steam-electric generating set
121Environmental impact of nuclear power — Nuclear power activities involving the environment; mining, enrichment, generation and geological disposal. The environmental impact of nuclear power results from the nuclear fuel cycle, operation, and the effects of nuclear accidents. The… …
122Electricity — (from the Greek word ήλεκτρον, (elektron), meaning amber, and finally from New Latin ēlectricus , amber like ) is a general term that encompasses a variety of phenomena resulting from the presence and flow of electric charge. These include many… …
123Nikola Tesla — Tesla, aged 37, 1893, photo by Sar …
124Deployment of solar power to energy grids — depends largely upon local conditions and requirements. Many industrialized nations are installing significant solar power capacity in their grids as a reliable economic supplement or alternative to other power sources. Long distance transmission …
125Electricity on Shabbat in Jewish law — Jews who observe the Shabbat (Sabbath) have the practice of refraining from turning electricity on or off during Shabbat. In most cases they also abstain from making adjustments to the intensity of an electrical appliance as well. Authorities of… …
126machine tool — machine tooled, adj. a power operated machine, as a lathe, used for general cutting and shaping of metal and other substances. [1860 65] * * * Stationary, power driven machine used to cut, shape, or form materials such as metal and wood. Machine… …
127science, history of — Introduction the history of science from its beginnings in prehistoric times to the 20th century. On the simplest level, science is knowledge of the world of nature. There are many regularities in nature that mankind has had to… …
128Northeast blackout of 1965 — A map of the states and provinces affected; not all areas within the political boundaries were blacked out. The Northeast blackout of 1965 was a significant disruption in the supply of electricity on November 9, 1965, affecting Ontario, Canada… …
