Mostrando resultados por autor "Kam Ng" en Todas las categorías

Alexander Fleming’s life and work stand as one of the most remarkable chapters in the history of medicine. Born to a modest Scottish farming family, Fleming grew from quiet beginnings into a figure who would forever change the way humanity fights disease. His early medical career was marked by curiosity about how the body defends itself, leading him to the discovery of lysozyme, a natural antibacterial enzyme, and studies on antiseptics that shaped his thinking about infection. These experiences prepared him for his most famous moment in 1928, when he noticed that a stray mold had killed ...

Jonas Salk’s story is one of science, perseverance, and humanity. He grew up with a deep sense of responsibility toward others and an early interest in serving humanity rather than pursuing wealth or prestige. That conviction carried him into medical research, where he first made his mark developing influenza vaccines during World War II. Those early experiences sharpened his scientific instincts and prepared him for the challenge that would define his life: the fight against polio. In the 1940s and 1950s, polio haunted families across America and the world, striking children without ...

In June 2023, the world watched as the Titan submersible vanished during a dive to the wreck of the Titanic. Days later, search teams discovered the unthinkable—Titan had suffered a catastrophic implosion, ending the lives of all five aboard. The tragedy gripped global headlines, sparked intense debate, and left many questionings how such a disaster could have happened in an era of advanced engineering and safety standards. This eBook tells the full story of Titan: its bold but unconventional design, the risks that were overlooked, and the leadership decisions that shaped its fate. It ...

This eBook explores the life, achievements, and legacy of Sir Isaac Newton, one of the most influential scientists in history. From his early years as a curious and independent thinker to his groundbreaking contributions in mathematics, physics, and astronomy, Newton's work revolutionized the scientific world. Known for his formulation of the laws of motion and universal gravitation, Newton's theories not only laid the foundation for classical mechanics but also altered our understanding of the universe itself. The eBook dives into Newton’s significant inventions, such as the reflective ...

This eBook takes readers on a journey through some of the most tragic and unforgettable transportation disasters in modern history, spanning trains, car pileups, and bus accidents across the globe. From the Guadalajara train crash of 1915 to the Odisha train accident of 2023, from fog-shrouded motorways in Europe to the “Super Fog” car pileup in Louisiana, and from the mountain roads of Japan to the rivers and canals of India and the Philippines, each incident reveals the fragility of human travel and the suddenness with which ordinary journeys can turn deadly. The eBook explores not ...

Secretariat was not merely a racehorse; he was a living embodiment of athletic majesty; a figure whose feats transcended the boundaries of sport and became woven into the cultural and emotional fabric of American life. Born in 1970 at The Meadow in Doswell, Virginia, Secretariat emerged as a racing prodigy whose commanding physical form, extraordinary stride, and indomitable spirit distinguished him from his earliest starts. His 1973 Triple Crown campaign remains, to this day, one of the most astonishing achievements in the history of competitive athletics, punctuated by a 31-length victory...

This eBook on maritime disasters takes readers across more than a century of human ambition, misjudgment, and resilience at sea. It begins with the Titanic, the ship once declared unsinkable, whose tragic end in the icy Atlantic exposed the dangers of overconfidence and inadequate preparedness. From there, the story moves through wartime tragedy with the Wilhelm Gustloff, where the desperation of refugees and the violence of conflict created the deadliest shipwreck in history, and continues with the Doña Paz in the Philippines, a collision that claimed thousands of civilian lives in ...

Kryptos is more than a sculpture hidden within the grounds of the CIA—it is a story of secrecy, ingenuity, and the enduring power of human curiosity. Created by artist Jim Sanborn, with the guidance of cryptographer Ed Scheidt, it presents four encrypted passages, three of which have been solved, while the fourth, K4, continues to baffle experts and enthusiasts alike. This eBook traces the history of cryptology, explores the classical ciphers underlying the sculpture, and examines the remarkable journey of K1, K2, and K3 from mystery to solution. At the heart of the story lies K4, a 97-...

This eBook discusses cutting-edge diagnostics and monitoring practices reshaping industries worldwide. It is a comprehensive exploration of the transformative technologies and methodologies driving the evolution of machinery health monitoring. From predictive maintenance leveraging artificial intelligence and “internet of things” to precision diagnostics using advanced sensors, it addresses the latest research, innovative strategies, and future directions. Discover how these advancements are revolutionizing reliability, efficiency, and sustainability across sectors, ensuring machines ...

Boomerangs are far more than simple curved sticks; they are an extraordinary example of human ingenuity, blending survival, culture, science, and sport. Their history stretches back tens of thousands of years, from the mammoth-tusk hunting tools of Ice Age Europe to the sophisticated wooden designs of Aboriginal Australia. In Aboriginal society, boomerangs were essential tools for hunting, fishing, digging, and even fire-making, while also serving as canvases for art, ceremonial objects, and symbols of spiritual and cultural identity. The returning boomerang demonstrates a deep ...

