Physics Cosmology

In Newton’s view, all objects exert a force that attracts other objects. That universal law of gravitation worked pretty well for predicting the motion of planets as well as objects on Earth and it's still used, for example, when making the calculations for a rocket launch. But Newton's view of gravity didn't work for some things, like Mercury’s peculiar orbit around the sun. The orbits of planets shift over time, and Mercury’s orbit shifted faster than Newton predicted. Einstein’s idea was that gravity is not a force, but it is really an effect caused by the curvature of space and ...

Everywhere light goes, It has found that darkness is already there. Darkness is the natural state of the universe. For a star to be born, it takes an astounding number of possibilities to become a reality. From this unlikely alignment, we now have trillions of stars! Thankfully stars would progress to give us light, life, and an observable universe. No one knows how many stars exist, but we will tour a handful of the most famous in our known universe. Sit back and enjoy the world of outer space that spreads before you. Each constellation and luminary has a story that you won’t want to miss!

It has been a long time to reconcile quantum physics and general relativity. To date, no globally accepted theory has been proposed to explain all physical observations save for the theory herein presented. The current understanding of gravity is based on Albert Einstein's general theory of relativity, which incorporates his theory of special relativity and deeply modifies the understanding of concepts like time and space. Within GR, gravity has two possible interpretations: a field one and a geometric one. According to the latter, that has become the prevalent one, gravity is due to the ...

One of the biggest questions Stephen Hawking tried to answer in his extraordinary life was how the universe could have created conditions so perfectly hospitable to life. But his famous theory on the Big Bang ran into a crisis when the equations predicted a multiverse - countless different universes, most of which were too bizarre to support life. Holed away in the physics department at Cambridge, Stephen Hawking and his collaborator Thomas Hertog worked for twenty years on a new theory of the cosmos.

The universe should be fun, and you’re about to discover an audiobook that understands that, weaving humor and wit into every minute so that you not only understand what you’re listening to, but enjoy the whole process.

A unique blend of literary experimentation and science popularization, this delightful book is a perfect gift for any aspiring astronomer. The Edge of the Sky tells the story of the universe on a human scale, and the result is out of this world.

The science behind the debate raging in modern physics over the disconcerting and uncomfortable realization that just maybe there is, as astronomer Fred Hoyle put it, some sort of "superintellect that has monkeyed with the physics". Written with the non-scientist in mind, this exploration of the big bang, Schroedinger's cat, the chaos of 9/11, the complexity of the mimic octopus and the blister beetle, and the strong anthropic principle is accessible to anyone bright enough to be interested.

According to some theoretical physicists, the universe exists by a long series of accidental and fortuitous events. When we examine the scientific evidence of our universe, we find that it began when nothing existed. Upon the commencement of our universe, precise events took place at specific moments of Planck Time, in exact balance with each other, to exact a specific outcome. When we build a house, the same process ensues. We have an idea. We draft a plan. We engineer the plan so that we will know ahead of time whether the house can be built by a specific procedure. We begin to build and ...

In 2000, Martin Bojowald, then a 27-year-old post-doc at Pennsylvania State University, used a relatively new theory called loop quantum gravity - a cunning combination of Einstein’s theory of gravity with quantum mechanics - to create a simple model of the Universe. Loop quantum cosmology was born, and with it, a theory that managed to do something even Einstein’s general theory of relativity had failed to do - illuminate the very birth of the Universe.

Is there such a thing as a fundamental reality, something which was around before our universe came into existence and which will still remain when all matter, time, and space itself ultimately disappear? Something fundamental which, in turn, can make space and time and matter arise from seemingly nothing? Under most cosmological and physical models, the last known remnants of reality are the disembodied laws of mathematics - beyond which it is extremely difficult to probe further.

Could there be a civilisation on a mote of dust? How much of your fate have you made? Who cleans the universe? Through more than 50 Koans - pleasingly paradoxical vignettes following the ancient Zen tradition - leading physicist Anthony Aguirre takes the listener across the world from Japan to Italy, and through ideas spanning the age, breadth and depth of the Universe. Using these beguiling Koans and a flair for explaining complex science, Aguirre covers cosmic questions that scientific giants from Aristotle to Galileo to Heisenberg have grappled with.

A wise, very old, strongly clairvoyant lady leads us on a fictional journey through an imaginary land that symbolizes the levels of conscious of the mind of Homo sapiens. Perhaps there are many universes. Perhaps there is an unlimited number of virtual realities.

In this brilliant exploration of our cosmic environment, the renowned particle physicist and New York Times best-selling author of Warped Passages and Knocking on Heaven's Door uses her research into dark matter to illuminate the startling connections between the farthest reaches of space and life here on Earth.

Do we really understand what gravity is? Taouil continues where Einstein left off, expanding on the theory of general relativity in a ground-breaking new concept about gravity and what it really is. His ideas are profound, and the implications can change the world of physics. The audiobook is easy to hear, and gives a step-by-step historical background to the science behind his observations that is both powerful and fascinating.

The possibility of life elsewhere in the cosmos is one of the most profound subjects that human beings can ponder. Astrophysicist Andrew May gives an expert overview of our current state of knowledge, looking at how life started on Earth, the tell-tale ‘signatures’ it produces and how such signatures might be detected elsewhere in the solar system or on the many ‘exoplanets’ now being discovered by the Kepler and TESS missions.

Nearly 60 years ago, Nobel Prize-winners Arno Penzias and Robert Wilson stumbled across a mysterious hiss of faint radio static that was interfering with their observations. They had found the key to unravelling the story of the Big Bang and the origin of our universe. That signal was the Cosmic Microwave Background (CMB), the earliest light in the universe, released 379,000 years after the Big Bang.

Embark on a thrilling journey through the cutting edge of theoretical physics and cosmology in this captivating work. From the mind-bending realms of M Theory to the tantalizing possibilities of parallel universes and the enigmatic mysteries of time travel, each topic is explored with depth and clarity. Delve into the intricate tapestry of String Theory, unravel the secrets of extra dimensions, and ponder the existence of multiple universes beyond our own. Join the exploration of cryogenics, where science fiction meets reality in the quest for immortality. With thought-provoking questions ...

O tempo não é um conceito abstrato. É uma substância material que ocupa todo o universo e se deforma, vibra, oscila. De Newton a Einstein, de Planck ao relógio cósmico, foi protagonista de metamorfoses vertiginosas, fascinantes e monstruosas. O tempo flui? Ou está parado? E como é medido? Como a gravidade o retarda? E como os buracos negros conseguem pará-lo? Sempre vivemos no tempo, que, no entanto, não é eterno.

Were ancient Greek philosophers right about reality being only an illusion? What was really the biggest blunder of Einstein's life? Is everything we've been taught about the universe incorrect? In The Unobservable Universe, visionary scientist and engineer Scott M. Tyson successfully unravels cosmology from the level of rocket science and brings it down to Earth, demystifying the universe in terms that laymen can comprehend and enjoy, splitting atoms but not hairs on this magical mystery tour of the outback of time and space.

Vorwärts in die Vergangenheit. Weiße Löcher sind das Gegenteil von Schwarzen Löchern – sie sind vermutlich ihre Abkömmlinge. Die einen ziehen alle Materie unwiderstehlich in sich hinein, die anderen geben ihre Information wieder frei. Sie sind ein weiteres großes Rätsel der Kosmologie, und noch gibt es keinen Beweis ihrer Existenz. Einsteins Gleichungen lassen sie aber vermuten, und mit Carlo Rovellis Quantentheorie sind Weiße Löcher theoretisch darstellbar.