Field Notes on Science and Nature A Book by Michael R. Canfield www.hup.harvard.edu An endless living worldWhy Sketch?Letters to the FutureOne and a Half Cheers for List-KeepingLinking Researchers Across Generations+8 More The Student, The Fish, and Agassiz
Weathering Steel A Material en.wikipedia.org Weathering steel, often referred to by the genericised trademark COR-TEN steel and sometimes written without the hyphen as corten steel, is a group of steel alloys which were developed to eliminate the need for painting, and form a stable rust-like appearance after several years' exposure to weather. The name COR-TEN refers to the two distinguishing properties of this type of steel: corrosion resistance and tensile strength. Dark satanic steelTilted Arc decay