jonathon betts (6 résultats)

Hardcover. Etat : new. Hardcover. Following one of the most inspiring and fascinating stories linked to the Royal Observatory, Greenwich, this book centres on the life and achievements of John Harrison - designer and builder of the first accurate marine chronometers.Inspired by the official prize offered in 1714 to anyone who could solve the problem of finding longitudinal position at sea, Harrison produced his four famous 'H' timepieces. In doing so, he helped revolutionise sea travel, saving many thousands of lives.John Harrison and the Quest for Longitude is the intriguing account of one man driven by the need to solve one of the greatest practical problems of his time. Following one of the most inspiring and fascinating stories linked to the Royal Observatory, Greenwich, this book centres on the life and achievements of John Harrison - designer and builder of the first accurate marine chronometers. Shipping may be from multiple locations in the US or from the UK, depending on stock availability.

Soft cover. Etat : New. 1st Edition. New book, never read. Pages clean and crisp, spine unbroken. 0520D.

Hardcover. Etat : new. Hardcover. Following one of the most inspiring and fascinating stories linked to the Royal Observatory, Greenwich, this book centres on the life and achievements of John Harrison - designer and builder of the first accurate marine chronometers.Inspired by the official prize offered in 1714 to anyone who could solve the problem of finding longitudinal position at sea, Harrison produced his four famous 'H' timepieces. In doing so, he helped revolutionise sea travel, saving many thousands of lives.John Harrison and the Quest for Longitude is the intriguing account of one man driven by the need to solve one of the greatest practical problems of his time. Following one of the most inspiring and fascinating stories linked to the Royal Observatory, Greenwich, this book centres on the life and achievements of John Harrison - designer and builder of the first accurate marine chronometers. Shipping may be from our UK warehouse or from our Australian or US warehouses, depending on stock availability.

Flexibound. Etat : Fair. No Jacket. Readable copy. Pages may have considerable notes/highlighting. ~ ThriftBooks: Read More, Spend Less.

Hardcover. Etat : new. Hardcover. Following one of the most inspiring and fascinating stories linked to the Royal Observatory, Greenwich, this book centres on the life and achievements of John Harrison - designer and builder of the first accurate marine chronometers.Inspired by the official prize offered in 1714 to anyone who could solve the problem of finding longitudinal position at sea, Harrison produced his four famous 'H' timepieces. In doing so, he helped revolutionise sea travel, saving many thousands of lives.John Harrison and the Quest for Longitude is the intriguing account of one man driven by the need to solve one of the greatest practical problems of his time. Following one of the most inspiring and fascinating stories linked to the Royal Observatory, Greenwich, this book centres on the life and achievements of John Harrison - designer and builder of the first accurate marine chronometers. Shipping may be from our Sydney, NSW warehouse or from our UK or US warehouse, depending on stock availability.

Original cloth boards. Etat : Very Good. Etat de la jaquette : Very Good-. First Edition; Second Impression. Some small thumb-stains on publication page. Some gentle marks on dustjacket; Original black cloth boards with gilt lettering on spine. Original illustrated dustjacket. Full colour illustrations throughout. Harrison Decoded: Towards a Perfect Pendulum Clock examines the genius of John Harrison through the making, theory & legacy of his extraordinary timekeeping work. Edited by Rory McEvoy & Jonathan Betts, this volume brings together research, technical analysis & historical insight to reveal how Harrison pursued accuracy in pendulum clocks. It explores design, materials, adjustments, trials & the wider horological context in which his ideas developed. Essential for collectors, horologists & historians, the book illuminates both the practical challenges & the lasting importance of Harrison's achievements, offering a clear, authoritative study of precision clockmaking at its highest level still today.; Octavo; xi, 183 pages.