D'autres livres qui pourraient vous intéresser

• 

  Mercury and Gemini: The History...

  Editors Charles River

  • 0
  • 0
  • 0

  The successful Apollo 11 mission was certainly an astonishing technological triumph, but what is less well remembered now are that many programs preceded Apollo and were essential to its success. Project Mercury was one of those, and in many ways it represented the greatest step forward in terms of the conquest of space. Before Project Mercury, there was no certainty that a human could survive the rigors of a space launch or live outside Earth’s atmosphere. There was no agreement on just what an astronaut should be, and various individuals involved debated whether they should be pilots, technicians, scientists, or even merely observers in an automated craft. Before Project Mercury, no one was entirely certain what a rocket capable of taking a person into space would look like, or even whether building such a craft was within the capabilities of engineering in the 1950s. 
  Gemini also marked another important milestone as America finally surpassed the Soviet Union in space technology. Before Gemini, the US was playing a desperate game of catch-up as it attempted to match Soviet accomplishments. The last Project Mercury flight launched in May 1963, and before then, Russia had put the first satellite in Earth’s orbit and the first man in space and had followed these with longer flights than the tiny Mercury spacecraft. In terms of military significance, it was recognized that the ability to dominate space was very important, and to many people in America, it seemed that Russia was well on the way to doing this. No one could have guessed that it would be almost three years before the next American manned space flight occurred when Gemini 3 left the launch pad in March 1965. It seemed to many people that the Russian lead in space exploration had become unassailable and, in order to reestablish the credibility of the US space program, the Gemini flights simply had to succeed.

  Voir livre

• 

  Freight broker business startup...

  Randy Russell

  • 0
  • 0
  • 0

  This comprehensive guide serves as your essential roadmap, meticulously crafted to demystify the complex landscape of freight brokerage, providing aspiring entrepreneurs with the foundational knowledge and practical insights needed to launch a successful venture. 
  Within the pages of "Freight Broker Business Startup," you'll explore: 
  - Introduction to Freight Brokerage: Gain a comprehensive understanding of the fundamentals of freight brokerage, from the role of a broker in the supply chain to key industry terminology. 
  - Application Processes: Navigate the intricacies of applying for and obtaining the necessary licenses and permits. This guide provides step-by-step instructions to streamline the application process and ensure compliance with regulatory requirements. 
  - Business Training Requirements: Delve into the essential training needed to excel in the freight brokerage industry. From negotiation skills to customer relations, this guide covers the foundational aspects that will set you on the path to becoming a successful freight broker. 
  - Insider Tips: Benefit from insider insights and practical tips from industry professionals, offering valuable perspectives to guide you through the early stages of your freight brokerage business. 
  - User-Friendly Format: Designed with clarity in mind, the user-friendly format makes complex concepts accessible to beginners, ensuring a smooth learning curve for those entering the world of freight brokerage. 
  Embark on your entrepreneurial journey in the logistics industry—pick up "Freight Broker Business Startup" and lay the foundation for a thriving career in freight brokerage.

  Voir livre

• 

  Right Down + Circle: Tony Hawk's...

  Cole Nowicki

  • 0
  • 0
  • 0

  An exuberant, incisive look at how Tony Hawk’s Pro Skater transformed a culture 
   
  Going from a hobby toy for surfers to an Olympic sport, skateboarding has had a tumultuous history. Today, professional skateboarders land endorsement deals with Nike and Adidas, while popular television series like HBO’s Betty tell the stories of diverse crews of skaters living in New York City. So how did a fledgling subculture rise from its near-death knell in the ’90s to become ubiquitous today? It was simply a matter of finding the right messenger. 
   
  In 1999, the bestselling video game Tony Hawk’sPro Skater was released, and a new generation was exposed to skateboarding culture right in their very own homes. Kids and adults alike could now spend hours playing as actual skateboarders, learning the vernacular, listening to the music skateboarders loved, and having fun onscreen before trying to skate IRL in the driveway. 
   
  Right, Down + Circle explores how a video game starring the most famous pro skater in the world brought skateboarding culture ― and its ever-shifting markers of music, subversion, and coolness ― to the masses and ultimately transformed the culture it borrowed from in the process.

  Voir livre

• 

  Trinity - The Best-Kept Secret

  Jacques F. Vallée, Paola...

  • 0
  • 0
  • 0

  Uncover the shocking truth about the 1945 UFO crash in New Mexico, two years before the infamous Roswell incident. Renowned investigative journalist Paola Leopizzi Harris and French-born  information scientist Dr. Jacques F. Vallée join forces to reveal the details of this extraordinary event.  
  Through meticulous research and eyewitness accounts, Harris and Vallée reconstruct the events surrounding the crash, including the military's recovery of a nearly intact, avocado-shaped craft weighing several tons. This groundbreaking audiobook challenges the official narrative and raises fundamental questions about the intersection of UFO phenomena and military secrecy. 
  With new evidence and eyewitness testimony, "Trinity: The Best-Kept Secret" is a gripping and thought-provoking exploration of one of the most enduring unsolved mysteries of our time. Get ready to discover the truth that's been hidden in plain sight.

  Voir livre

• 

  Mathematical Methods for...

  Mark Hedges

  • 0
  • 0
  • 0

  Mathematical physics provides the essential framework for formulating and solving physical problems using mathematical methods. The foundations of mathematical physics are rooted in the application of mathematical structures, such as differential equations, linear algebra, and group theory, to describe the fundamental laws of nature. Physics relies heavily on mathematical formalism to express physical quantities, relationships, and conservation laws. The development of mathematical physics has enabled the discovery and prediction of new physical phenomena, from classical mechanics to quantum field theory. 
  The language of mathematical physics is built on the concept of physical observables represented by mathematical objects such as scalars, vectors, tensors, and operators. Scalars represent single-valued quantities, vectors represent quantities with both magnitude and direction, and tensors generalize vectors to higher dimensions. Operators, such as differential operators and linear operators, act on these mathematical objects to produce measurable physical outcomes. 
  Differential equations are central to mathematical physics, as they describe how physical quantities change with respect to one another. Ordinary differential equations (ODEs) govern the behavior of systems that depend on a single variable, such as the motion of a particle under a central force. Partial differential equations (PDEs) describe systems that depend on multiple variables, such as wave propagation and heat conduction. Solutions to differential equations provide the time evolution and spatial distribution of physical systems.

  Voir livre

• 

  Cardiac Cowboys - The Heroic...

  M.D. Gerald Imber

  • 0
  • 0
  • 0

  Cardiac Cowboys is the dramatic story of five deeply flawed geniuses who together—and in competition with each other—invented open-heart surgery against all conventional medical wisdom and saved millions of lives. 
   
   
   
  A decade after World War II, there was still no such thing as open-heart surgery, and yet half a million Americans were dying from heart disease every year. One in a hundred children would suffer and die from congenital heart disease as well, and doctors did little other than predict their deaths. After the first daring operation in 1954 and through the next three decades, five heroic surgeons braved the scorn of their peers, withstood fierce desperation, and faced possible death in order to devise procedures that would save overwhelming numbers of those doomed children and provide hope for a new life to all manner of heart-failing individuals. Devising and mastering heart transplants and bypass surgery, they invented artificial heart valves, the lifesaving pacemaker, and worked toward the holy grail of an artificial heart as their private and professional lives imploded. The story of the Cardiac Cowboys, their outsized personalities, and often self-destructive behavior is a saga more thrilling and exhilarating than fiction.

  Voir livre