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
Free download books greek Dark Matter and Dark Energy: The Hidden 95% of the Universe MOBI 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:
[PDF] Chilling Effect download
[PDF/Kindle] The Kissing Tree: Four Novellas Rooted in Timeless Love by Karen Witemeyer, Regina Jennings, Amanda Dykes, Nicole Deese
DOWNLOADS Histoire de l'Angleterre
BRAT FARRAR (OBL 5: OXFORD BOOKWORMS LIBRARY) leer epub gratis
CLAUS Y LUCAS leer el libro
Download PDF Catfishing on CatNet
[Descargar pdf] CUANDO LEAS ESTO YO YA ESTARE MUERTA
{pdf download} La fin de l'individu - Voyage d'un philosophe au pays de l'intelligence artificielle
DOWNLOAD [PDF] {EPUB} Springtime: A Ghost Story
[Kindle] LLANTO DE LA TIERRA BALDIA descargar gratis
0コメント