First Light Switching On Stars At The Dawn Of Time
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First Light
Author: Emma Chapman
language: en
Publisher: Bloomsbury Publishing
Release Date: 2020-11-26
Opens a window into a previously dark and secret time in our universe's history: when the first stars were born. Astronomers have successfully observed a great deal of the Universe's history, from recording the afterglow of the Big Bang to imaging thousands of galaxies, and even to visualising an actual black hole. There's a lot for astronomers to be smug about. But when it comes to understanding how the Universe began and grew up, we are literally in the dark ages. In effect, we are missing the first one billion years from the timeline of the Universe. This brief but far-reaching period in the Universe's history, known to astrophysicists as the 'Epoch of Reionisation', represents the start of the cosmos as we experience it today. The time when the very first stars burst into life, when darkness gave way to light. After hundreds of millions of years of dark, uneventful expansion, one by the one these stars suddenly came into being. This was the point at which the chaos of the Big Bang first began to yield to the order of galaxies, black holes and stars, kick-starting the pathway to planets, to comets, to moons, and to life itself. Incorporating the very latest research into this branch of astrophysics, this book sheds light on this time of darkness, telling the story of these first stars, hundreds of times the size of the Sun and a million times brighter, lonely giants that lived fast and died young in powerful explosions that seeded the Universe with the heavy elements that we are made of. Dr Emma Chapman tells us how these stars formed, why they were so unusual, and what they can teach us about the Universe today. She also offers a first-hand look at the immense telescopes about to come on line to peer into the past, searching for the echoes and footprints of these stars, to take this period in the Universe's history from the realm of theoretical physics towards the wonder of observational astronomy.
The Red
A Publishers Weekly Best Book of 2015 Reality TV and advanced technology make for high drama in this political thriller that combines the military action of Zero Dark Thirty with the classic science fiction of The Forever War. Lieutenant James Shelley, who has an uncanny knack for premeditating danger, leads a squad of advanced US Army military tasked with enforcing the peace around a conflict in sub-Saharan Africa. The squad members are linked wirelessly 24/7 to themselves and a central intelligence that guides them via drone relay—and unbeknownst to Shelley and his team, they are being recorded for a reality TV show. When an airstrike almost destroys their outpost, a plot begins to unravel that’s worthy of Crichton and Clancy’s best. The conflict soon involves rogue defense contractors, corrupt US politicians, and homegrown terrorists who possess nuclear bombs. Soon Shelley must accept that the helpful warnings in his head could be AI. But what is the cost of serving its agenda?
The Book of Why
The hugely influential book on how the understanding of causality revolutionized science and the world, by the pioneer of artificial intelligence 'Wonderful ... illuminating and fun to read' Daniel Kahneman, Nobel Prize-winner and author of Thinking, Fast and Slow 'Correlation does not imply causation.' For decades, this mantra was invoked by scientists in order to avoid taking positions as to whether one thing caused another, such as smoking and cancer, or carbon dioxide and global warming. But today, that taboo is dead. The causal revolution, sparked by world-renowned computer scientist Judea Pearl and his colleagues, has cut through a century of confusion and placed cause and effect on a firm scientific basis. Now, Pearl and science journalist Dana Mackenzie explain causal thinking to general readers for the first time, showing how it allows us to explore the world that is and the worlds that could have been. It is the essence of human and artificial intelligence. And just as Pearl's discoveries have enabled machines to think better, The Book of Why explains how we too can think better. 'Pearl's accomplishments over the last 30 years have provided the theoretical basis for progress in artificial intelligence and have redefined the term "thinking machine"' Vint Cerf