21st Century Canon of Lunar Eclipses - Black and White Edition


Book Description

The 21st Century Canon of Lunar Eclipses - Black and White Edition contains diagrams, maps, and data for all 228 lunar eclipses occurring during the 100-year period from 2001 through 2100. The eclipse predictions are based on the Jet Propulsion Laboratory's DE430 - a computer ephemeris used for calculating high precision coordinates of the Sun and Moon for hundreds of years into the past and future. Section 1 of the 21st Century Canon presents basic fundamentals including eclipse classification, the visual appearance of each type of eclipse, and the Danjon Scale of eclipse brightness. Section 2 discusses the eclipse predictions, the major contact definitions, the enlargement of Earth's shadows, coordinates of the Sun and Moon, and Delta T. Section 3 looks at the frequency of lunar eclipses, extremes in penumbral and umbral eclipse magnitudes, durations of penumbral, partial and total eclipses, and eclipse seasons. A concise explanation of the data contained in the lunar eclipse catalog (Appendix A) appears in Section 4 while Section 5 offers a complete description of the diagrams and maps presented for each lunar eclipse in Appendices B and C. The primary content of the 21st Century Canon of Lunar Eclipses resides in the three appendices. Appendix A is a comprehensive catalog listing the essential characteristics of each eclipse. These include the calendar date and time of greatest eclipse, Delta T, lunation number, Saros series number, gamma, penumbral and umbral eclipse magnitudes, durations of the penumbral, partial and total phases, and the geographic location where the Moon appears at the zenith at greatest eclipse. Appendix B is an atlas of figures depicting the path of the Moon through Earth's shadows and maps identifying the geographic regions of visibility of each eclipse. The 228 figures are arranged twelve to a page. Other data on each figure include the eclipse type, calendar date and time of greatest eclipse, Saros series number, lunar node, Delta T, gamma, eclipse magnitudes, and phase durations. Appendix C zeros in on the 112 lunar eclipses from 2021 to 2070 with a detailed full-page path diagram and map of each eclipse. The 21st Century Canon of Lunar Eclipses is the expanded successor to the NASA publication Fifty Year Canon of Lunar Eclipses.




21st Century Canon of Solar Eclipses - Deluxe Black and White Edition


Book Description

The "21st Century Canon of Solar Eclipses" contains maps and data for all 224 solar eclipses occurring during the 100-year period from 2001 through 2100. The eclipse predictions are based on the Jet Propulsion Lab's DE405 - a computer ephemeris used for calculating high precision coordinates of the Sun and Moon for hundreds of years into the past and future. Section 1 of the Canon presents fundamental concepts including eclipse classification the visual appearance of each type of eclipse, safe eclipse viewing tips, and how duration changes with distance from the central line. Section 2 discusses the eclipse the predictions, the constants used, time measurement and Delta T. A statistical analysis of eclipse frequency, extremes in eclipse magnitude, greatest central duration and quincena combinations are covered in Section 3. A concise explanation of the data contained in the solar eclipse catalog (Appendix A) and detailed descriptions of the solar eclipse maps (Appendices B, C and D) appear in Sections 4 and 5.The primary content of the "21st Century Canon" resides in the four appendices. Appendix A is a comprehensive catalog listing the essential characteristics of each eclipse. These include the calendar date and time of greatest eclipse, Delta T, lunation number, Saros series, gamma, eclipse magnitude, geographic coordinates of greatest eclipse, Sun's altitude and azimuth, central path width and central line duration. Appendix B is an atlas of maps depicting the geographic regions of visibility of each eclipse. The zones of partial and central eclipse are plotted using an orthographic (global) map projection. The 224 maps are arranged twelve to a page permitting the assessment of eclipse visibility from any location on Earth. Appendix C contains zeros in on the 224 solar eclipses with a detailed full page map of each. Curves of Maximum Time and Curves of Eclipse Magnitude permit the estimation of time and magnitude from any geographic location. Finally, Appendix D plots the track of every central eclipse (total, annular and hybrid) on large scale maps to allow the identification of countries and major cities within each eclipse path.




