Statistically, the elevator is one of the safest ways to travel ever devised, far safer than the stairs beside it. Yet many of us feel a flicker of unease as the doors close. How did a machine that dangles us in the air on a cable become so extraordinarily safe?
Edward Callenford lifts the lid on the elevator: the ingenious safety brake that made skyscrapers possible, the counterweights and gearing that make lifting a full car almost effortless, the sensors and controllers that shuffle crowds through a busy tower, and the layers of redundancy that mean a snapped cable is a myth, not a menace. He also explores how elevators quietly shaped the modern city, turning the top floor from the servants' quarters into the penthouse.
Clear, reassuring, and full of original diagrams, this book reveals the hidden brilliance inside a machine you trust with your life every single day.
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Anbieter: Grand Eagle Retail, Bensenville, IL, USA
Paperback. Zustand: new. Paperback. Statistically, the elevator is one of the safest ways to travel ever devised, far safer than the stairs beside it. Yet many of us feel a flicker of unease as the doors close. How did a machine that dangles us in the air on a cable become so extraordinarily safe?Edward Callenford lifts the lid on the elevator: the ingenious safety brake that made skyscrapers possible, the counterweights and gearing that make lifting a full car almost effortless, the sensors and controllers that shuffle crowds through a busy tower, and the layers of redundancy that mean a snapped cable is a myth, not a menace. He also explores how elevators quietly shaped the modern city, turning the top floor from the servants' quarters into the penthouse.Clear, reassuring, and full of original diagrams, this book reveals the hidden brilliance inside a machine you trust with your life every single day. This item is printed on demand. Shipping may be from multiple locations in the US or from the UK, depending on stock availability. Bestandsnummer des Verkäufers 9798188600136
Anbieter: PBShop.store US, Wood Dale, IL, USA
PAP. Zustand: New. New Book. Shipped from UK. THIS BOOK IS PRINTED ON DEMAND. Established seller since 2000. Bestandsnummer des Verkäufers L0-9798188600136
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Anbieter: PBShop.store UK, Fairford, GLOS, Vereinigtes Königreich
PAP. Zustand: New. New Book. Delivered from our UK warehouse in 4 to 14 business days. THIS BOOK IS PRINTED ON DEMAND. Established seller since 2000. Bestandsnummer des Verkäufers L0-9798188600136
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Anbieter: California Books, Miami, FL, USA
Zustand: New. Print on Demand. Bestandsnummer des Verkäufers I-9798188600136
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Anbieter: AHA-BUCH GmbH, Einbeck, Deutschland
Taschenbuch. Zustand: Neu. Neuware - Statistically, the elevator is one of the safest ways to travel ever devised, far safer than the stairs beside it. Yet many of us feel a flicker of unease as the doors close. How did a machine that dangles us in the air on a cable become so extraordinarily safe Edward Callenford lifts the lid on the elevator: the ingenious safety brake that made skyscrapers possible, the counterweights and gearing that make lifting a full car almost effortless, the sensors and controllers that shuffle crowds through a busy tower, and the layers of redundancy that mean a snapped cable is a myth, not a menace. He also explores how elevators quietly shaped the modern city, turning the top floor from the servants' quarters into the penthouse.Clear, reassuring, and full of original diagrams, this book reveals the hidden brilliance inside a machine you trust with your life every single day. Bestandsnummer des Verkäufers 9798188600136
Anzahl: 2 verfügbar
Anbieter: CitiRetail, Stevenage, Vereinigtes Königreich
Paperback. Zustand: new. Paperback. Statistically, the elevator is one of the safest ways to travel ever devised, far safer than the stairs beside it. Yet many of us feel a flicker of unease as the doors close. How did a machine that dangles us in the air on a cable become so extraordinarily safe?Edward Callenford lifts the lid on the elevator: the ingenious safety brake that made skyscrapers possible, the counterweights and gearing that make lifting a full car almost effortless, the sensors and controllers that shuffle crowds through a busy tower, and the layers of redundancy that mean a snapped cable is a myth, not a menace. He also explores how elevators quietly shaped the modern city, turning the top floor from the servants' quarters into the penthouse.Clear, reassuring, and full of original diagrams, this book reveals the hidden brilliance inside a machine you trust with your life every single day. This item is printed on demand. Shipping may be from our UK warehouse or from our Australian or US warehouses, depending on stock availability. Bestandsnummer des Verkäufers 9798188600136
Anzahl: 1 verfügbar