Sigmund Freud remains one of the most influential and controversial figures in the history of psychology. His groundbreaking theories on the unconscious mind, psychoanalysis, dream interpretation, and human development transformed the way people understand behavior, personality, and mental health. Freud’s belief that much of human action is driven by unconscious desires challenged conventional wisdom and laid the foundation for modern psychotherapy. His ideas about repression, defense mechanisms, and the structural model of the mind—dividing it into the id, ego, and superego—became ...

Beneath the surface of our oceans lie echoes of the past—silent cities, broken ships, ancient mechanisms, and modern remnants—each holding fragments of human history lost to time and tide. This eBook is a journey through these submerged worlds, uncovering the mysteries and meanings behind some of the most extraordinary underwater discoveries ever made. From the sunken city of Dwarka off the coast of India to the pharaohs' lost ports of Heracleion and Canopus in Egypt, the forgotten Lion City beneath China's Qiandao Lake, and the Roman naval base of Portus Julius, these ancient cities ...

In this eBook, we dive into the fascinating world of memory, exploring its intricate mechanisms, remarkable capabilities, and potential for enhancement. From the fundamental processes of encoding, storage, and retrieval to the neural circuits and brain regions that underlie memory function, readers will gain a comprehensive understanding of how memory works and why it matters. Drawing on insights from neuroscience, psychology, and cognitive science, we examine the factors that influence memory performance, including genetics, environment, lifestyle, and age-related changes. Through a ...

Marie Curie’s life was a remarkable journey of scientific brilliance, perseverance, and groundbreaking discoveries that forever changed the world. Born in Poland, she overcame immense societal and financial challenges to pursue her passion for science, ultimately becoming the first woman to win a Nobel Prize and the only person to win in two different scientific fields. Her pioneering research on radioactivity—coining the very term—led to the discovery of polonium and radium, elements that revolutionized medicine, energy, and scientific understanding. Curie’s contributions extended ...

Finding your purpose in retirement is less about grand achievements and more about discovering meaning in the moments and choices that shape your days. Purpose gives direction, reminding you that life remains rich with opportunities to grow, connect, and contribute, no matter your age. For some, it may come through writing, sharing experiences, or learning something new. For others, it may be found in travel, time with family, tending a garden, volunteering, or simply caring for a pet. What matters most is that the activity brings a sense of fulfillment and makes each day feel worthwhile. ...

In this eBook, we embark on a journey and exploration of cutting-edge technology in smart materials and structures. From self-healing polymers to shape memory alloys, discover the revolutionary advancements that are reshaping industries and unlocking new possibilities. This eBook dives into the principles, applications, and prospects of smart materials. Uncover the secrets behind adaptive structures, intelligent sensors, and the synergy between materials and technology. Whether you're a student, researcher, or simply curious about the future of materials science, this eBook provides a ...

In this eBook, we embark on a fascinating journey into the world of tornadoes, exploring their formation, characteristics, and the profound impact they have on our environment and communities. Tornadoes, nature’s most violent storms, are characterized by their swirling winds and destructive power, capable of causing widespread devastation in mere minutes. We dive into the intricate atmospheric conditions and supercell thunderstorms that give birth to these phenomena, examining the interplay of wind shear, instability, and moisture that fuels their formation. The narrative transitions into...

This eBook on digital footprint explores the complex and ever-evolving relationship between individuals and their presence in the digital world. It begins by defining what a digital footprint is, explaining how every online interaction—whether intentional or passive—leaves a lasting trace. The eBook discusses the importance of understanding digital footprints, highlighting how they impact personal privacy, job prospects, finances, and overall reputation. It distinguishes between active footprints, created knowingly by users, and passive footprints, generated without conscious input. The...

This eBook explores the fascinating world of cave dwellings, diving into their origins, historical significance, and enduring appeal in modern times. From the ancient cliffside homes of the Ancestral Puebloans to the underground cities of Cappadocia, cave dwellings have served as practical and resilient shelters for millennia. The eBook examines the unique characteristics of these structures, highlighting how natural insulation, sustainability, and harmony with the environment make them a compelling choice even today. It also discusses the regions in the United States where one might ...

Galileo Galilei stands as a towering figure in the history of science and astronomy, whose bold intellect and innovative spirit transformed humanity’s understanding of the universe. In this eBook, we journey through Galileo’s life, from his early days in Pisa, where his fascination with mathematics and the natural world took root, to his groundbreaking discoveries that would forever change the trajectory of scientific thought. As the first to use a telescope to systematically observe the night sky, Galileo revealed the Moon’s rugged surface, discovered Jupiter’s four largest moons, ...