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Pub. Date
2014.
Language
English
Description
Garbage in, garbage out is a famous expression in computer science, underscoring the importance of starting with reliable data. Learn how data is prepared to remove errors and ambiguities. As an example, see how the US Postal Service perfected machines that can read hastily scribbled addresses.
Pub. Date
2014.
Language
English
Description
Graphics have long been a compelling way to present and understand data. Survey some unusually effective graphics from the pre-computer era. Then explore the wealth of graphical tools available today. Graphics can reveal new information, but they can also obscure it when used poorly.
Pub. Date
2014.
Language
English
Description
Probe the power of decision trees by breaking down the demographics of survivors of the Titanic disaster, an analysis that tells the tragic story of events aboard the sinking ship. Then test decision trees in other applications, marveling at their ability to carve quickly through data.
Pub. Date
2014.
Language
English
Description
Humans are experts at pattern recognition, which is a key skill in data analysis. But when are patterns real and when are they imagined? Study some surprising correlations between apparently unrelated phenomena, asking whether there is a cause-and-effect relation or mere coincidence is involved.
Pub. Date
2014.
Language
English
Description
Mobile payment is a rising trend that is impacting the global marketplace and may someday become the "de facto standard" for monetary transactions, replacing your timeworn credit card, checkbook and possibly even cash itself. In this report expert Barry Sloane, CEO and President of Newtek Business Services, explores the world of mobile payment and offers advice and best practices that will help organizations come up to speed with this emerging paradigm....
Pub. Date
2014.
Language
English
Description
Today's modern supply chains are extremely complex and in large organizations, often involve a web of third-party service providers managing mission-critical business functions and operations. A breakdown at any point in this service delivery chain can be catastrophic. Therefore, enterprises must be "on game" when it comes to building out their governance and risk management plans and capabilities. In this report, expert Tom Young, of Information...
Author
Language
English
Formats
Description
"In Tools and Weapons, Brad Smith and Carol Ann Browne take us into the cockpit of one of the world's largest and most powerful tech companies as it finds itself in the middle of some of the thorniest emerging issues of our time. These are challenges that come with no preexisting playbook, including privacy, cybercrime and cyberwar, social media, the moral conundrums of artificial intelligence, big tech's relationship to inequality, and the challenges...
Pub. Date
2023.
Language
English
Description
Close by probing future developments in air and space flight. See these two realms combined in two vehicles: the White Knight aircraft that launches the Space Ship One capsule, and the proposed Mars atmospheric flyer. Consider technically possible devices such as the space elevator, solar-powered aircraft, and personal air vehicles. And that's just the beginning, for the sky is truly the limit!
Pub. Date
2023.
Language
English
Description
On a typical weekday, five to ten thousand aircraft are in the air over the U.S. at a given moment, flying to different cities at varying speeds and different altitudes. Survey the methods, tools, and jargon of air traffic controllers, who keep this traffic moving safely and expeditiously. Also look ahead to next-generation enhancements in the air traffic control system.
Pub. Date
2023.
Language
English
Description
Roll up your sleeves and learn how to design an aircraft, using an approach that has hardly changed in a century of building new airplanes. Start out by determining the weight values, maximum lift coefficient, wing loading, and thrust-to-weight ratio. Next lay out a configuration. Finally, iterate, making modifications and adjustments to perfect your vehicle.
Pub. Date
2023.
Language
English
Description
Automated flight systems are increasingly used in human-piloted aircraft, where their nearly fail-safe expertise creates some unusual problems. Also look at remotely piloted vehicles, also called drones. Pioneered by the military, these are taking to the sky for a variety of practical civilian missions, including recreational uses.
Pub. Date
2023.
Language
English
Description
Now return to Earth, analyzing the problem of decelerating from orbital or escape speed to a gentle touchdown on land or water. Calculate the amount of energy that must be lost during the plunge through the atmosphere, and consider three approaches to reentry, including that of the Space Shuttle, which unfortunately ended tragically for Columbia in 2003. Also look at the dire reentry scenario faced by Apollo 13 in 1970.
Pub. Date
2023.
Language
English
Description
Focus on the science and engineering of the flight instruments. First, look at the hazards faced by even experienced pilots in the era before the altimeter and attitude indicator, learning how these vital instruments work. Then consider the importance of the airspeed indicator, turn coordinator, heading indicator, and vertical speed indicator.
Pub. Date
2023.
Language
English
Description
Enter the realm of extreme flight, exploring how fast and how high a plane can go. The answers are remarkably precise and help define a given aircraft's flight envelope. Learn how aeronautical engineers calculate parameters such as airspeed for best climb angle, service ceiling, absolute ceiling, time to climb, stall speed, maximum speed, and speed for optimal cruise.
Pub. Date
2023.
Language
English
Description
How did two world-class pilots coax their glider to a new altitude record? Focus on this feat as a lesson in the key principles of winged flight - including angle of attack, lift, drag, thrust, and weight. Also explore "the miracle on the Hudson," when airline pilot Chesley Sullenberger glided his jet to an emergency water landing. Close your first lesson with an investigation of the control inputs: yaw, roll, and pitch.
Pub. Date
2023.
Language
English
Description
Propeller-driven aircraft drop sharply in efficiency at high fractions of the speed of sound. For sustained high-speed flight, a different propulsion system is needed - the jet engine. Trace the history of jets and their super-efficient variant used on commercial airliners - the high-bypass turbofan, a machine so intricate and beautiful that a piece of one is on display at the Museum of Modern Art.
Pub. Date
2023.
Language
English
Description
For anyone who gets the jitters during heavy turbulence, fear not: the plane is designed to take it! Follow the evolution of airframes from wood to metal to today's composite materials. Consider the problem of designing a sturdy structure that is still light enough to fly efficiently. Also look at tragic accidents that revealed the limits of certain materials and led to safer planes.
Pub. Date
2023.
Language
English
Description
Venture beyond Earth to the realm of the planets. Interplanetary trajectories require exquisite timing so that the target planet is in exactly the right spot when the spacecraft arrives, often by a Hohmann transfer ellipse. Consider two fuel-saving approaches to these marathon journeys - gravity assists and ion propulsion.
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