{epub download} 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

Dark-Matter-and-Dark-Energy.pdf
ISBN: 9781785785696 | 176 pages | 5 Mb

• Dark Matter and Dark Energy: The Hidden 95% of the Universe
• Brian Clegg
• Page: 176
• Format: pdf, ePub, fb2, mobi
• ISBN: 9781785785696
• Publisher: Icon Books, Ltd. UK

Download Dark Matter and Dark Energy: The Hidden 95% of the Universe

Free electronics pdf books download Dark Matter and Dark Energy: The Hidden 95% of the Universe PDB RTF by Brian Clegg 9781785785696

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. 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.

Download more ebooks:
Canzone di Guerra by Dasa Drndic, Celia Hawkesworth on Audiobook New
DOWNLOAD [PDF] {EPUB} Riverman: An American Odyssey by Ben McGrath
Online Read Ebook The TB12 Method: How to Do What You Love, Better and for Longer by Tom Brady
Not Your Child by Lis Angus on Iphone New Format
DOWNLOAD [PDF] {EPUB} Perfectly Imperfect Mira by Faith Pray
[Pdf/ePub] Midnight at Malabar House by download ebook