Time Cosmology

In 2000, Martin Bojowald, then a twenty-seven-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...

In this vibrant, eye-opening tour of milestones in the history of our universe, Chris Impey guides us through space and time, leading us from the familiar sights of the night sky to the dazzlingly strange aftermath of the Big Bang. What if we could look into space and see not only our place in the universe but also how we came to be here? As it happens, we can. Because it takes time for light to travel, we see more and more distant regions of the universe as they were in the successively greater past.

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.

Black holes are the most extreme objects in the universe, and yet they are ubiquitous. Frighteningly enigmatic, these dark giants continue to astound even the scientists who spend their careers studying them. Einstein’s Monsters reveals how our comprehension of black holes is intrinsically linked to how we make sense of the universe and our place within it. From the small questions to the big ones - from the tiniest particles to the nature of space-time itself - black holes might be the key to a deeper understanding of the cosmos.

This is an indispensable guide to physics that offers readers an overview of the most popular physics topics written in an accessible, irreverent, and engaging manner while still maintaining a tone of wry skepticism. Even the novice will be able to follow along, as the topics are addressed using plain English and (almost) no equations. Veterans of popular physics will also find their nagging questions addressed, like whether the universe can expand faster than light.

Across millennia, cultures and civilizations have envisioned the ability to revisit the past, glimpse the future, or even rewrite fate. From ancient mythologies to modern science fiction epics, the allure of time travel persists as one of humanity’s most profound and enduring fascinations.

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 Beginner's Guide to Parallel Realities" transforms mind-bending concepts into accessible insights that will forever change how you view reality. Using clear examples and engaging thought experiments, this guide breaks down complex theories about the multiverse, time travel, and alternate dimensions into digestible pieces that anyone can understand.

Visualize and explore the wonders of our universe. Black holes, dark matter, space-time, gravity, light-speed, orbits, photons, dark energy, solar systems, the big bang, expansion, the shape of the universe, and even the multiverse!