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4 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 ...
- January 28, 1986; 37 years ago
3 天前 · Trinity was the code name of the first detonation of a nuclear weapon, conducted by the United States Army at 5:29 a.m. MWT (11:29:21 GMT) on July 16, 1945, as part of the Manhattan Project.The test was of an implosion-design plutonium bomb, nicknamed the "gadget", of the same design as the Fat Man bomb later detonated over Nagasaki, Japan, on August 9, 1945.
- July 16, 1945, (78 years ago)
- Trinity Site, New Mexico
1 天前 · v. t. e. The Oklahoma City bombing was a domestic terrorist truck bombing of the Alfred P. Murrah Federal Building in Oklahoma City, Oklahoma, United States, on April 19, 1995, the second anniversary of the end to the Waco siege. It also occurred on the same day as the execution of Arkansas white supremacist Richard Snell, who had "predicted" a ...
4 天前 · 1 Control-C has typically been used as a "break" or "interrupt" key. 2 Control-D has been used to signal "end of file" for text typed in at the terminal on Unix / Linux systems. Windows, DOS, and older minicomputers used Control-Z for this purpose. 3 Control-G is an artifact of the days when teletypes were in use.
2 天前 · Wembley Stadium (branded as Wembley Stadium connected by EE for sponsorship reasons) is an association football stadium in Wembley, London. It opened in 2007 on the site of the original Wembley Stadium, which had stood from 1923 until 2003. [8] [9] The stadium is England's national football stadium, and thus hosts the majority of the England ...
2 天前 · Michael Richard Pence (born June 7, 1959) is an American politician who served as the 48th vice president of the United States from 2017 to 2021 under President Donald Trump. A member of the Republican Party, he previously served as the 50th governor of Indiana from 2013 to 2017, and a member of the U.S. House of Representatives from 2001 to 2013.
1 天前 · A supernova ( pl.: supernovae or supernovas) is a powerful and luminous explosion of a star. A supernova occurs during the last evolutionary stages of a massive star, or when a white dwarf is triggered into runaway nuclear fusion. The original object, called the progenitor, either collapses to a neutron star or black hole, or is completely ...
