Beyond the Galaxy: How Humanity Looked Beyond Our Milky Way by Ethan Siegel

By Ethan Siegel

A glance up on the evening sky finds a treasury of wonders. Even to the bare eye, the Moon, stars, planets, the Milky manner or even a couple of big name clusters and nebulae remove darkness from the heavens. For millennia, people struggled to make feel of what is available in the market within the Universe, from all we will see to that which lies past the bounds of even our strongest telescopes. Beyond the Galaxy strains our trip from an old, Earth-centered Universe all of the method to our sleek, twenty first century knowing of the cosmos. referring to not just what we all know but additionally how we all know it, Ethan Siegel takes us to the very frontiers of recent astrophysics and cosmology, from the beginning of our Universe to its final destiny, and every thing in between.

Readership: common public attracted to astronomy, astrophysics and/or cosmology.

Show description

Read Online or Download Beyond the Galaxy: How Humanity Looked Beyond Our Milky Way and Discovered the Entire Universe PDF

Best cosmology books

Onto-ethologies: The Animal Environments of Uexkull, Heidegger, Merleau-Ponty, and Deleuze

German biologist Jakob von Uexküll considering how an animal, via its behavioral family members, either affects and is impacted through its personal targeted surroundings. Onto-Ethologies lines the impact of Uexküll’s principles at the considered Martin Heidegger, Maurice Merleau-Ponty, and Gilles Deleuze, as they discover how animal habit should be acknowledged to approximate, but in addition vary from, human habit.

In Search of Nature

"Perhaps greater than the other scientist of our century, Edward O. Wilson has scrutinized animals of their ordinary settings, tweezing out the dynamics in their social association, their courting with their environments, and their habit, not just for what it tells us concerning the animals themselves, yet for what it may well let us know approximately human nature and our personal habit.

The B−L Phase Transition: Implications for Cosmology and Neutrinos (Springer Theses)

A number of of the very foundations of the cosmological ordinary version — the baryon asymmetry of the universe, darkish subject, and the starting place of the new monstrous bang itself — nonetheless demand an evidence from the viewpoint of primary physics. This work advocates one fascinating probability for a constant cosmology that fills within the theoretical gaps whereas being totally according to the observational information.

Unity of Forces in the Universe (2 Volume Set) (v. 2)

We're now nearer than ever to the elemental aim of physics of realizing all actual phenomena because the inevitable outcomes of few basic ideas. The grand unified conception of the robust, vulnerable and electromagnetic interactions has, between different issues, defined the quantization of cost, made up our minds the importance of the impartial present, and had dramatic influence on cosmology.

Extra resources for Beyond the Galaxy: How Humanity Looked Beyond Our Milky Way and Discovered the Entire Universe

Sample text

But now imagine that there is an outer world orbiting the Sun even more slowly, and Uranus begins to approach it. Instead of Newton’s law of gravitation being a problem, that very law could instead be the solution, as approaching another rather large mass would cause a small gravitational attraction between the two. If the more remote planet were ahead of Uranus in its orbit, Uranus would be accelerated in its current direction of motion, causing it to temporarily move faster than the predictions of Kepler’s 2nd law!

In many ways, the discovery of radioactivity paved the way for the discovery of mass-energy equivalence, and E = mc2. Image credit: E. 5. the eactants and products, were identical. But in the case of radioactive decays, the products always weighed slightly less than the reactants, a sign that something was different from our best current understanding (Fig. 23). In addition, although it had been experimentally established that the speed of light in a vacuum was finite, it had always been assumed that light, like all other waves, needed a medium to travel through.

For one, just like the Moon, planets do not appear to twinkle as stars do. If you see a point of light shining constantly in the sky, not twinkling at all like the points surrounding it, it is almost a certainty you are staring at one of the five naked-eye planets in our Solar System. Furthermore, just as the Moon moves around the Earth in a counterclockwise fashion as viewed from the North Pole, and hence migrates an extra 12° eastward relative to its position the prior day, the planets generally appear to wander towards the east as well relative to their positions the prior night.

Download PDF sample

Rated 4.35 of 5 – based on 29 votes