21st Century Canon of Solar Eclipses - Black and White Edition


Book Description

The 21st Century Canon of Solar Eclipses - Black & White Edition contains maps and data for all 224 solar eclipses occurring during the 100-year period from 2001 through 2100. The eclipse predictions are based on the Jet Propulsion Lab's DE405 - a computer ephemeris used for calculating high precision coordinates of the Sun and Moon for hundreds of years into the past and future. Section 1 of the Canon presents fundamental concepts including eclipse classification the visual appearance of each type of eclipse, safe eclipse viewing tips, and how duration changes with distance from the central line. Section 2 discusses the eclipse the predictions, the constants used, time measurement and Delta T. A statistical analysis of eclipse frequency, extremes in eclipse magnitude, greatest central duration and quincena combinations are covered in Section 3. A concise explanation of the data contained in the solar eclipse catalog (Appendix A) and detailed descriptions of the solar eclipse maps (Appendices B, C and D) appear in Sections 4 and 5. The primary content of the 21st Century Canon resides in the four appendices. Appendix A is a comprehensive catalog listing the essential characteristics of each eclipse. These include the calendar date and time of greatest eclipse, Delta T, lunation number, Saros series, gamma, eclipse magnitude, geographic coordinates of greatest eclipse, Sun's altitude and azimuth, central path width and central line duration. Appendix B is an atlas of maps depicting the geographic regions of visibility of each eclipse. The zones of partial and central eclipse are plotted using an orthographic (global) map projection. The 224 maps are arranged twelve to a page permitting the assessment of eclipse visibility from any location on Earth. Appendix C contains zeros in on every solar eclipses from 2017 through 2066 with a detailed full page map of each. Curves of Maximum Time and Curves of Eclipse Magnitude permit the estimation of time and magnitude from any geographic location. Finally, Appendix D plots the track of every central eclipse (total, annular and hybrid) on large scale maps to allow the identification of countries and major cities within each eclipse path. The 21st Century Canon is the modern successor to the NASA publication "Fifty Year Canon of Solar Eclipses". It is available in both black & white and color editions.




21st Century Canon of Lunar Eclipses - Deluxe Full Color Edition


Book Description

The "21st Century Canon of Lunar Eclipses - Deluxe Full Color Edition" contains diagrams, maps, and data for all 228 lunar eclipses occurring during the 100-year period from 2001 through 2100. The eclipse predictions are based on the Jet Propulsion Laboratory's DE430 - a computer ephemeris used for calculating high precision coordinates of the Sun and Moon for hundreds of years into the past and future. Section 1 of the Canon presents basic fundamentals including eclipse classification, the visual appearance of each type of eclipse, and the Danjon Scale of eclipse brightness. Section 2 discusses the eclipse predictions, the major contact definitions, the enlargement of Earth's shadows, coordinates of the Sun and Moon, and Delta T. Section 3 looks at the frequency of lunar eclipses, extremes in penumbral and umbral eclipse magnitudes, durations of penumbral, partial and total eclipses, and eclipse seasons. A concise explanation of the data contained in the lunar eclipse catalog (Appendix A) appears in Section 4 while Section 5 offers a complete description of the diagrams and maps presented for each lunar eclipse in Appendices B and C.The primary content of the "21st Century Canon of Lunar Eclipses" resides in the three appendices. Appendix A is a comprehensive catalog listing the essential characteristics of each eclipse. These include the calendar date and time of greatest eclipse, Delta T, lunation number, Saros series number, gamma, penumbral and umbral eclipse magnitudes, durations of the penumbral, partial and total phases, and the geographic location where the Moon appears at the zenith at greatest eclipse. Appendix B is an atlas of figures depicting the path of the Moon through Earth's shadows and maps identifying the geographic regions of visibility of each eclipse. The 228 figures are arranged twelve to a page. Other data on each figure include the eclipse type, calendar date and time of greatest eclipse, Saros series number, lunar node, Delta T, gamma, eclipse magnitudes, and phase durations. Appendix C zeros in on the 228 lunar eclipses with a detailed full-page path diagram and map of each eclipse.




