Hinge Moments

Hinge Moments
Author: D. Michael Lindsay
Publisher: InterVarsity Press
Total Pages: 175
Release: 2021-04-27
Genre: Religion
ISBN: 0830841806

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In life we get opportunities to make decisions that will either change our lives for the better or pose problems for years to come. Exploring these "hinge moments," Gordon College president Michael Lindsay shares faith-based stories of success and failure from his ten-year study of other leaders, providing both practical and spiritual insights for making the most of each stage of life.

Hinge Moments of Sealed-internal-balance Arrangements for Control Surfaces

Hinge Moments of Sealed-internal-balance Arrangements for Control Surfaces
Author: Harry E. Murray
Publisher:
Total Pages: 46
Release: 1945
Genre: Aerodynamics
ISBN:

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Summary: The results of a theoretical analysis of the hinge-moment characteristics of various sealed-internal-balance arrangement for control surfaces are presented. The analysis considered overhangs sealed to various types of wing structure by flexible seals spanning gaps of various widths or sealed to the wing structure by a flexible system of linked plates. Leakage was not considered; the seal was assumed to extend the full spanwise length of the control surface. The effect of the developed width of the flexible seal and of the geometry of the structure to which the seal was anchored was investigated, as well as the effect of the gap width that is sealed.

Comparison of Hinge Moments for a Simple Delta Wing and a Delta-wing Orbiter Concept at Mach 6

Comparison of Hinge Moments for a Simple Delta Wing and a Delta-wing Orbiter Concept at Mach 6
Author: George C. Ashby
Publisher:
Total Pages: 28
Release: 1972
Genre: Mach number
ISBN:

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Elevon hinge moments were determined from measured surface pressures on a typical delta-wing shuttle orbiter model at selective deflection angles for comparison with the extensive experimental and analytical hinge-moment data previously reported for a simple 75 [degrees] delta wing with a trailing-edge control. The angles of attack were from 0 [degrees] to 55 [degrees] at elevondeflection angles of -45.5 [degrees], O [degrees], and 20°. The results show that the elevon hinge moments on the shuttle orbiter are essentially the same as those measured earlier for the more basic model. Also included is an appendix describing a cubic spline function technique used to determine the hinge moments from elevon surface-pressure measurements.

Collection and Analysis of Hinge-moment Data on Control-surface Tabs

Collection and Analysis of Hinge-moment Data on Control-surface Tabs
Author: Paul E. Purser
Publisher:
Total Pages: 570
Release: 1947
Genre: Aerofoils
ISBN:

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Various wind-tunnel data on the hinge-moment characteristics of control-surface tabs have been collected and analyzed. The data, all of which are for plain unbalanced tabs, were obtained from force tests of models in two- and three-dimensional flow and from pressure-distribution measurements on models in two-dimensional flow. Some data that show the effects of Mach number on tab hinge moments for representative conventional and NACA 6-series airfoil sections are presented.

Effect of Horizontal-tail Position on the Hinge Moments of an Unbalanced Rudder in Attitudes Simulating Spin Conditions

Effect of Horizontal-tail Position on the Hinge Moments of an Unbalanced Rudder in Attitudes Simulating Spin Conditions
Author: Ralph W. Stone (Jr.)
Publisher:
Total Pages: 560
Release: 1947
Genre: Airplanes
ISBN:

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An investigation was made in the Langley 15-foot free-spinning tunnel to determine the effect of horizontal-tail position on rudder hinge-moments at attitudes simulating spinning conditions. Hinge-moment measurements were made on an unbalanced rudder on a rectangular vertical tail for six positions of the horizontail tail. The hinge-moment measurements were supplemented by tuft tests to determine the air flow about the vertical tail.

The Power of Moments

The Power of Moments
Author: Chip Heath
Publisher: Simon and Schuster
Total Pages: 320
Release: 2017-10-03
Genre: Business & Economics
ISBN: 1501147765

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The New York Times bestselling authors of Switch and Made to Stick explore why certain brief experiences can jolt us and elevate us and change us—and how we can learn to create such extraordinary moments in our life and work. While human lives are endlessly variable, our most memorable positive moments are dominated by four elements: elevation, insight, pride, and connection. If we embrace these elements, we can conjure more moments that matter. What if a teacher could design a lesson that he knew his students would remember twenty years later? What if a manager knew how to create an experience that would delight customers? What if you had a better sense of how to create memories that matter for your children? This book delves into some fascinating mysteries of experience: Why we tend to remember the best or worst moment of an experience, as well as the last moment, and forget the rest. Why “we feel most comfortable when things are certain, but we feel most alive when they’re not.” And why our most cherished memories are clustered into a brief period during our youth. Readers discover how brief experiences can change lives, such as the experiment in which two strangers meet in a room, and forty-five minutes later, they leave as best friends. (What happens in that time?) Or the tale of the world’s youngest female billionaire, who credits her resilience to something her father asked the family at the dinner table. (What was that simple question?) Many of the defining moments in our lives are the result of accident or luck—but why would we leave our most meaningful, memorable moments to chance when we can create them? The Power of Moments shows us how to be the author of richer experiences.

Faith in the Halls of Power

Faith in the Halls of Power
Author: D. Michael Lindsay
Publisher: Oxford University Press
Total Pages: 353
Release: 2008-10-29
Genre: Religion
ISBN: 0199704562

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Evangelicals, once at the periphery of American life, now wield power in the White House and on Wall Street, at Harvard and in Hollywood. How have they reached the pinnacles of power in such a short time? And what does this mean for evangelicals--and for America? Drawing on personal interviews with an astonishing array of prominent Americans--including two former Presidents, dozens of political and government leaders, more than 100 top business executives, plus Hollywood moguls, intellectuals, athletes, and other powerful figures--D. Michael Lindsay shows first-hand how they are bringing their vision of moral leadership into the public square. This riveting volume tells us who the real evangelical power brokers are, how they rose to prominence, and what they're doing with their clout. Lindsay reveals that evangelicals are now at home in the executive suite and on the studio lot, and from those lofty perches they have used their influence, money, and ideas to build up the evangelical movement and introduce it to wider American society. They are leaders of powerful institutions and their goals are ambitious--to bring Christian principles to bear on virtually every aspect of American life. Along the way, the book is packed with fascinating stories and striking insights. Lindsay shows how evangelicals became a force in American foreign policy, how Fortune 500 companies are becoming faith-friendly, and how the new generation of the faithful is led by "cosmopolitan evangelicals." These are well-educated men and women who read both The New York Times and Christianity Today, and who are wary of the evangelical masses' penchant for polarizing rhetoric, apocalyptic pot-boilers, and bad Christian rock. Perhaps most startling is the importance of personal relationships between leaders--a quiet conversation after Bible study can have more impact than thousands of people marching in the streets. Faith in the Halls of Power takes us inside the rarified world of the evangelical elite--beyond the hysterical panic and chest-thumping pride--to give us the real story behind the evangelical ascendancy in America. "This important work should be required reading for anyone who wants to opine publicly on what American evangelicals are really up to." --Publishers Weekly (Starred Review) "For people wanting an understanding of how evangelicals have acquired so much power, money, and influence in the past 30 years, this is the ultimate insider's book." --Sojourners Magazine "Anybody who wants to understand the nexus between God and power in modern America should start here." --The Economist "Fascinating." --John Schmalzbauer, Wall Street Journal