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Beckman Model M pH Meter, 1937 [1] Beckman model 72 pH meter, 1960 781 pH/Ion Meter pH meter by Metrohm. A pH meter is a scientific instrument that measures the hydrogen-ion activity in water-based solutions, indicating its acidity or alkalinity expressed as pH. [2]
Tản Viên Sơn Thánh (Chữ Hán: 傘圓山聖, 304 BCE - ?), or Sơn Tinh (山精) is one of The Four Immortals in traditional Vietnamese mythology.He is the god of Ba Vì mountain range [2] and figures also in the romance of Sơn Tinh - Thủy Tinh ("the God of the Mountain and the God of the Water").
She swam for Vietnam at the 2016 Olympics. At the 2014 Asian Games, she won Vietnam's first-ever medal in swimming. [2] She has been named Vietnam's Athlete of the Year in both 2013 and 2014. [3] By the end of 2014, she holds the Vietnamese records in 14 of the 17 long-course individual events.
A pH indicator is a halochromic chemical compound added in small amounts to a solution so the pH (acidity or basicity) of the solution can be determined visually or spectroscopically by changes in absorption and/or emission properties. [1] Hence, a pH indicator is a chemical detector for hydronium ions (H 3 O +) or hydrogen ions (H +) in the ...
Từ điển bách khoa toàn thư Việt Nam (Encyclopedia of Vietnam), a state-sponsored encyclopedia which was published in 2005. Vietnamese Wikipedia, a project of the Wikimedia Foundation. Vietnam War encyclopedias. Encyclopedic works and encyclopedias focused on Vietnam War-related topics.
Viet Thanh Nguyen (Vietnamese: Nguyễn Thanh Việt; born March 13, 1971 [a]) is a South Vietnamese-born American professor and novelist. He is the Aerol Arnold Chair of English and Professor of English and American Studies and Ethnicity at the University of Southern California .
The Vietnamese Wikipedia initially went online in November 2002, with a front page and an article about the Internet Society.The project received little attention and did not begin to receive significant contributions until it was "restarted" in October 2003 [3] and the newer, Unicode-capable MediaWiki software was installed soon after.
The 13th Politburo of the Communist Party of Vietnam (CPV), formally the 13th Political Bureau of the Central Committee of the Communist Party of Vietnam (Vietnamese: Bộ Chính trị Ban Chấp hành trung ương Đảng Cộng sản Việt Nam Khoá XIII), was elected at the 1st Plenary Session of the 13th Central Committee (CC) in the immediate aftermath of the 13th National Congress.