On Their Own Terms


Book Description

In On Their Own Terms, Benjamin A. Elman offers a much-needed synthesis of early Chinese science during the Jesuit period (1600-1800) and the modern sciences as they evolved in China under Protestant influence (1840s-1900). By 1600 Europe was ahead of Asia in producing basic machines, such as clocks, levers, and pulleys, that would be necessary for the mechanization of agriculture and industry. In the seventeenth and eighteenth centuries, Elman shows, Europeans still sought from the Chinese their secrets of producing silk, fine textiles, and porcelain, as well as large-scale tea cultivation. Chinese literati borrowed in turn new algebraic notations of Hindu-Arabic origin, Tychonic cosmology, Euclidian geometry, and various computational advances. Since the middle of the nineteenth century, imperial reformers, early Republicans, Guomindang party cadres, and Chinese Communists have all prioritized science and technology. In this book, Elman gives a nuanced account of the ways in which native Chinese science evolved over four centuries, under the influence of both Jesuit and Protestant missionaries. In the end, he argues, the Chinese produced modern science on their own terms.




Yearning for Yesterday


Book Description




The Philobiblon


Book Description

"Will always hold an honorable place for bibliophiles." — The University of Chicago Press One of the earliest treatises on the value of preserving neglected manuscripts, building a library, and book collecting, Richard De Bury's The Philobiblon was written in 1345 and circulated widely in manuscript form for over a century. The first printed edition appeared in Cologne in 1473, and several others soon followed as the invention of the printing press spread throughout the late Medieval world. The chapter titles of this legendary work reflect its nature, combining the author's love for and commitment to the importance of books and the knowledge they contain with thoughts on collecting them, lending them, teaching with them, and simply enjoying them: "That the Treasure of Wisdom is chiefly contained in books," "What we are to think of the price in the buying of books," "Who ought to be special lovers of books," and "Of the manner of lending all our books to students." The Prologue ends with the following thought: "And this treatise (divided into twenty chapters) will clear the love we have had for books from the charge of excess, will expound the purpose of our intense devotion, and will narrate more clearly than light all the circumstances of our undertaking. And because it principally treats of the love of books, we have chose after the fashion of the ancient Romans fondly to name it by a Greek word, Philobiblon." This volume offers modern bibliophiles a splendid edition of one of the first books ever to study, define, and, above all, praise their passion: the all-encompassing love of books.







21st Century Canon of Lunar Eclipses - Deluxe Color Edition


Book Description

The "21st Century Canon of Lunar Eclipses" contains diagrams, maps, and data for all 228 lunar eclipses occurring during the 100-year period from 2001 through 2100. The eclipse predictions are based on the Jet Propulsion Laboratory's DE430 - a computer ephemeris used for calculating high precision coordinates of the Sun and Moon for hundreds of years into the past and future. Section 1 of the Canon presents basic fundamentals including eclipse classification, the visual appearance of each type of eclipse, and the Danjon Scale of eclipse brightness. Section 2 discusses the eclipse predictions, the major contact definitions, the enlargement of Earth's shadows, coordinates of the Sun and Moon, and Delta T. Section 3 looks at the frequency of lunar eclipses, extremes in penumbral and umbral eclipse magnitudes, durations of penumbral, partial and total eclipses, and eclipse seasons. A concise explanation of the data contained in the lunar eclipse catalog (Appendix A) appears in Section 4 while Section 5 offers a complete description of the diagrams and maps presented for each lunar eclipse in Appendices B and C.The primary content of the "21st Century Canon of Lunar Eclipses" resides in the three appendices. Appendix A is a comprehensive catalog listing the essential characteristics of each eclipse. These include the calendar date and time of greatest eclipse, Delta T, lunation number, Saros series number, gamma, penumbral and umbral eclipse magnitudes, durations of the penumbral, partial and total phases, and the geographic location where the Moon appears at the zenith at greatest eclipse. Appendix B is an atlas of figures depicting the path of the Moon through Earth's shadows and maps identifying the geographic regions of visibility of each eclipse. The 228 figures are arranged twelve to a page. Other data on each figure include the eclipse type, calendar date and time of greatest eclipse, Saros series number, lunar node, Delta T, gamma, eclipse magnitudes, and phase durations. Appendix C zeros in on the 228 lunar eclipses with a detailed full-page path diagram and map of each eclipse.