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2 天前 · Jurassic Park is a 1993 American science fiction action film directed by Steven Spielberg, produced by Kathleen Kennedy and Gerald R. Molen, and starring Sam Neill, Laura Dern, Jeff Goldblum, and Richard Attenborough.It is the first installment in the Jurassic Park franchise, and the first film in the original Jurassic Park trilogy, and is based on Michael Crichton's 1990 novel of the same ...
6 天前 · Plate tectonics (from Latin tectonicus, from Ancient Greek τεκτονικός (tektonikós) 'pertaining to building')[1] is the scientific theory that Earth's lithosphere comprises a number of large tectonic plates, which have been slowly moving since about 3.4 billion years ago.[2] The model builds on the concept of continental drift, an ...
4 天前 · Background Titanic on sea trials, 2 April 1912 At the time of her entry into service on 2 April 1912, the Titanic was the second of three Olympic-class ocean liners, and was the largest ship in the world.She and the earlier RMS Olympic were almost one and a half times the gross register tonnage of Cunard's RMS Lusitania and RMS Mauretania, the previous record holders, and were nearly 100 feet ...
2 天前 · Nepal, officially the Federal Democratic Republic of Nepal, is a landlocked country in South Asia.It is mainly situated in the Himalayas, but also includes parts of the Indo-Gangetic Plain.It borders the Tibet Autonomous Region of China to the north, and India to the south, east, and west, while it is narrowly separated from Bangladesh by the Siliguri Corridor, and from Bhutan by the Indian ...
1 天前 · Genghis Khan (born Temüjin; c. 1162 – 25 August 1227), also known as Chinggis Khan,[a] was the founder and first khan of the Mongol Empire, which he ruled from 1206 until his death in 1227; it later became the largest contiguous empire in history. After spending most of his life uniting the Mongol tribes, he launched a series of military ...
2 天前 · It is the smallest planet in the Solar System, with an equatorial radius of 2,439.7 kilometres (1,516.0 mi). [4] Mercury is also smaller —albeit more massive—than the largest natural satellites in the Solar System, Ganymede and Titan. Mercury consists of approximately 70% metallic and 30% silicate material.
5 天前 · On January 28, 1986, the Space Shuttle Challenger broke apart 73 seconds into its flight, killing all seven crew members aboard. The spacecraft disintegrated 46,000 feet (14 km) above the Atlantic Ocean, off the coast of Cape Canaveral, Florida, at 11:39 a.m. EST (16:39 UTC ). It was the first fatal accident involving an American spacecraft ...
