Ergebnis für "zweiter weltkrieg" in Wissenschaft

On a moonless night in January 1991, a dozen US aircraft appeared in the skies over Baghdad. To the Iraqi air defenses, the planes seemed to come from nowhere. Each aircraft was more than 60 feet in length and with a wingspan of 40 feet, yet its radar footprint was the size of a ball bearing. Here was the first extensive combat application of Stealth technology. And it was devastating.

Malcolm Gladwell, author of New York Times best sellers including Talking to Strangers and host of the podcast Revisionist History, uses original interviews, archival footage, and his trademark insight to weave together the stories of a Dutch genius and his homemade computer, a band of brothers in Central Alabama, a British psychopath, and pyromaniacal chemists at Harvard. As listeners hear these stories unfurl, Gladwell examines one of the greatest moral challenges in modern American history.

Drawing on troves of declassified files, including records released by the government for the first time through the author's efforts, Restricted Data traces the complex evolution of the US nuclear secrecy regime from the first whisper of the atomic bomb through the mounting tensions of the Cold War and into the early 21st century. A compelling history of powerful ideas at war, it tells a story that feels distinctly American: rich, sprawling, and built on the conflict between high-minded idealism and ugly, fearful power.

Few perspectives epitomize the sheer drama and sacrifice of combat more perfectly than those of the fighter pilots of World War II. As romanticized as any soldier in history, the World War II fighter pilot was viewed as larger than life: a dashing soul waging war amongst the clouds. In the 65-plus years since the Allied victory, stories of these pilots' heroics have never been in short supply. But what about their adversaries - the highly skilled German aviators who pushed the Allies to the very brink of defeat?

In the late 1930s, legendary financier, philanthropist, and society figure Alfred Lee Loomis gathered the most visionary scientific minds of the 20th century at his state-of-the-art laboratory in Tuxedo Park, New York. He established a top-secret defense laboratory at MIT and personally bankrolled pioneering research into new, high-powered radar detection systems that helped defeat the German Air Force and U-boats. With Ernest Lawrence, he pushed Franklin Delano Roosevelt to fund research in nuclear fission, which led to the development of the atomic bomb.

Tim Koeth peered into the crumpled brown paper bag; inside was a surprisingly heavy black metal cube. He recognized the mysterious object instantly—he had one just like it sitting on his desk at home. It was uranium metal, taken from the nuclear reactor that Nazi scientists had tried—and failed—to build at the end of World War II. This unexpected gift, wrapped in a piece of paper inscribed with a few cryptic but crucial lines, would launch Koeth, a nuclear physicist and professor, and his colleague Miriam Hiebert, a cultural heritage scientist, on an odyssey to trace the tale of these cubes.

An unbelievable series of events led to the establishment of the Northwest Electro-development Laboratory, later the U.S. Bureau of Mines Albany Research Center. Though the fledgling lab had difficulty securing staff due to World War II, world-renown metallurgist William J. Kroll was hired early on as a consultant after fleeing Nazi occupation. Kroll, who had pioneered a method for producing commercial titanium, worked with his core group of associates to develop malleable zirconium, just as a need arose for the little-known metal.

Atomic weaponry is widely understood as a story of American scientific achievement—but scientists working in Britain played a vital role in its development. Including Nobel Prize winners and Jewish refugees from Nazi Germany, these scientists have long since been forgotten. But without their expertise, Robert Oppenheimer's research at Los Alamos would never have succeeded. Gareth Williams unearths the true story of the top-secret British atomic program, codenamed "Tube Alloys," established in 1940.

Few diseases are more gruesome than typhus. Transmitted by body lice, it afflicts the dispossessed - refugees, soldiers, and ghettoized peoples - causing hallucinations, terrible headaches, boiling fever, and often death. The disease plagued the German army on the Eastern Front and left the Reich desperate for a vaccine. For this they turned to the brilliant and eccentric Polish zoologist Rudolf Weigl.

A comprehensive study of the missile system that formed a critical component of the United States' nuclear arsenal. The Titan II ICBM (intercontinental ballistic missile) program was developed by the United States military to bolster the size, strength, and speed of the nation's strategic weapons arsenal in the 1950s and 1960s.

America's highest military award, the Congressional Medal of Honor, was awarded to 440 deserving members of the "Greatest Generation" that served in World War II. But in 1943, before the war was even over, Allied leaders realized they needed another kind of award to recognize a different kind of World War II hero - animal heroes. Founded in 1943, the prestigious PDSA Dickin Medal is the highest award an animal can achieve for gallantry and bravery in the field of military conflict. It was given to 55 animals who served valiantly alongside the members of the Greatest Generation.

The first operational military jet in the world, toward the end of the Second World War, the Me 262 was to be the German "miracle weapon". Mano Ziegler was involved from its inception and contributed to the design, testing, training, and even served in it operationally. Could the Me 262 have broken the Allied supremacy in the air? Hitler's Jet Plane fills an important gap in the history of the Luftwaffe and of aviation in general with new research which discloses how the first military jet plane failed to make its mark on World War II.

Les grands drames vécus lors d'une guerre relèguent habituellement les événements moins tragiques, au second rang. Bien que ces derniers passent inaperçus durant les combats, ils ne méritent pas moins d'être connus du public à cause du sentiment de bienveillance, de compassion, d'amour et d'innombrables preuves d'humanité dont ils ont fait preuve. Ce livre audio ne s'attarde donc pas sur les protagonistes des grandes batailles.

After a devastating run of German victories, Allied troops are beginning to halt Hitler’s advance. But far from the battlefields, Allied scientists are struggling. Intelligence reports put them a distant second behind the Germans in a competition that could determine the outcome of the war: the race to build the world’s first nuclear weapon. For the Allies’ top scientists, the race is deeply personal. J. Robert Oppenheimer, Enrico Fermi, and Samuel Goudsmit have known Hitler’s chief atomic scientist, Werner Heisenberg, for years.

Dr. Ernst Gräfenberg was among the most sought-after gynecologists in pre-World War II Germany. The creator of the first IUD, known as the Gräfenberg ring, he was posthumously credited with identifying the eponymous "Gräfenberg spot" or G-spot. He was also a Jew in Nazi Germany, and by 1938 he had been stripped of his practice, his possessions, and his freedom and was languishing in a Nazi prison.

Nous sommes à l'aube du 6 juin 1944. Il est six heures du matin lorsque les forces alliées débarquent sur les plages de Normandie. L'enjeu est de taille : il s'agit de porter un coup fatal au IIIe Reich d'Adolf Hitler et de libérer les territoires occupés. Le jour le plus long vient tout juste de se lever. Ce livre audio vous permettra d'en savoir plus sur : le contexte politique et social de l'époque ; les acteurs majeurs du conflit ; le déroulement du débarquement et sa chronologie ; les raisons de la victoire alliée.