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1 天前 · 1987–2000. Number built. 21 [1] [2] The Northrop Grumman B-2 Spirit, also known as the Stealth Bomber, is an American heavy strategic bomber, featuring low-observable stealth technology designed to penetrate dense anti-aircraft defenses. A subsonic flying wing with a crew of two, the plane was designed by Northrop (later Northrop Grumman) and ...
- 17 July 1989; 34 years ago
- 1987–2000
- 21
2 天前 · Aero L-59 Super Albatros Aero L-159 Alca. The Aero L-39 Albatros is a high-performance jet trainer designed and produced by Aero Vodochody in the Czech Republic. In addition to performing basic and advanced pilot training, it has also flown combat missions in a light-attack role. Unusually, the aircraft never received a NATO reporting name .
- 4 November 1968
- Aero Vodochody
- 2,900
- Aero L-39NG
1 天前 · The Alhambra (/ æ l ˈ h æ m b r ə /, Spanish:; Arabic: ال ح م ر اء, romanized: al-ḥamrāʼ ) is a palace and fortress complex located in Granada, Andalusia, Spain.It is one of the most famous monuments of Islamic architecture and one of the best-preserved palaces of the historic Islamic world, in addition to containing notable examples of Spanish Renaissance architecture.
4 天前 · Sean Justin Penn (born August 17, 1960) [1] [2] is an American actor and film director. He has won Academy Awards for his roles in the mystery drama Mystic River (2003) and the biopic Milk (2008). Penn began his acting career in television, with a brief appearance in episode 112 of Little House on the Prairie on December 4, 1974, directed by ...
1 天前 · Geologic time scale. The geologic time scale, proportionally represented as a log-spiral with some major events in Earth's history. A megaannus (Ma) represents one million (10 6) years. The geologic time scale or geological time scale ( GTS) is a representation of time based on the rock record of Earth. It is a system of chronological dating ...
1 天前 · 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.The bombing was the deadliest act of terrorism in U.S. history before the September 11 attacks in 2001, and it remains the deadliest act of domestic terrorism in U.S. history.
18 小時前 · The Köppen climate classification is one of the most widely used climate classification systems. It was first published by German-Russian climatologist Wladimir Köppen (1846–1940) in 1884, [1] [2] with several later modifications by Köppen, notably in 1918 and 1936. [3] [4] Later, German climatologist Rudolf Geiger (1894–1981) introduced ...
