Author: Joseph Needham
Publisher: CUP Archive
ISBN: 9780521322768
Category : Science
Languages : en
Pages : 328
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Book Description
A reissue with a foreword and supplement, of a modern classic published in 1960. The invention of the mechanical clock was one of the most important turning points in the history of science and technology. This study revealed six centuries of mechanical clockwork preceding the first mechanical escapement clocks of the West of about AD 1300. Detailed and fully illustrated accounts of elaborate Chinese clocks are accompanied by a discussion of the social context of the Chinese inventions and an assessment of their possible transmission to medieval Europe. For this revised edition, Dr Joseph Needham has contributed a new foreword on recent research and perceptions. In a supplement John H. Combridge details a modern reconstruction of Su Sung's timekeeping device, which together with textual studies modifies our understanding of this important early technology.
Author: Philip Woodward
Publisher:
ISBN:
Category : Antiques & Collectibles
Languages : en
Pages : 184
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Book Description
The pendulum is a constant source of interest to scientists. Great and well-known inventors such as Galileo, Huygens, and Kelvin all devised mechanisms to maintain its even oscillations. Others such as John Harrison, Lord Grimthorpe, and William Shortt are known only in horological circles but contributed as much or more over three centuries. By writing a personal account of his own inventions and achievements in horology the author involves the reader in the history of precision time-keeping before the advent of atomic clocks and the quartz chip. Escapements, the mechanisms that drive pendulums, are a delight to the geometrical mind as well as a delicate and subtle challenge to the mechanical engineer. In their most refined form pendulum clocks not only keep astonishingly accurate time they are also sensitive enough to detect the ebb and flow of tides and even the ceaseless quivering of the Earth itself. Philip Woodward's deep knowledge of and passion for time-keeping mechanisms is evident throughout this highly readable and fascinating account of precision horology.
Author: Mike Michalowicz
Publisher: Penguin
ISBN: 0525534024
Category : Business & Economics
Languages : en
Pages : 274
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Book Description
Do you worry that your business will collapse without your constant presence? Are you sacrificing your family, friendships, and freedom to keep your business alive? What if instead your business could run itself, freeing you to do what you love when you want, while it continues to grow and turn a profit? It’s possible. And it's easier than you think. If you're like most entrepreneurs, you started your business so you could be your own boss, make the money you deserve, and live life on your own terms. In reality, you're bogged down in the daily grind, constantly putting out fires, answering an endless stream of questions, and continually hunting for cash. Now, Mike Michalowicz, the author of Profit First and other small-business bestsellers, offers a straightforward step-by-step path out of this dilemma. In Clockwork, he draws on more than six years of research and real life examples to explain his simple approach to making your business ultra-efficient. Among other powerful strategies, you will discover how to: Make your employees act like owners: Free yourself from micromanaging by using a simple technique to empower your people to make smart decisions without you. Pinpoint your business's most important function: Unleash incredible efficiency by identifying and focusing everyone on the one function that is most crucial to your business. Know what to fix next: Most entrepreneurs try to fix every inefficiency at once and end up fixing nothing. Use the "weakest link in the chain" method to find the one fix that will add the most value now. Whether you have a staff of one, one hundred, or somewhere in between, whether you're a new entrepreneur or have been overworked and overstressed for years, Clockwork is your path to finally making your business work for you.
Author: David Rooney
Publisher: National Geographic Books
ISBN: 1324021950
Category : History
Languages : en
Pages : 0
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Book Description
One of Smithsonian Magazine's Ten Best History Books of 2021 A captivating, surprising history of timekeeping and how it has shaped our world. For thousands of years, people of all cultures have made and used clocks, from the city sundials of ancient Rome to the medieval water clocks of imperial China, hourglasses fomenting revolution in the Middle Ages, the Stock Exchange clock of Amsterdam in 1611, Enlightenment observatories in India, and the high-precision clocks circling the Earth on a fleet of GPS satellites that have been launched since 1978. Clocks have helped us navigate the world and build empires, and have even taken us to the brink of destruction. Elites have used them to wield power, make money, govern citizens, and control lives—and sometimes the people have used them to fight back. Through the stories of twelve clocks, About Time brings pivotal moments from the past vividly to life. Historian and lifelong clock enthusiast David Rooney takes us from the unveiling of al-Jazari’s castle clock in 1206, in present-day Turkey; to the Cape of Good Hope observatory at the southern tip of Africa, where nineteenth-century British government astronomers moved the gears of empire with a time ball and a gun; to the burial of a plutonium clock now sealed beneath a public park in Osaka, where it will keep time for 5,000 years. Rooney shows, through these artifacts, how time has been imagined, politicized, and weaponized over the centuries—and how it might bring peace. Ultimately, he writes, the technical history of horology is only the start of the story. A history of clocks is a history of civilization.
Author: Klaus Maurice
Publisher:
ISBN:
Category :
Languages : en
Pages : 321
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Book Description
Author: E. V. Odle
Publisher: BoD – Books on Demand
ISBN: 3387070934
Category : Fiction
Languages : en
Pages : 214
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Book Description
Reproduction of the original. The publishing house Megali specialises in reproducing historical works in large print to make reading easier for people with impaired vision.
Author: Philip Pullman
Publisher: Scholastic Paperbacks
ISBN: 9780590129985
Category : Juvenile Fiction
Languages : en
Pages : 112
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Book Description
Long ago in Germany, a storyteller's story and an apprentice clockwork-maker's nightmare meet in a menacing, lifelike figure created by the strange Dr. Kalmenius.
Author: James Smith Rudolph
Publisher: Harper Collins
ISBN: 0060910666
Category : Games & Activities
Languages : en
Pages : 44
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Book Description
Cut this book into 160 pieces, glue them together, and have a paper clock operated by weights that keeps perfect time and can be rewound and regulated.
Author: Tara Sim
Publisher: Simon and Schuster
ISBN: 1510706224
Category : Young Adult Fiction
Languages : en
Pages : 356
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Book Description
“I was in an accident. I got out. I'm safe now.” An alternate Victorian world controlled by clock towers, where a damaged clock can fracture time—and a destroyed one can stop it completely. A prodigy mechanic who can repair not only clockwork, but time itself, determined to rescue his father from a Stopped town. A series of mysterious bombings that could jeopardize all of England. A romance that will shake the very foundations of time. The first book in a dazzling new steampunk-fantasy trilogy, Timekeeper introduces a magical world of mythology and innovation that readers will never want to leave.
Author: Matthew J. Kirby
Publisher: Scholastic Inc.
ISBN: 054532307X
Category : Juvenile Fiction
Languages : en
Pages : 385
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Book Description
Three ordinary children are brought together by extraordinary events. . . Giuseppe is an orphaned street musician from Italy, who was sold by his uncle to work as a slave for an evil padrone in the U.S. But when a mysterious green violin enters his life he begins to imagine a life of freedom.Hannah is a soft-hearted, strong-willed girl from the tenements, who supports her family as a hotel maid when tragedy strikes and her father can no longer work. She learns about a hidden treasure, which she knows will save her family -- if she can find it.
