferzeit: 15 - 16 Werktage

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All the matter and light we can see in the universe makes up a trivial 5 per cent of everything. The rest is hidden. This could be the biggest puzzle that science has ever faced.

Since the 1970s, astronomers have been aware that galaxies have far too little matter in them to account for the way they spin around: they should fly apart, but something concealed holds them together. That 'something' is dark matter - invisible material in five times the quantity of the familiar stuff of stars and planets.

By the 1990s we also knew that the expansion of the universe was accelerating. Something, named dark energy, is pushing it to expand faster and faster. Across the universe, this requires enough energy that the equivalent mass would be nearly fourteen times greater than all the visible material in existence.

Brian Clegg explains this major conundrum in modern science and looks at how scientists are beginning to find solutions to it. 


Autor: Brian Clegg
Seitenzahl: 162
Verlag: Tiptree Book Service
Sprache: Englisch
Format: Taschenbuch
ISBN: 9781785785504
Veröffentlichungsdatum: 20190808
Produktnummer Verlag: 3279
Lieferinfo: Bestellware: Die Ware ist beim Lieferant in Schweden nicht vorrätig.
Die Bearbeitungszeit wird sich um einige Tage verlängern.
Bitte rechnen Sie mit 15-16 Tagen Lieferzeit.
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Gewicht: 190 gr
Gewicht_attribut: 190 gr