Back-to-back connection: In HVDC terms, links used to connect neighboring grids are often referred to as “back-to-back” connections, indicating that the distance between the two grids is minimal. Such connections are able to link independent power grids, including those operating at different frequencies, and enable power to flow from one grid to
ALIENS. Intelligent races who are not EARTH HUMANS.The term as such is never used for non-intelligent species, however unearthly, though in TECHJARGON these may be called Alien Life Forms.Nor is it used for Earth Humans who must register with the immigration service.
It is a special occasion when you capture that one in a million shot, when you witness an amazing spectacle and have your video camera at your side.
2018-5-19 Fissionable Materials. There are three isotopes known which are practical for use as fission explosives. These are U-235, Pu-239, and U-233.
2018-8-23MARTINDALE''S CALCULATORS ON-LINE CENTER ENGINEERING CENTER MECHANICAL ENGINEERING CENTER: A-L (Calculators, Applets, Spreadsheets, and where Applicable includes
2008-3-4Chronology of the Union Carbide Corporation . September 1999: Dow Chemical to buy Union Carbide Click here for news from Dow Chemical Click here for news from Union Carbide
2018-9-1James Edward Hansen (born 29 March 1941) is an American adjunct professor directing the Program on Climate Science, Awareness and Solutions of the Earth Institute at Columbia University.He is best known for his research in climatology, his 1988 Congressional testimony on climate change that helped raise broad awareness
2018-9-2Platinum is a chemical element with symbol Pt and atomic number 78. It is a dense, malleable, ductile, highly unreactive, precious, silverish-white transition metal.Its name is derived from the Spanish term platina, meaning "little silver".. Platinum is a member of the platinum group of elements and group 10 of the periodic table of
Comprehensive and meticulously documented facts about energy. Learn about the science of energy, the pros and cons of different energy technologies, public policies, and
2011-1-4Sulfur Hexafluoride (SF6) is an excellent gaseous dielectric for high voltage power applications. It has been used extensively in high voltage circuit breakers and other switchgears employed by the power industry. Applications for SF6 include gas insulated transmission lines and’gas insulated