Andrew Cohen - Forces of Nature

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A breathtaking and beautiful exploration of our planet, this groundbreaking book accompanies the BBC One TV series, providing the deepest answers to the simplest questions.‘What is motion?’‘Why is every snowflake different?’‘Why is life symmetrical?’To answer these and many other questions, Professor Brian Cox uncovers some of the most extraordinary natural events on Earth and in the Universe and beyond.From the immensity of the Universe and the roundness of Earth to the form of every single snowflake, the forces of nature shape everything we see. Pushed to extremes, the results are astonishing. In seeking to understand the everyday world, the colours, structure, behaviour and history of our home, we develop the knowledge and techniques necessary to step beyond the everyday and approach the Universe beyond.Forces of Nature takes you to the great plains of the Serengeti, the volcanoes of Indonesia and the precipitous cliffs in Nepal, to the humpback whales of the Caribbean and the northern lights of the Arctic. Brian will answer questions on Earth that will illuminate our understanding of the Universe.Think you know our planet?Think again.

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Copyright William Collins An imprint of HarperCollins Publishers 1 London - фото 1

Copyright

William Collins

An imprint of HarperCollins Publishers 1 London Bridge Street London SE1 9GF

WilliamCollinsBooks.com

This eBook edition published by William Collins in 2017

Text © Brian Cox and Andrew Cohen 2016

Photographs © individual copyright holders

Diagrams, design and layout © HarperCollins Publishers 2017

By arrangement with the BBC.

The BBC logo is a trademark of the British Broadcasting Corporation and is used under licence.

BBC logo © BBC 2014

The authors assert their moral right to be identified as the authors of this work.

Cover image © Shutterstock

A catalogue record for this book is available from the British Library.

All rights reserved under International and Pan-American Copyright Conventions. By payment of the required fees, you have been granted the non-exclusive, non-transferable right to access and read the text of this eBook on-screen. No part of this text may be reproduced, transmitted, downloaded, decompiled, reverse engineered, or stored in or introduced into any information storage and retrieval system, in any form or by any means, whether electronic or mechanical, now known or hereinafter invented, without the express written permission of HarperCollins Publishers.

Source ISBN: 9780008210038

Ebook Edition © March 2017 ISBN: 9780008249335

Version: 2017-07-17

Praise for Professor Brian Cox:

‘Engaging, ambitious and creative.’

Guardian

‘He bridges the gap between our childish sense of wonder and a rather more professional grasp of the scale of things.’

Independent

‘If you didn’t utter a wow watching the TV, you will while reading the book.’

The Times

‘In this book of the acclaimed BBC2 TV series, Professor Cox shows us the cosmos as we have never seen it before – a place full of the most bizarre and powerful natural phenomena.’

Sunday Express

‘Cox’s romantic, lyrical approach to astrophysics all adds up to an experience that feels less like homework and more like having a story told to you. A really good story, too.’

Guardian

‘Will entertain and delight … what a priceless gift that would be.’

Independent on Sunday

For my dad, David.

Brian Cox

For Benjamin, Martha, Theo, Dan, Jake, Lyla, Ellie, Toby, Phoebe, Max, Zak, Josh, Isaac and Tabitha because curious young minds always ask the smartest of questions.

Andrew Cohen

Contents

Cover

Title Page

Copyright

Praise for Professor Brian Cox

Dedication

Chapter 1

SYMMETRY

The Universe in a Snowflake

Why do Bees Build Hexagons?

Knocking on the Doors of Chemistry

The Fundamental Building Blocks and the Forces of Nature

Why is the Earth a Sphere?

Why does Life Come in So Many Shapes and Sizes?

Symmetry and Symmetry Breaking in Biology

The Universe in a Snowflake

Chapter 2

MOTION

Somewhere in Spacetime

Life on an Orbiting Planet: The Seasons

The Formation of the Earth and Moon

Life on an Orbiting Planet: Storms

Life on an Orbiting, Spinning Planet: The Tides

Einstein’s Theory of Special Relativity

Somewhere in Spacetime

Spacetime Calculations

Chapter 3

ELEMENTS

The Moth and the Flame

Chemistry is all About the Movement of Electrons

Frankenstein’s Monsters

On the Origin of Species: A Framework to Make Sense of Life on Earth

The Oldest Life on Earth

A Warm Little Pond?

Life, Thermodynamics and Entropy

The Moth and the Flame

A Very Different Eden

Life Beyond Earth

Chapter 4

COLOUR

Pale Blue Dot

The Rainbow Connection

Why does the Sun Shine?

The Nuclear Physics of the Sun

Why do Hot Things Shine?: Part 1: James Clerk Maxwell and the Golden Age of Wireless

Why do Hot Things Shine?: Part 2: Max Planck and the Quantum Revolution

A Serendipitous Aside; The Solar Neutrino Problem

Pale Blue Green Planet: Part 1: The Oceans

Pale Blue Green Planet: Part 2: The Sky

Pale Blue Green Planet: Part 3: The Land

Pale Coloured Dots

Plate Section

Picture Credits

Index

By the Same Author

Acknowledgements

About the Authors

About the Publisher

SEARCHING FOR THE DEEPEST ANSWERS TO THE SIMPLEST QUESTIONS

‘What beauty. I saw clouds and their light shadows on the distant dear Earth... The water looked like darkish, slightly gleaming spots... When I watched the horizon, I saw the abrupt, contrasting transition from the Earth’s light-coloured surface to the absolutely black sky. I enjoyed the rich colour spectrum of the Earth. It is surrounded by a light blue aureole that gradually darkens, becoming turquoise, dark blue, violet, and finally coal black.’ Yuri Gagarin

Taking a different perspective

This is a book about science. What is science? That’s a good question, and there may be as many answers as there are scientists. I would say that science is an attempt to understand the natural world. The explanations we discover can often seem abstract and separate from the familiar, but this is a false impression. Science is about explaining the everyday minutiae of human experience. Why is the sky blue? Why are stars and planets round? Why does the world keep on turning? Why are plants green? These are questions a child might ask, but they are certainly not childish; they generate a chain of answers that ultimately lead to the edge of our understanding.

If you dig deep enough, most questions end with uncertainty. The sky is blue because of the way light interacts with matter, and the way light interacts with matter is determined by symmetries that constrain the laws of Nature. We’ll encounter these concepts later in the book. But if one keeps on digging, and asks why those particular symmetries, or why there are laws of Nature at all, then we are into the glorious hazy place in which scientists live and work; the space between the known and the unknown. This is the domain of the research scientist, and it is a place of curiosity and wonder.

Grander questions lurk in the half-light. How did life on Earth begin? Is there life on other worlds? What happened in the first few moments after the Big Bang? These are questions that have a sense of depth and a feeling of complexity and intractability, but the techniques and processes by which we look for answers are no different to those deployed in discovering why the sky is blue. This is an important point. If a question sounds deep, it doesn’t mean that the way to answer it is to retire to the wilderness for a year, sit cross-legged and hope for something to occur to you. Rather, the answers are often constructed on foundations generated by the systematic and careful exploration of simpler questions. This idea is central to our book. In seeking to understand the everyday world – the colours, structure, behaviour and history of our home – we develop the knowledge and techniques necessary to step beyond the everyday and approach the Universe beyond.

‘THE FIRST DAY OR SO WE ALL POINTED TO OUR COUNTRIES. THE THIRD OR FOURTH DAY WE WERE POINTING TO OUR CONTINENTS. BY THE FIFTH DAY WE WERE AWARE OF ONLY ONE EARTH.’

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