The fascination of relativity in a free downloadable pdf book.

Travel near the speed of light, explore the twin paradox, black holes, the big bang, the history of the universe, curved space, gravitational waves, the jets of the Milky Way and many other captivating topics!

 Free download of volume II : RELATIVITY and COSMOLOGY       

Enjoy the most extreme motion in nature with embedded colour films - even one of a moving light pulse! - and with a large number of colour images. Have fun with many captivating riddles and curiosities. Be fascinated by special relativity, general relativity, Albert Einstein and cosmology. In this popular book, mathematics is reduced to the bare minimum. The pdf book is downloaded over 40 000 times per year; it guarantees to be captivating and surprising on every page.

First, the book introduces special relativity in a simple way.

Enjoy the puzzles and surprises and look at the everyday world with new eyes! Challenge the arguments and experiments for an invariant speed limit in nature. Be captivated by time dilation, the twins paradox, length contraction, aberration, mass-energy equivalence and the existence of horizons. Learn about the dawdling principle of special relativity. Read about Einstein, his passion, his achievements and his failures.

Then, the book introduces general relativity and cosmology in the simplest way known so far.

Learn about gravitational waves, horizons, the origin of the universe, and astrophysics! Challenge the arguments for an invariant maximum force and power! Explore all the paradoxes! (See also the dedicated page on maximum force.)

Understand the darkness of the night sky, space curvature, black holes and gravitational waves. Enjoy the basics of modern cosmology, together with many images of what is observed across the universe. Be fascinated by the observation of the stars orbiting the centre of the Milky Way, the recent discovery of galactic bubbles, and by collisions of black holes and neutron stars. Enjoy the maps of the universe and the various types of stars seen in the sky. Read about the origin of the universe and about the details of the big bang. Relativity is a fascinating adventure!

Get the printed volume from Amazon (in colour or in black & white).

Download volume II	RELATIVITY and COSMOLOGY
1	Maximum speed, observers at rest, and motion of light	14
2	Relativistic mechanics	59
3	Special relativity in four sentences	95
4	Simple general relativity: gravitation, maximum speed and maximum force	97
5	How maximum speed changes space, time and gravity	124
6	Open orbits, bent light and wobbling vacuum	147
7	From curvature to motion	170
8	Why can we see the stars? - Motion in the universe	194
9	Black holes - falling forever	240
10	Does space differ from time?	258
11	General relativity in a nutshell - a summary for the layman	265
Appendix A	Units, measurements and constants	272

 
Help to make this the best available text on relativity and cosmology; send your improvements and suggestions to christoph@motionmountain.net. And enjoy the reading!