#infrared

#painting
Hidden Madonna and Child Painting Found Underneath Botticelli's Painting of Jesus Christ, "Man of Sorrows"Infrared images of Botticelli's $40 million painting Man of Sorrows revealed that underneath its layers there is a different image entirely—an abandoned composition of a type of Greek icon called the "Madonna of tenderness" cradling the Christ Child.Chris Apostle, senior vice president of Sotheby's in New York, discerned an upside-down drawing of Madonna and Child with some white underpainting. Such under-drawings were not unusual, as panels could be quite costly in the Renaissance. It was possible that Botticelli recycled the panel to paint the extraordinary Man of Sorrows.The 16th century Man of Sorrows is unusual; Christ is off-center with his head tilted slightly, projecting not an iconic rigidness, but a profound emotional charge. Perhaps this will make it stand out when it is due to be sold at Sotheby's later this month.Images: Sotheby's#Botticelli #ManofSorrows #Madonna #MadonnaAndChild #MadonnaofTenderness #Renaissance #painting #infrared
#metamaterial
'Mirror Fabric' Cools Wearer by 5°CNow this is a (literally) cool shirt!Chinese engineers Ma Yaoguang of Zhejiang University and Tao Guangming of Huazhong University of Science and Technology created a new metamaterial fabric that cools the wearer by 5°C.The new metafabric, made of polylactic acid and synthetic fiber blend with titanium dioxide nanoparticles scattered throughout - used chemical bonds to absorb body heat and re-emit its energy into space as mid-infrared radiation. The nanoparticles also reflect UV, visible, and near-infrared spectrum, further cooling the wearer. While the fabric can be made into a regular shirt, "optically, it's a mirror," said Tao.#shirt #cooling #fabric #metafabric #metamaterial #titaniumdioxide #nanoparticle #infrared #mirror