Speleology by a large number of human activities. Dam construction, limestone quarrying, water pollution and logging are just some of the disasters that can devastate or destroy underground biological communities. Speleologists also work with archaeologists in studying underground ruins, tunnels, sewers and aqueducts, such as the various inlets and outlets of the Cloaca Maxima in Rome. Speleology Speleology is the scientific study of caves and other karst features, their make-up, structure, physical properties, history, life forms, and the processes by which they form (speleogenesis) and change over time (speleomorphology). The term "speleology" is also sometimes applied to the recreational activity of
The Principles of Scientific Management only be realized after a motion and time study by a competent man. While there are perhaps "forty, fifty, or a hundred ways of doing each act in each trade", "there is always one method and one implement which is quicker and better than any of the rest". In this section, Taylor explained his principles of scientific management. He starts by describing what he considered the best system of management then in use, the system of "initiative and incentive". In this system, management gives incentives for better work, and workers give their best effort. The form of payment is practically