搜尋結果
The number π (/paɪ/; spelled out as "pi") is a mathematical constant that is the ratio of a circle's circumference to its diameter, approximately equal to 3.14159. The number π appears in many formulae across mathematics and physics. It is an irrational number, meaning that it cannot be expressed exactly as a ratio of two integers, although ...
Tibet (/tɪˈbɛt/ ⓘ; Tibetan: བོད, Lhasa dialect: [pʰøːʔ˨˧˩] Böd; Chinese: 西藏; pinyin: Xīzàng), or Greater Tibet, is a region in the central part of East Asia, covering much of the Tibetan Plateau and spanning about 2,500,000 km2 (970,000 sq mi). It is the homeland of the Tibetan people. Also resident on the plateau are ...
Berbers (Arabic: بربر) or the Berber peoples, also called by their endonym Amazigh (/ æ m ə ˈ z ɪ ɡ /) or Imazighen (Berber languages: , , romanized: Imaziɣen; singular: Amaziɣ, , ; Arabic: أمازيغ), are a diverse grouping of distinct ethnic groups indigenous to North Africa who predate the arrival of Arabs in the Arab migrations to the Maghreb.
The International Space Station (ISS) is a large space station assembled and maintained in low Earth orbit by a collaboration of five space agencies and their contractors: NASA (United States), Roscosmos (Russia), JAXA (Japan), ESA (Europe), and CSA (Canada). The ISS is the largest space station ever built. Its primary purpose is to perform ...
The Philippines is generally mountainous; uplands make up 65 percent of the country's total land area. [53]: 38 [201] The Philippines is an archipelagoof about 7,641 islands,[202][203]covering a total area (including inland bodies of water) of about 300,000 square kilometers (115,831 sq mi).
Neanderthals ( / niˈændərˌtɑːl, neɪ -, - ˌθɑːl / nee-AN-də (r)-TAHL, nay-, -THAHL; [7] Homo neanderthalensis or H. sapiens neanderthalensis) are an extinct group of archaic humans (generally regarded as a distinct species, though some regard it as a subspecies of Homo sapiens) who lived in Eurasia until about 40,000 years ago.
The Nanjing Massacre [2] or the Rape of Nanjing (formerly romanized as Nanking [note 2]) was the mass murder of Chinese civilians in Nanjing, the capital of the Republic of China, immediately after the Battle of Nanking and the retreat of the National Revolutionary Army in the Second Sino-Japanese War, by the Imperial Japanese Army.
