Oxygen Book Summary - Oxygen Book explained in key points
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Oxygen summary

Nick Lane

The Molecule That Made the World

4.1 (36 ratings)
16 mins

Brief summary

'Oxygen' by Nick Lane is a scientific exploration of the history and importance of oxygen in our world. It reveals how oxygen has shaped the evolution of life, from cells to complex organisms, and how its absence has led to extinction.

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    Oxygen
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    Oxygen is essential to life on earth, but it’s also a deadly toxin.

    Everyone knows how important oxygen is. After all, without it, we’d all be dead in a matter of minutes. But oxygen serves important functions beyond just respiration.

    While oxygen has played an essential role in sustaining life on earth for millennia, it hasn't always been such a ubiquitous element. For instance, about four billion years ago, the planet’s atmosphere contained barely any oxygen at all. But today, our air is about 21 percent oxygen.

    So where did it all come from?

    The answer is photosynthesis, the process through which plants use sunlight to split water into its constituent parts, hydrogen and oxygen. While solar energy can also break apart water molecules, doing so without photosynthesis was actually a threat to the early life forms that developed in the oceans.

    How so? Well, while hydrogen is a light gas that can escape the planet’s gravity, oxygen is much heavier and remains in the atmosphere. So, without hydrogen to bond with, these free oxygen molecules bonded with iron and entered the oceans instead of staying in the atmosphere. The result was a net loss of water as hydrogen left the atmosphere, offering fewer chances for oxygen and hydrogen to combine and become water.

    But that all changed with photosynthesis. This process produced oxygen in such abundance it accumulated in the atmosphere where it bonded with hydrogen, forming more water. Essentially, atmospheric oxygen halted the planet’s rapid water depletion, helping ocean life evolve.

    However, oxygen also threatened life on earth. While it is the essence of life for humans, for the tiny organisms that preceded us, oxygen was a lethal gas. In fact, most organisms alive today can only tolerate oxygen because they have antioxidants. These chemicals prevent the cell-damaging process of oxidation, wherein oxygen breaks electrons away from organic molecules, causing them to disintegrate. Since early life forms didn’t have antioxidants, oxygen was a death sentence for them.

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    What is Oxygen about?

    Oxygen (2002) is a guide to the element that is so essential to our very existence that we sometimes forget it even exists. These blinks explain how oxygen enables and boosts life on earth while simultaneously threatening it.

    Oxygen Review

    Oxygen (2002) by Nick Lane explores the fascinating history and science of this life-giving and perplexing molecule. Here's why this book is definitely worth reading:

    • With meticulous research and lucid explanations, it delves into the significance of oxygen in shaping the Earth's atmosphere and driving the evolution of complex life.
    • By unraveling oxygen's role in energy production, aging, and disease, the book sheds light on the fundamental connections between oxygen and our health.
    • Through captivating storytelling and thought-provoking insights, Oxygen navigates the complexities of the scientific world, making it accessible and far from boring.

    Best quote from Oxygen

    Diamonds are forever only in the absence of oxygen.

    —Nick Lane
    example alt text

    Who should read Oxygen?

    • Anybody fascinated by the evolution of life on Earth
    • Anyone interested in biology, chemistry or physics

    About the Author

    Dr. Nick Lane studied biochemistry at Imperial College London and is an Honorary Reader at University College London. He is the author of Power, Sex, Suicide: Mitochondria and the Meaning of Life and Life Ascending: The Ten Great Inventions of Evolution.

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    Oxygen FAQs 

    What is the main message of Oxygen?

    Discover the vital role of oxygen in shaping the evolution of life on Earth.

    How long does it take to read Oxygen?

    The reading time for Oxygen varies depending on the reader's speed. However, the Blinkist summary can be read in just 15 minutes.

    Is Oxygen a good book? Is it worth reading?

    Oxygen is a fascinating exploration of the impact oxygen has had on life. A must-read for science enthusiasts.

    Who is the author of Oxygen?

    Nick Lane is the author of Oxygen.

    What to read after Oxygen?

    If you're wondering what to read next after Oxygen, here are some recommendations we suggest:
    • Power, Sex, Suicide by Nick Lane
    • Drinking Water by James Salzman
    • Thinking, Fast and Slow by Daniel Kahneman
    • Come Together by Emily Nagoski
    • The Triumph of Seeds by Thor Hanson
    • Elevate by Joseph Deitch
    • 12 Rules For Life by Jordan B. Peterson
    • The Big Picture by Sean Carroll
    • Fooled by Randomness by Nassim Nicholas Taleb
    • Workstyle by Lizzie Penny and Alex Hirst