The Encyclopedia Americana, Volume 7Grolier Incorporated, 1990 - Encyclopedias and dictionaries |
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Page 90
CLOCK 記 CLOCK T CLOCK CLOCK CLOCK PARADOX - CLOETE CLOG. 90 DE WYS , INC . SPANISH SANDGLASS of the 17th century ... clocks employed a device called a fusee to equalize the force of the uncoiling spring . The spring is contained in a ...
CLOCK 記 CLOCK T CLOCK CLOCK CLOCK PARADOX - CLOETE CLOG. 90 DE WYS , INC . SPANISH SANDGLASS of the 17th century ... clocks employed a device called a fusee to equalize the force of the uncoiling spring . The spring is contained in a ...
Page 94
CLOCK CLOCK PARADOX - CLOETE CLOG DANCE - CLOISTER CLOOTS -. Terry & Andrews clock with an ogee style case and a 30 ... clocks that are now sought after by collectors . In the 1840's Chaun- cey Jerome began the manufacture and export to ...
CLOCK CLOCK PARADOX - CLOETE CLOG DANCE - CLOISTER CLOOTS -. Terry & Andrews clock with an ogee style case and a 30 ... clocks that are now sought after by collectors . In the 1840's Chaun- cey Jerome began the manufacture and export to ...
Page 95
... clock more accurate than the Shortt clock . In 1942 the Greenwich Observatory replaced its Shortt clocks with quartz crystal clocks . The most accurate clocks utilize the oscilla- tions of atoms and molecules for regular motion . These ...
... clock more accurate than the Shortt clock . In 1942 the Greenwich Observatory replaced its Shortt clocks with quartz crystal clocks . The most accurate clocks utilize the oscilla- tions of atoms and molecules for regular motion . These ...
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