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A Dubious Old Master Unnerves the Art World
A Dubious Old Master Unnerves the Art World By NINA SIEGAL OCT. 26, 2016 Continue reading the main story Share This Page Share Tweet Pin Email More Save Photo Sotheby’s declared “Portrait of a Man,” previously attributed to Frans Hals, a “modern forgery.” Credit Sotheby's AMSTERDAM — The painting convinced experts at the Louvre. Top French cultural officials declared it a national treasure. Dutch curators at the Mauritshuis and the Rijksmuseum joined the chorus of scholars who decided the enigmatic portrait of a man dressed in black was an undiscovered masterwork by Frans Hals. To many, “Portrait of a Man” was that rare find, a truly great old master painting that had simply never surfaced. In 2011, Sotheby’s auction house in New York brokered a private sale to an art collector for about $10 million. This month, though, Sotheby’s declared the work a “modern forgery.” The portrait was linked to a lower-profile event back in March, when the French poli...
How do hurricanes form?
How do hurricanes form? Share: Tweet Hurricane Fran. Image made from GOES satellite data. Hurricanes are the most violent storms on Earth. People call these storms by other names, such as typhoons or cyclones, depending on where they occur. The scientific term for all these storms is tropical cyclone . Only tropical cyclones that form over the Atlantic Ocean or eastern Pacific Ocean are called "hurricanes." Whatever they are called, tropical cyclones all form the same way. Tropical cyclones are like giant engines that use warm, moist air as fuel. That is why they form only over warm ocean waters near the equator. The warm, moist air over the ocean rises upward from near the surface. Because this air moves up and away from the surface, there is less air left near the surface. Another way to say the same thing is that the warm air rises, causing an area of lower air pressure below. A cumulonimbus cloud. A tropical cyclone has so many ...
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