Download A Universe from Nothing: Why There is Something Rather than by Lawrence M. Krauss PDF

By Lawrence M. Krauss

Author note: Afterword via Richard Dawkins

Bestselling writer and acclaimed physicist Lawrence Krauss bargains a paradigm-shifting view of ways every little thing that exists got here to be within the first place.

"Where did the universe come from? What used to be there prior to it? what's going to the long run carry? and eventually, why is there whatever instead of nothing?"

One of the few fashionable scientists this day to have crossed the chasm among technological know-how and pop culture, Krauss describes the staggeringly attractive experimental observations and mind-bending new theories that reveal not just can whatever come up from not anything, whatever will consistently come up from not anything. With a brand new preface concerning the value of the invention of the Higgs particle, A Universe from not anything makes use of Krauss's attribute wry humor and beautifully transparent motives to take us again to the start of the start, offering the newest proof for a way our universe evolved—and the consequences for a way it's going to end.

Provocative, hard, and delightfully readable, this can be a game-changing examine the main easy underpinning of life and a strong antidote to superseded philosophical, spiritual, and clinical considering.

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Extra resources for A Universe from Nothing: Why There is Something Rather than Nothing

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5 billion years ago. Before that time, there were many planetesimals striking the inner and outer planets, the 37 TIGHTEN THE BELT Table 1. 0000001 (estimated) planets gaining in mass quickly (geologically speaking) as they swept up the asteroidlike debris. Some collided with other planetesimals; others slammed into planets and satellites, breaking through weak cracks in the forming crusts or icy surfaces (see figures 1, 2, and 3). Not all the flotsam and jetsam was taken up by the larger or smaller bodies of the solar system.

The close encounters caused the asteroids to increase their velocities and even alter their orbits so they could not form a planet. Such chaos within the belt increased the number of collisions between themselves and perhaps a few of the planetesimals that caused the problem in the first place. Another plausible theory again involves massive Jupiter. Instead of coalescing into a planet, the perturbation of Jupiter's gravitational field alone tugged at the bodies torming in the belt, not allowing the objects to form into a planetary body.

The sky was filled with early versions of the asteroids-icy and rocky bodies that formed from the solar nebula, ranging in size from dust particles to large chunks hundreds of kilometers in diameter called planetesimals. Some of the masses became progressively larger on their way to becoming the protoplanets, the beginnings of today's planets. This occurred through adhesion, as the random motion of the particles in the condensing cloud caused the particles to collide and adhere together; and later, through the gravitational pull of the larger masses on the smaller pieces, caused the objects to collide and adhere-growing even larger as they attracted the smaller debris of the solar system.

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