Limnology Limnology Limnology ( ; from Greek λίμνη, "limne", "lake" and λόγος, "logos", "knowledge"), is the study of inland aquatic ecosystems. The study of limnology includes aspects of the biological, chemical, physical, and geological characteristics and functions of inland waters (running and standing waters, fresh and saline, natural or man-made). This includes the study of lakes, reservoirs, ponds, rivers, springs, streams, wetlands, and groundwater. A more recent sub-discipline of limnology, termed landscape limnology, studies, manages, and seeks to conserve these ecosystems using a landscape perspective, by explicitly examining connections between an aquatic ecosystem and its watershed. Recently, the need to understand
International Society for the Interdisciplinary Study of Symmetry International Society for the Interdisciplinary Study of Symmetry The International Symmetry Society ("International Society for the Interdisciplinary Study of Symmetry", abbreviated name SIS) is a non-profit organization registered in Hungary (Budapest, Vármegye u. 7. II. 3., H-1052). Its main objectives are: The topic was introduced for the first time by Russian and Polish scholars. Then in 1952, Hermann Weyl published his fascinating book "Symmetry", which was later translated into 10 languages. Since then, it became an attractive subject of research in various fields. A variety of manifestations of the principle of symmetry in sculpture, painting, architecture, ornament, and design, in