- Utility frequency (Wikipedia)
The utility frequency, (power) line frequency (American English) or mains frequency (British English) is the nominal frequency of the oscillations of alternating current (AC) in a wide area synchronous grid transmitted from a power station to the end-user. In large parts of the world this is 50 Hz, although in the Americas and parts of Asia it is typically 60 Hz. Current usage by country or region is given in the list of mains electricity by country.
- Nancy Pelosi (Wikipedia)
Nancy Patricia Pelosi (/pəˈloʊsi/ pə-LOH-see; née D’Alesandro; born March 26, 1940) is an American politician who served as the 52nd speaker of the United States House of Representatives from 2007 to 2011 and again from 2019 to 2023. A member of the Democratic Party, she was the first woman elected as U.S. House Speaker and the first woman to lead a major political party in either chamber of Congress, leading the House Democrats from 2003 to 2023. A member of the House since 1987, Pelosi currently represents California’s 11th congressional district, which includes most of San Francisco. She is the dean of California’s congressional delegation.