WebSpherical Earth or Earth's curvature refers to the approximation of figure of the Earth as a sphere.The earliest documented mention of the concept dates from around the 5th century BC, when it appears in the writings of Greek philosophers. In the 3rd century BC, Hellenistic astronomy established the roughly spherical shape of Earth as a physical fact and …

WebAncient Chinese scientists and engineers made significant scientific innovations, findings and technological advances across various scientific disciplines including the natural sciences, engineering, medicine, military technology, mathematics, geology and astronomy.. Among the earliest inventions were the abacus, the sundial, and the Kongming lantern. …

WebHuangdi (Chinese: 皇帝; pinyin: Huángdì), translated into English as Emperor, was the superlative title held by monarchs of China who ruled various imperial regimes in Chinese history. In traditional Chinese political theory, the emperor was considered the Son of Heaven and the autocrat of all under Heaven.Under the Han dynasty, Confucianism …

WebThe Great Pacific garbage patch (also Pacific trash vortex and North Pacific Garbage Patch) is a garbage patch, a gyre of marine debris particles, in the central North Pacific Ocean. It is located roughly from 135°W to 155°W and 35°N to 42°N. The collection of plastic and floating trash originates from the Pacific Rim, including countries in Asia, North …

WebIn Chinese. Many Chinese varieties have homographs, called 多音字 (pinyin: duōyīnzì) or 重形字 (pinyin: chóngxíngzì), 破音字 (pinyin: pòyīnzì).. Old Chinese. Modern study of Old Chinese has found patterns that suggest a system of affixes. One pattern is the addition of the prefix /*ɦ/, which turns transitive verbs into intransitive or passives in some cases:

WebIn music theory, a scale is any set of musical notes ordered by fundamental frequency or pitch.A scale ordered by increasing pitch is an ascending scale, and a scale ordered by decreasing pitch is a descending scale. Often, especially in the context of the common practice period, most or all of the melody and harmony of a musical work is built using the …