A buffering agent can be either a weak acid or weak base. Buffering agents are usually added to water to form a buffer solution, which only slightly changes its pH in response to other acids and bases being combined with it, particularly a strong acid or a strong base.
D. B. Cooper is a media epithet popularly used to refer to an unidentified man who hijacked a Boeing 727 aircraft in the airspace between Portland, Oregon, and Seattle, Washington, on November 24, 1971. He extorted $200,000 in ransom and parachuted to an uncertain fate. Despite an extensive manhunt and protracted FBI investigation, the perpetrator has never been located or identified. The case remains the only unsolved air piracy in commercial aviation history. While available evidence and a pre
On this date in 1926, Chuck Cooper was born. He was an African American basketball player and later a city official. He was born in Pittsburgh, the son of Daniel and Emma Cooper. He played basketball and graduated from Westinghouse High School and attended West Virginia State before entering the Navy during World War II. After his service, the 6â5â Cooper attended Duquesne University and was one of the first Black All-Americans. On April 25, 1950 Cooper broke the color barrier in the National Basketball Association (NBA) when he was drafted by the Boston Celtics. According to his coach Red Auerbach, Cooper âhad to go through hellâ as the first Black in the sport.