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Quizlet made its first acquisition in March 2021, with the purchase of Slader, which offered detailed explanations of textbook concepts and practice problems, and eventually incorporated it into its paid platform, Quizlet Plus. [20] [21] [22] In November 2022, Quizlet announced a new CEO, Lex Bayer, the former CEO of Starship Technologies. [23]
In 1966, La Touche told Hare that he had given Fleming thirteen specimens of fungi (ten from his lab) and only one from his lab was showing penicillin-like antibacterial activity. [23] After this, a consensus developed that Fleming's mould had come from La Touche's lab, a floor below Fleming's, as spores which had drifted in through the open doors.
Project Gemini (IPA: / ˈ dʒ ɛ m ɪ n i /) was the second United States human spaceflight program to fly. Conducted after the first American crewed space program, Project Mercury, while the Apollo program was still in early development, Gemini was conceived in 1961 and concluded in 1966.
Periscope [a] is an electro-mechanical arcade shooting submarine simulator.Two companies developed similar games with the name. The first, initially called Torpedo Launcher, was designed by Nakamura Manufacturing Co. (becoming Namco in 1977) and released in Japan in 1965, as the first arcade game Masaya Nakamura built.
July 7 – George de Hevesy (born 1885), Hungarian winner of the Nobel Prize in Chemistry. August 10 – Felix Andries Vening Meinesz (born 1887), Dutch geophysicist. October 1 – Mary Logan Reddick (born 1914), African American neuroembryologist. October 3 – Rolf Maximilian Sievert (born 1896), Swedish physicist.
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The Lower Paleolithic period lasted over 3 million years, during which there many human-like species evolved including toward the end of this period, Homo sapiens.The original divergence between humans and chimpanzees occurred 13 (), however interbreeding continued until as recently as 4 Ma, with the first species clearly belonging to the human (and not chimpanzee) lineage being ...
McLean was born in Maxton, North Carolina in 1913. [2] His first name was originally spelled Malcolm, though he used Malcom later in life. [3]In 1935, when he finished high school at Winston-Salem, his family did not have enough money to send him to college, but there was enough for McLean to buy a used truck.