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The Moon that Wasn't
The planet Venus is the closest neighbour to the Earth and in several respects similar to our globe. It revolves around the Sun at an average distance of 0. 72 astronomical units, in an elliptical orbit of eccentricity 0. 007. The corresponding 3 numbers for the Earth are 1 and 0. 017. The mean density of Venus is 5. 2 g/cm , 3 that of the Earth 5. 5 g/cm . Venus’ acceleration of gravity at its equator is 8. 9 2 2 m/s , compared with 9. 8 m/s at the Earth. The escape velocity is 10. 4 km/s, while the corresponding ?gure of the Earth is 11. 2 km/s. Although the mass of Venus is somewhat smaller than that of the Earth – the ratio is M /M =0. 815 V E – the diameters of the two planets are almost the same. In other words, Venus is indeed a sister planet of the Earth. In earlier times, when almost nothing was known about the physical con- tions of Venus, the similarity appeared even stronger than today. Not only was Venus’ period of rotation thought to be close to that of the Earth, it was also p- sible (and indeed common) to imagine intelligent life on Venus.
The Future of Project Management
Modern project management is different from what it was ten years ago. New methods and tools have been developed, the number of projects and members in project teams has increased, professionalism in project management has generally increased, and projects have become highly complex. Parallel to this, artificial intelligence, automation, information and communication technology, human resources management, and many other areas are being developed, which will continue to impact project management in the future significantly. At the same time, new generations of young people are entering the labour market with different needs and expectations for project work. The authors of the book provide decision-makers, project workers, and students with an insight into the modern challenges of project management due to digitization, artificial intelligence and project economy. The book is based on knowledge of classic management principles but does not follow them blindly, arguing that modern project management is based on people, their values, and the intelligent use of methods, techniques, and emerging technologies.
The Expression of the Passions
In 1688, Charles Le Brun, a French academician, delivered a lecture on expression that was so popular it was published in sixty-three separate editions and influenced all discussion of the subject throughout Europe for over a century. This book reconstructs and translates the text of the lecture (badly garbled in all previous versions), explores the context in which it was conceived, delivered, received, and finally rejected, and reproduces the images that accompanied the lecture.
Fifteenth- to Eighteenth-century European Drawings
"Early European art was a consuming interest of both Robert Lehman and his father, Philip Lehman, an interest reflected in the remarkable number and quality of drawings they owned from the fifteenth and early sixteenth centuries. In addition to an important group of early German drawings, the collection includes a "Saint Paul" from a series associated with Jan van Eyck and the famous "Scupstoel" from the circle of Rogier van der Weyden, the only design for a decorative sculpture to survive from the fifteenth century. The great artists of the seventeenth century, Peter Paul Rubens, Jacob Jordaens, Claude Lorrain, and Rembrandt among them, are also represented, Rembrandt by seven drawings, inc...
The Cambridge History of Science: Volume 4, Eighteenth-Century Science
The fullest and most complete survey of the development of science in the eighteenth century.
Valentin de Boulogne
Following Caravaggio's death in 1610, the French artist Valentin de Boulogne (1591-1632) emerged as one of the great champions of naturalistic painting. The eminent art historian Roberto Longhi honored him as "the most energetic and passionate of Caravaggio's naturalist followers." In Rome, Valentin—who loved the tavern as much as the painter's pallette—fell in with a rowdy confederation of artists but eventually received commissions from some of the city's most prominent patrons. It was in this artistically rich but violent metropolis that Valentin created such masterworks as a major altarpiece in Saint Peter's Basilica and superb renderings of biblical and secular subjects—until his ...
