A Most Improbable Journey: A Big History of Our Planet and Ourselves [EPUB]
25 November 2016, 18:10
2016 | EPUB | 25.23MB
Famed geologist Walter Alvarez expands our view of human history by revealing the cosmic, geologic, and evolutionary forces that have shaped us.
One in a million doesn’t even come close.
Not when we’re talking about the odds that you would happen to be alive today, on this particular planet, hurtling through space. Almost fourteen billion years of cosmic history, over four billion years of Earth history, a couple million years of human history, the rise and fall of nations, the unbroken string of generations necessary to lead to you―it’s staggering to consider. Yet behind everything in our world, from the phone in your pocket to even the force of gravity itself, lies a similarly grand procession of highly improbable events.
This panoramic viewpoint has captured the imagination of historians and scientists alike, and together they’ve created a new field―Big History―that integrates traditional historical scholarship with scientific insights to study the full sweep of our universe and its past. Famed geologist Walter Alvarez―best known for the impact theory explaining dinosaur extinction―has championed a science-first approach to Big History, and A Most Improbable Journey is one of the first Big History books to be written by a scientist rather than a historian. Alvarez brings his unique expertise and infectious curiosity to give us a new appreciation for the incredible occurrences―from the Big Bang to the formation of supercontinents, the dawn of the Bronze Age, and beyond―that have led to our improbable place in the universe.
Life's Engines: How Microbes Made Earth Habitable [EPUB]
22 November 2016, 21:25
2015 | EPUB | 5.0MB
For almost four billion years, microbes had the primordial oceans all to themselves. The stewards of Earth, these organisms transformed the chemistry of our planet to make it habitable for plants, animals, and us. Life's Engines takes readers deep into the microscopic world to explore how these marvelous creatures made life on Earth possible--and how human life today would cease to exist without them.
Paul Falkowski looks "under the hood" of microbes to find the engines of life, the actual working parts that do the biochemical heavy lifting for every living organism on Earth. With insight and humor, he explains how these miniature engines are built--and how they have been appropriated by and assembled like Lego sets within every creature that walks, swims, or flies. Falkowski shows how evolution works to maintain this core machinery of life, and how we and other animals are veritable conglomerations of microbes.
A vibrantly entertaining book about the microbes that support our very existence, Life's Engines will inspire wonder about these elegantly complex nanomachines that have driven life since its origin. It also issues a timely warning about the dangers of tinkering with that machinery to make it more "efficient" at meeting the ever-growing demands of humans in the coming century.
Ending Aging: The Rejuvenation Breakthroughs That Could Reverse Human Aging in Our Lifetime [EPUB]
22 November 2016, 21:23
2008 | EPUB | 1.06MB
Must We Age?
Nearly all scientists who study the biology of aging agree that we will someday be able to substantially slow down the aging process, extending our productive, youthful lives. Dr. Aubrey de Grey is perhaps the most bullish of all such researchers. As has been reported in media outlets ranging from 60 Minutes to The New York Times, Dr. de Grey believes that the key biomedical technology required to eliminate aging-derived debilitation and death entirely―technology that would not only slow but periodically reverse age-related physiological decay, leaving us biologically young into an indefinite future―is now within reach.
In Ending Aging, Dr. de Grey and his research assistant Michael Rae describe the details of this biotechnology. They explain that the aging of the human body, just like the aging of man-made machines, results from an accumulation of various types of damage. As with man-made machines, this damage can periodically be repaired, leading to indefinite extension of the machine's fully functional lifetime, just as is routinely done with classic cars. We already know what types of damage accumulate in the human body, and we are moving rapidly toward the comprehensive development of technologies to remove that -damage. By demystifying aging and its postponement for the nonspecialist reader, de Grey and Rae systematically dismantle the fatalist presumption that aging will forever defeat the efforts of medical science.