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2 天前 · Unit 731 (Japanese: 731部隊, Hepburn: Nana-san-ichi Butai), short for Manchu Detachment 731 and also known as the Kamo Detachment: 198 and the Ishii Unit, was a covert biological and chemical warfare research and development unit of the Imperial Japanese Army that engaged in lethal human experimentation and biological weapons manufacturing during the Second Sino-Japanese War (1937–1945 ...
2 天前 · Tupac Amaru Shakur (/ˈtuːpɑːk ʃəˈkʊər/ TOO-pahk shə-KOOR; born Lesane Parish Crooks; June 16, 1971 – September 13, 1996), also known by his stage names 2Pac and Makaveli, was an American rapper and songwriter. He is considered to be one of the most influential and successful rappers and African-American music artists of all time.[1 ...
3 天前 · Phosphorus is a chemical element; it has symbol P and atomic number 15. Elemental phosphorus exists in two major forms, white phosphorus and red phosphorus, but because it is highly reactive, phosphorus is never found as a free element on Earth. It has a concentration in the Earth's crust of about one gram per kilogram (compare copper at about ...
4 天前 · Diabetes mellitus, often known simply as diabetes, is a group of common endocrine diseases characterized by sustained high blood sugar levels. [10] [11] Diabetes is due to either the pancreas not producing enough insulin, or the cells of the body becoming unresponsive to the hormone's effects. [12] Classic symptoms include thirst, polyuria ...
5 天前 · Stainless steel, also known as inox, corrosion-resistant steel ( CRES) and rustless steel, is an alloy of iron that is resistant to rusting and corrosion. It contains iron with chromium and other elements such as molybdenum, carbon, nickel and nitrogen depending on its specific use and cost. Stainless steel's resistance to corrosion results ...
1 天前 · Unemployed people lined up outside a soup kitchen in Chicago. The Great Depression (1929–1939) was a severe global economic downturn that affected many countries across the world. It became evident after a sharp decline in stock prices in the United States, leading to a period of economic depression. [1] The economic contagion began around ...
2 天前 · Etymology and definitions The word psychology derives from the Greek word psyche, for spirit or soul.The latter part of the word psychology derives from -λογία -logia, which means "study" or "research". The word psychology was first used in the Renaissance. In its Latin form psychiologia, it was first employed by the Croatian humanist and Latinist Marko Marulić in his book Psichiologia ...
