Say, Thomas (1787–1834), a United States naturalist. He wrote the first major American works on insects (American Entomology, 3 volumes, 1824–28) and shells (American Conchology, 2 volumes, 1830–34). Say was born in Philadelphia. He served as zoologist on the United States government expeditions, led by Stephen H. Long, to the Rocky Mountains (1819–20) and the source of the Minnesota River (1823). Say was curator of the American Philosophical Society, 1821–27, and professor of natural history at the University of Pennsylvania, 1822–28. He was a founding member of the Academy of Natural Sciences in Philadelphia.
Sustainable homes are becoming more and more popular as people become more aware of their carbon footprints. How are sustainable homes changing for the 21st century?
While some of us are stocking up on duct tape and bottled water, the government of Norway is preparing for the event that doomsday leaves some long-term survivors who need to rebuild. The Arctic vault in Svalbard is preparing for the worst case scenario.