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13/09/2024
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Marvels of Scientific Invention

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Chapter: 20 | Listen:

This is a chronicle of the 19 most interesting inventions of the early 20th century. Some of the inventions are still in use and of considerable impact today, while others are examples of the strong belief in progress prevalent at the time would probably be frowned upon today. In this way, the author’s account of how ice was made at the time will still be very interesting for readers today, but an account of how dynamite was going to be used in farming may be seen as humorous to the contemporary reader. The subjects are as varied as science herself is, and any reader and listener should find a subject matching his or her own taste. – Summary by Carolin     [chương_files]  

13/09/2024
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Romance of Modern Engineering

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Chapter: 19 | Listen:

As it would be impossible to treat, in the compass of a few hundred pages, all the great engineering feats of modern times without reducing individual accounts to uninteresting brevity, the author has preferred, where selection is possible, to take typical instances of engineering practice, and, by the aid of comparatively detailed descriptions, to place the reader in a position to appreciate them and similar undertakings. – Summary by Adapted from the Preface     [chương_files]  

13/09/2024
Silent Sentinels: Protective Relays for A-C and D-C Systems cover

Silent Sentinels: Protective Relays for A-C and D-C Systems

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Chapter: 13 | Listen: 1

Possibly the first book concerning the protective relays and schemes used in the generation, transmission, and distribution of electric power. While the technology has changed over the last century, incredibly much of the fundamental theory remains the same. – Summary by Rick Jay     [chương_files]  

08/08/2024
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Pilot’s Handbook of Aeronautical Knowledge FAA-H-8083-25A

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Chapter: 75 | Listen:

“The Pilot’s Handbook of Aeronautical Knowledge provides basic knowledge that is essential for pilots. This handbook introduces pilots to the broad spectrum of knowledge that will be needed as they progress in their pilot training. Except for the Code of Federal Regulations pertinent to civil aviation, most of the knowledge areas applicable to pilot certification are presented. This handbook is useful to beginning pilots, as well as those pursuing more advanced pilot certificates.” (Summary from the preface) Study of the handbook should include the PDF from the FAA, which is available at http://www.faa.gov/regulations_policies/handbooks_manuals/.     [chương_files]  

05/06/2024
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Early History of the Airplane

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Chapter: 3 | Listen: 2

The Brothers Orville and Wilbur Wright made the first controlled, powered and sustained heavier-than-air flight, on 17th December 1903. They were not the first to build and fly aircraft, but they invented the controls that were necessary for a pilot to steer the aircraft, which made fixed wing powered flight possible. The Early History of the Airplane consists of three short essays about the beginnings of human flight. The second essay retells the first flight: This flight lasted only 12 seconds, but it was nevertheless the first in the history of the world in which a machine carrying a man had raised itself by its own power into the air in full flight, had sailed forward without reduction of speed and had finally landed at a point as high as that from which it started. (Introduction by Availle)     [chương_files]  

24/05/2024
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Seeking a Human Spaceflight Program Worthy of a Great Nation

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Chapter: 19 | Listen: 8

“The [Review of U.S. Human Space Flight Plans Committee] shall conduct an independent review of ongoing U.S. human space flight plans and programs, as well as alternatives, to ensure the nation is pursuing the best trajectory for the future of human space flight – one that is safe, innovative, affordable, and sustainable. The Committee should aim to identify and characterize a range of options that spans the reasonable possibilities for continuation of U.S. human space flight activities beyond retirement of the Space Shuttle. The identification and characterization of these options should address the following objectives: a) expediting a new U.S. capability to support utilization of the International Space Station (ISS); b) supporting missions to the Moon and other destinations beyond low Earth orbit (LEO); c) stimulating commercial space flight capability; and d) fitting within the current budget profile for NASA exploration activities.” This is their final report. – Summary by from the Committee Charter     [chương_files]