Showing results for "Audio in Media" in Physics

What is Now? This immediate moment, what we're experiencing right now . . . it bathes us like air, or gravity. Yet when we try to grasp this quality, to scrutinize it or bring it into focus, it vanishes, slipping through our fingers like a dream. And worse, according to the most trusted models of physics, Now doesn't even exist. If all this is so, then what, exactly, are we experiencing? How do we carve out time, sensation, self, and meaning from a blank, Now-less canvas?

If you've ever found yourself fascinated by the idea of quantum computing but feel a little overwhelmed by the mind-blowing subject of quantum mechanics or concerned by climate change but haven't been able to get to grips with the details of global warming, this book is for you.

Sixty-six million years ago an asteroid as large as Mt. Everest hit what is now the Yucatan Peninsula at a speed ten times faster than the fastest rifle bullet. Debris from the impact blew into space, re-entered the atmosphere as a swarm of shooting stars that burned the global forests and grasslands, leaving behind a thin global layer containing rock from the asteroid and from Mexico, and smoke from the fires. This layer marks one of the greatest extinctions in Earth history including not just dinosaurs, but also fish, plankton, ammonites, and plants making up about 75% of the known species.