Free electronics book download Dark Matter and Dark Energy: The Hidden 95% of the Universe

Dark Matter and Dark Energy: The Hidden 95% of the Universe by Brian Clegg

• Dark Matter and Dark Energy: The Hidden 95% of the Universe
• Brian Clegg
• Page: 176
• Format: pdf, ePub, mobi, fb2
• ISBN: 9781785785504
• Publisher: Icon Books, Ltd. UK

Download eBook

Free electronics book download Dark Matter and Dark Energy: The Hidden 95% of the Universe

Overview

All the matter and light we can see in the universe makes up a trivial 5 per cent of everything. The rest is hidden. 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 like clay off a potter’s wheel, but something concealed holds them together. This ‘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, was pushing it to expand faster and faster. Across the universe, this requires enough energy that the equivalent mass would be nearly 14 times greater than all the known material in existence. With dark matter and dark energy making up 95 per cent of reality, cosmologists have uncovered the biggest puzzle that science has ever faced.

More eBooks: Books to download on ipad 2 Dirty link, Pdf ebook downloads for free My Hope For Tomorrow (English literature) read pdf, Free ebooks downloads for mp3 The Oddmire, Book 2: The Unready Queen by William Ritter link, Free english pdf books download Manhattan Billionaire - Für immer nur du download link, Ebook download free for ipad Accion y meditacion: Cambiarse a si mismo para cambiar el mundo 9788499884301 FB2 PDB CHM in English download pdf, Free download of ebooks pdf format Harlequin Special Edition July 2020 - Box Set 1 of 2 in English download pdf, Full text book downloads The Lazarus Files: A Cold Case Investigation read pdf, Ebook for Dummies télécharger gratuitement Piscicultures du monde - Aujourd'hui et demain in French 9782356715869 PDB RTF FB2 par Jérôme Lazard here,