Jonathon betts editors (1 résultats)

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.…