Robert J. Matthys – författare
Visar alla böcker från författaren Robert J. Matthys. Handla med fri frakt och snabb leverans.
2 produkter
Accurate Clock Pendulums
E-bok, 2004
1130 kr
Lägg i varukorg
The Shortt clock, made in the 1920s, is the most famous accurate clock pendulum ever known, having an accuracy of one second per year when kept at nearly constant temperature. Almost all of a pendulum clock''s accuracy resides in its pendulum. If the pendulum is accurate, the clock will be …
Accurate Clock Pendulums
Inbunden, 2004
2533 kr
Lägg i varukorg
The Shortt clock, made in the 1920s, is the most famous accurate clock pendulum ever known, having an accuracy of one second per year when kept at nearly constant temperature. Almost all of a pendulum clock's accuracy resides in its pendulum. If the pendulum is accurate, the clock will be accurate. …
