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UNICEF (/ˈjuːniˌsɛf/ YOO-nee-SEF), originally called the United Nations International Children's Emergency Fund in full, now officially United Nations Children's Fund,[a] is an agency of the United Nations responsible for providing humanitarian and developmental aid to children worldwide.[3][4] The organization is one of the most widely ...
Taiwan,[II][k] officially the Republic of China (ROC),[I][l] is a country[27] in East Asia.[o] It is located at the junction of the East and South China Seas in the northwestern Pacific Ocean, with the People's Republic of China (PRC) to the northwest, Japan to the northeast, and the Philippines to the south. The territories controlled by the ...
The United Nations Educational, Scientific and Cultural Organization (UNESCO) is a specialized agency of the United Nations (UN) with the aim of promoting world peace and security through international cooperation in education, arts, sciences and culture. It has 194 member states and 12 associate members, as well as partners in the non-governmental, intergovernmental and private sector.
Baidu, Inc. (/ ˈ b aɪ d uː / BY-doo; Chinese: 百度; pinyin: Bǎidù; lit. 'hundred degrees') is a Chinese multinational technology company specializing in Internet-related services, headquartered in Beijing's Haidian District. It holds a dominant position in China's search engine market, and provides a wide variety of other internet services such as Baidu Baike (an online encyclopedia ...
The earliest datable record of an aurora was recorded in the Bamboo Annals, a historical chronicle of the history of ancient China, in 977 or 957 BC. An aurora was described by the Greek explorer Pytheas in the 4th century BC. Seneca wrote about auroras in the first book of his Naturales Quaestiones, classifying them, for instance, as pithaei ('barrel-like'); chasmata ('chasm'); pogoniae ...
Elon Reeve Musk (/ ˈ iː l ɒ n / EE-lon; born June 28, 1971) is a businessman and investor.He is the founder, chairman, CEO, and CTO of SpaceX; angel investor, CEO, product architect, and former chairman of Tesla, Inc.; owner, executive chairman, and CTO of X Corp.; founder of The Boring Company and xAI; co-founder of Neuralink and OpenAI; and president of the Musk Foundation.
Viète. de Moivre. Euler. Fourier. v. t. e. In trigonometry, trigonometric identities are equalities that involve trigonometric functions and are true for every value of the occurring variables for which both sides of the equality are defined. Geometrically, these are identities involving certain functions of one or more angles.
