Outros livros que poderiam interessá-lo

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  Planet X Hypothesis The: The...

  Editors Charles River

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  Naturally, as technological advances and the creation of flying aircraft became realities, the sighting of UFOs increased, as did the interest in potential contact with aliens. While incidents like the one at Roswell led to conspiracies and a craze among those who insisted the government was hiding proof of extraterrestrials’ existence, governments across the world were actually secretly studying UFO sightings by the mid-20th century. 
  Given all of that, it was hardly groundbreaking for scientists in the 19th century to have plenty of heated debates about their imperfect knowledge of astronomy. One particular argument was over whether there was a hidden planet beyond Neptune, dubbed by the theory’s original proponent, Percival Lowell, as Planet X. When Pluto was discovered in 1930, at the start of the Great Depression, scientists originally thought this new world, in the extreme cold at the outer edge of the Solar System, would solve a decades-old mystery regarding the orbit of Uranus, the seventh planet from the Sun. But soon, scientists realized that Pluto, at one point considered the 9th planet, was too small to explain the discrepancies found. Thus, some researchers began looking for the next planet, or Planet X. 
  Throughout our modern culture, “X” has remained the proverbial symbol of mystery. On the maps of buried pirate treasure, “X” is supposed to mark the spot where treasure seekers are to dig. In public schools, teenagers learn the utility of “X” as a variable in algebraic equations or as an axis in the Cartesian coordinate system. And “X” is also a Roman numeral symbolizing the quantity of 10, the highest value which can be counted on the fingers, and the next value beyond “9,” the largest single digit. The search for “Planet X,” then, is a quest rich with symbolism and mystery, rooted in history, astronomy, and astrology.

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  The Secrets of Alchemy

  Lawrence M. Principe

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  In The Secrets of Alchemy, Lawrence M. Principe, one of the world's leading authorities on the subject, brings alchemy out of the shadows and restores it to its important place in human history and culture. By surveying what alchemy was and how it began, developed, and overlapped with a range of ideas and pursuits, Principe illuminates the practice. He vividly depicts the place of alchemy during its heyday in early modern Europe, and then explores how alchemy has fit into wider views of the cosmos and humanity, touching on its enduring place in literature, fine art, theater, and religion as well as its recent acceptance as a serious subject of study for historians of science. In addition, he introduces the listener to some of the most fascinating alchemists, such as Zosimos and Basil Valentine, whose lives dot alchemy's long reign from the third century and to the present day. Through his exploration of alchemists and their times, Principe pieces together closely guarded clues from obscure and fragmented texts to reveal alchemy's secrets, and—most exciting for budding alchemists—uses them to recreate many of the most famous recipes in his lab, including those for the "glass of antimony" and "philosophers' tree." This unique approach brings the listener closer to the actual work of alchemy than any other book.

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  Let's Clear Things Up - The...

  Reuben Setliff

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  Learn the facts about sinus surgery and the medical and minimally invasive procedures available to you from a pioneer in otolaryngology. Sinuses. Everybody has them. Nobody likes them. The words “sinus” and “issues” are associated together so often, it’s no wonder that over half a million people receive sinus surgery in the US each year. But for many, the problems with their sinuses still persist well after receiving treatment.  With more than thirty years of experience as a sinus surgeon, Dr. Reuben Setliff wants patients to know as much as possible about their sinuses when facing the potentially life-altering choices of surgery and picking a long-term care routine. His tell-all book, Let’s Clear Things Up, explains the differences between optional and necessary surgery, the benefits of minimally invasive procedures, and natural ways to correct sinus problems all on our own. Get informed so that when you walk into a clinic, the air between you and your doctor is clear enough to get you breathing right the first time.

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  Time - The Dream of Killing Cronos

  Guido Tonelli

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  What is time? Does it exist? Can it be stopped? Can time's arrow be reversed? Can we ever free ourselves from the seemingly inexorable flow of time? Chronos is a mystery, and not only for us: it was a mystery for our distant ancestors too.In this book, Guido Tonelli guides us along the path to understanding a reality that is very different from what we believe it to be. Modern science allows us to explore the deepest recesses of the universe, and when we observe the giant objects which inhabit the cosmos over great distances—galaxies and clusters of galaxies—time acquires characteristics which are very different from those that we are used to. The same happens when we analyze the phenomena which occur on a sub-nuclear scale. In these two worlds which are so far apart from one other, the harmonious and constant flow of time which has enchanted us for millennia twists, melts, and shatters. Space and time appear as an indissoluble couple—not some abstract concept but a material substance which occupies the entire universe, which vibrates, oscillates, and is in a constant process of change.With Tonelli's erudite assistance, we discover the long history of time, its violent birth, and strange evolution. In our imaginations, we travel to terrifying places where time stops and explore the close link which binds time to energy. This is a bewildering journey that forces us to discard our preconceptions and abandon all certainty, a journey in which myth, art, and philosophy will come to our aid when our minds begin to falter.

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  Leonardo da Vinci – The...

  Théophile Martin

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  Leonardo da Vinci was not just a painter—he was an architect, scientist, engineer, and inventor. A man centuries ahead of his time, he explored the mysteries of human anatomy, sketched flying machines long before airplanes existed, and painted some of history’s most iconic masterpieces, including the Mona Lisa and The Last Supper. 
  This immersive audiobook delves into Leonardo’s relentless curiosity, his secret notebooks filled with futuristic ideas, and his impact on both the Renaissance and modern science. Discover the man behind the genius—his struggles, his triumphs, and the mind that changed the world forever. 
  Leonardo da Vinci – The Renaissance Genius and Visionary is a must-listen for history lovers, art enthusiasts, and anyone fascinated by the power of human imagination.

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  Electronic Engineering - Transistor

  Prasun Barua

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  An audio book on electronic engineering - transistor. Basics of a transistor are discussed in this audio book.

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