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The art collector
A little boy who is not pleased with his own artistic efforts but treasures his great-grandmother's drawing goes on to collect art throughout his life.
Book
Nanofluids in Solar Thermal Collectors: Review and Limitations
Solar thermal collectors are systems that allow for the use of solar energy in thermal applications. These collectors utilize a heat transfer fluid to transport absorbed solar radiation to applications where they are needed. Scientists in a bid to improve the conversion efficiency of solar collectors have suggested different collector designs and improved collector materials. Over the last 25 years, the study of nanofluids and their applications have revolutionized material science, and nanotechnology has found applications in improving solar collector materials. This article reviews the impact of different nanomaterials on the efficiency of solar collectors. The study also outlines the limitations of applying nanofluids and discusses the long-term challenges of their application to solar collectors. Nanofluids have the potential to improve the overall efficiency of most solar collectors, however, the full potential of nanofluids in heat transfer applications cannot be completely achieved until some of the questions regarding hysteresis, stability, and the overall predictability of nanofluids are answered.
Journal Article
Art Market and Connoisseurship
The question whether or not seventeenthcentury painters such as Rembrandt and Rubens created the paintings which were later sold under their names, has caused many a heated debate. Much is still unknown about the ways in which paintings were produced, assessed, priced, and marketed. For example, did contemporary connoisseurs expect masters such as Rembrandt to paint their works entirely by their own hand? Who was credited with the ability to assess paintings? How did a paintingâs price relate to its quality? And how did connoisseurship change as the art market became increasingly complex? The contributors to this essential volume trace the evolution of connoisseurship in the booming art market of the seventeenth- and eighteenth centuries. Among them are the renowned Golden Age scholars Eric Jan Sluijter, Hans Van Miegroet and Neil De Marchi. It is not to be missed by anyone with an interest in the Old Masters and the early modern art market.
eBook
Collecting Across Cultures
In the early modern age more people traveled farther than at any earlier time in human history. Many returned home with stories of distant lands and at least some of the objects they collected during their journeys. And those who did not travel eagerly acquired wondrous materials that arrived from faraway places. Objects traveled various routes-personal, imperial, missionary, or trade-and moved not only across space but also across cultures. Histories of the early modern global culture of collecting have focused for the most part on EuropeanWunderkammern, or \"cabinets of curiosities.\" But the passion for acquiring unfamiliar items rippled across many lands. The court in Java marveled at, collected, and displayed myriad goods brought through its halls. African princes traded captured members of other African groups so they could get the newest kinds of cloth produced in Europe. Native Americans sought colored glass beads made in Europe, often trading them to other indigenous groups. Items changed hands and crossed cultural boundaries frequently, often gaining new and valuable meanings in the process. An object that might have seemed mundane in some cultures could become a target of veneration in another. The fourteen essays inCollecting Across Culturesrepresent work by an international group of historians, art historians, and historians of science. Each author explores a specific aspect of the cross-cultural history of collecting and display from the dawn of the sixteenth century to the early decades of the nineteenth century. As the essays attest, an examination of early modern collecting in cross-cultural contexts sheds light on the creative and complicated ways in which objects in collections served to create knowledge-some factual, some fictional-about distant peoples in an increasingly transnational world.
eBook