Otros libros que te pueden interesar

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  Sidelights on Relativity

  Albert Einstein

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  Sidelights on Relativity contains ETHER AND THE THEORY OF RELATIVITY, an address delivered on May 5th, 1920, in the University of Leyden; and GEOMETRY AND EXPERIENCE, an expanded form of an address to the Prussian Academy of Sciences in Berlin on January 27th, 1921. (Intro from Project Gutenberg)

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  Younger Dryas Period The: The...

  Editors Charles River

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  From about 12,900 to 11,700 before present (BP), near Ice Age conditions returned to the Northern Hemisphere of the planet. It was a sudden shift from the warm temperatures that had prevailed for nearly 2,000 years. This period is referred to by archaeologists, geologists, and earth scientists as the Greenland Stadial, but it is more commonly known as the Younger Dryas. The Younger Dryas marked the end of the last glacial period, the end of the Pleistocene Era, and the beginning of the Holocene Era, which is the current era. It was a period of great change, when climate change happened quite quickly, directly affecting the flora, fauna, and humans of the Northern Hemisphere in the process. The impact on the human populations was perhaps most important because, in some places, it virtually destroyed emerging cultures, while in other places, it might have propelled humans to develop new survival traits and technologies later used to move humanity into the Neolithic era. Although scholars now know quite a bit about the Younger Dryas, many elements of it are still debated. Other aspects serve as a predictor of what humans can expect in the future. 
  	There is, however, still plenty of information about the Younger Dryas that remains unknown or open to debate. Not all scholars agree on the dates of the Younger Dryas or how long it lasted. Even more controversial are the alternate theories about what caused the Younger Dryas and the effect it had on the Northern Hemisphere’s bio-populations. This book examines the background of the Younger Dryas, its effects on bio-populations, and how it contributed to the emergence of the Neolithic Era. Alternative theories will be examined and compared to more standard ideas currently prevailing in academia.

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  Future of Space Exploration The:...

  Sybex Books

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  The Future of Space Exploration: Humanity’s Next Great Frontier delves into one of the most thrilling and transformative pursuits of our time: humanity’s journey beyond Earth. This thought-provoking book explores how space exploration has evolved from the first tentative steps of the Apollo era to the cutting-edge advancements of today, and how these developments are paving the way for an interstellar future. 
  From the challenges of building self-sustaining colonies on Mars to the groundbreaking technologies enabling deep-space travel, the book uncovers the ingenuity, courage, and determination driving our species toward the stars. It examines the roles of private companies like SpaceX and Blue Origin alongside international collaborations like the Artemis Program, illustrating how diverse partnerships are shaping the future of space. 
  Drawing on real-world innovations, ethical considerations, and the philosophical implications of becoming a multi-planetary species, this book offers a compelling vision of what lies ahead for humanity. Whether it's mining asteroids, exploring the moons of Jupiter and Saturn, or pondering the potential for extraterrestrial life, The Future of Space Exploration provides an in-depth look at the challenges and triumphs awaiting us on the next great frontier. 
  Engaging and forward-looking, this book is perfect for space enthusiasts, science and technology buffs, and anyone curious about the role of space exploration in shaping our collective destiny.

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  The Bruised Reed

  Richard Sibbes

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  Richard Sibbes was a Puritan pastor and theologian in the 17th century. His best known work, The Bruised Reed, is based on a Scripture verse from Matt. 12:20: "A bruised reed shall he not break, and smoking flax shall he not quench, till he send forth judgment unto victory." Sibbes uses this text to respond to the despondent thoughts and fears that many Christians have. He draws a picture of Christ's gentleness and mercy for the Christians who feel themselves small and weak. The Bruised Reed is full of an amazing amount of soul-comfort. I cannot recommend it highly enough, especially to Christians struggling with depression, regret, or fear.The publishers' foreword quotes Dr. Martyn Lloyd Jones, who said:"I shall never cease to be grateful to . . . Richard Sibbes who was balm to my soul at a period in my life when I was overworked and badly overtired, and therefore subject in an unusual manner to the onslaughts of the devil. In that state and condition . . . what you need is some gentle, tender treatment for your soul. I found at that time that Richard Sibbes, who was known in London in the early seventeenth century as 'the heavenly Doctor Sibbes', was an unfailing remedy. His books The Bruised Reed and The Soul's Conflict quietened, soothed, comforted, encouraged and healed me."(Introduction by rosea)

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  Creating a Small Business...

  Mark Anderson

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  Are you ready for your financial freedom? 
  Are you ready to break free from the 9–5 job? 
  Are you ready to build a business? 
  Start A Small Business is your ultimate step-by-step guide to launching and scaling a profitable business in today’s economy. 
  Whether you're building an online business, starting a brick-and-mortar store, or offering services as a solopreneur, this book will empower you with actionable strategies, expert insights, and proven frameworks to succeed.

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  The Life and Death of Ryan White...

  Paul M. Renfro

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  In the 1980s, as HIV/AIDS ravaged queer communities and communities of color in the United States and beyond, a straight white teenager named Ryan White emerged as the face of the epidemic. Diagnosed with hemophilia at birth, Ryan contracted HIV through contaminated blood products. In 1985, he became a household name after he was barred from attending his Indiana middle school. As Ryan appeared on nightly news broadcasts and graced the covers of popular magazines, he was embraced by music icons and well-known athletes, achieving a curious kind of stardom. Analyzing his struggle and celebrity, Paul M. Renfro's powerful biography grapples with the contested meanings of Ryan's life, death, and afterlives. 
   
   
   
  As Renfro argues, Ryan's fight to attend school forced the American public to reckon with prevailing misconceptions about the AIDS epidemic. Yet his story also reinforced the hierarchies at the heart of the AIDS crisis. Because the "innocent" Ryan had contracted HIV "through no fault of his own," as many put it, his story was sometimes used to blame presumably "guilty" populations for spreading the virus. Reexamining Ryan's story through this lens, Renfro reveals how the consequences of this stigma continue to pervade policy and cultural understandings of HIV/AIDS today.

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