 Then it was found that seventy-five years were added, at a single step, to the period during which the history of the moon's motion could be written. Previously this history was supposed to commence with the observations of Bradley, at Greenwich, about...  The Observatory - Page 1871910Full view - About this book
 | Simon Newcomb - 1903 - 448 pages
...were spent in making all the calculations I have described. Then it was found that seventy-five years were added, at a single step, to the period during...less degree of accuracy thirty years farther still. Hansen's tables were found to deviate from the truth, in 1675 and subsequent years, to a surprising... | |
 | 1909 - 510 pages
...or four years were spent in making all the calculations. Then it was found that seventy-five years were added, at a single step, to the period during...less degree of accuracy thirty years farther still." In 1884 there appeared another of Newcomb's famous investigations, his ' Measure of the Velocity of... | |
 | Francis Rolt-Wheeler - 1909 - 376 pages
...were spent in making all the calculations I have described. Then it was found that seventy-five years were added, at a single step, to the period during...now it was extended back to 1675, and with a less decree of accuracy thirty years farther still. Hansen's tables were found to deviate from the truth... | |
 | 1910 - 526 pages
...thus had recalled to our attention his memorable visit to Paris in search of records of occultations of stars by the Moon, and his success in finding them....during which the history of the Moon's motion could be wrifteu. Previously this history was supposed to commence with the observations of Bradley, at Greenwich,... | |
 | National Academy of Sciences (U.S.) - 1924 - 240 pages
...ever made. Three or four years were spent in making all the calculations * * *. Seventy-five years were added, at a single step, to the period during...extended back to 1675, and with a less degree of accuracy 30 years further still. Hansen's tables were found to deviate from the truth, in 1675 and subsequent... | |
 | 1898 - 984 pages
...were spent in making all the calculations I have described. Then it was found that seventy-five years were added, at a single step, to the period during...less degree of accuracy thirty years farther still. Hansen's tables were found to deviate from the truth, in 1675 and subsequent years, to a surprising... | |
 | 1924 - 232 pages
...ever made. Three or four years were spent hi making all the calculations * * *. Seventy-five years were added, at a single step, to the period during...extended back to 1675, and with a less degree of accuracy 30 years further still. Hansen's tables were found to deviate from the truth, in 1675 and subsequent... | |
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