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4 天前 · It was based in the Pingfang district of Harbin, the largest city in the Japanese puppet state of Manchukuo (now Northeast China) and had active branch offices throughout China and Southeast Asia . Established in 1936, Unit 731 was responsible for some of the most notorious war crimes committed by the Japanese armed forces.
- 1936–1945
- Biological weapons, Chemical weapons, Explosives
- Estimated 3,000 to 300,000, 400,000 or higher from biological warfare, Over 3,000 from inside experiments from each unit (not including branches, 1940–1945 only): 20 , At least 10,000 prisoners died, No documented survivors
2 天前 · The Köppen climate classification is one of the most widely used climate classification systems. It was first published by German-Russian climatologist Wladimir Köppen (1846–1940) in 1884, [2] [3] with several later modifications by Köppen, notably in 1918 and 1936.
6 天前 · In probability theory and statistics, a normal distribution or Gaussian distribution is a type of continuous probability distribution for a real-valued random variable.The general form of its probability density function is = ()The parameter is the mean or expectation of the distribution (and also its median and mode), while the parameter is its standard deviation.
1 天前 · Website. sdgs .un .org. The 2030 Agenda for Sustainable Development, adopted by all United Nations members in 2015, created 17 world Sustainable Development Goals ( SDGs ). They were created with the aim of " peace and prosperity for people and the planet..." [1] [2] [3] – while tackling climate change and working to preserve oceans and forests.
4 天前 · The M1 Abrams ( / ˈeɪbrəmz /) [10] is a third-generation American main battle tank designed by Chrysler Defense (now General Dynamics Land Systems) and named for General Creighton Abrams. Conceived for modern armored ground warfare and now one of the heaviest tanks in service at nearly 73.6 short tons (66.8 metric tons ).
1 天前 · Pyotr Ilyich Tchaikovsky. Pyotr Ilyich Tchaikovsky [n 1] ( / tʃaɪˈkɒfski / chy-KOF-skee; [2] 7 May 1840 – 6 November 1893) [n 2] was a Russian composer during the Romantic period. He was the first Russian composer whose music would make a lasting impression internationally. Tchaikovsky wrote some of the most popular concert and theatrical ...
1 天前 · Russia, [b] or the Russian Federation, [c] is a country spanning Eastern Europe and North Asia. It is the largest country in the world by area, extending across eleven time zones and sharing land borders with fourteen countries. [d] It is the world's ninth-most populous country and Europe's most populous country.
