The Arena Active Protection System is an active countermeasure system
developed at Russia's Kolomna-based Engineering Design Bureau for the
purpose of protecting armored fighting vehicles from destruction by
light anti-tank weapons, anti-tank guided missiles, and missiles with
top attack warheads. It uses a Doppler radar to detect incoming
warheads. Upon detection, a defensive rocket is fired that detonates
near the inbound threat, destroying it before it hits the vehicle.
Arena is the successor to Drozd, a Soviet active protection system from
the late 1970s. The successful use by the Chechnyans of the rocket
propelled grenade against the Russian fighting vehicles prompted the
Kolomenskoye machine-building design bureau to devise the Arena active
protection system in the early and mid-1990s. An export variant,
Arena-E, was also developed. The system has been tested on the
T-80UM-1, demonstrated at Omsk in 1997, and was considered for use on
the South Korean K2 Black Panther main battle tank.
Read the rest of this article:
<http://en.wikipedia.org/wiki/Arena_Active_Protection_System>
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Today's selected anniversaries:
48 BC:
Julius Caesar and the Populares defeated Pompey and the Optimates at
the Battle of Pharsalus, solidifying his control over the Roman
Republic.
<http://en.wikipedia.org/wiki/Battle_of_Pharsalus>
1173:
The construction of a campanile, which would eventually become the
Leaning Tower of Pisa, began.
<http://en.wikipedia.org/wiki/Leaning_Tower_of_Pisa>
1942:
British Raj authorities arrested Mahatma Gandhi and various leaders of
the Congress Party, beginning the suppression of the Quit India
Movement.
<http://en.wikipedia.org/wiki/Quit_India_Movement>
1945:
World War II: USAAF bomber Bockscar dropped an atomic bomb named "Fat
Man", devastating Nagasaki, Japan.
<http://en.wikipedia.org/wiki/Fat_Man>
1969:
Followers of cult leader Charles Manson brutally murdered pregnant
actress Sharon Tate and four others in her Benedict Canyon, Los
Angeles home.
<http://en.wikipedia.org/wiki/Sharon_Tate>
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Wiktionary's word of the day:
ribald (adj):
Coarse; lewd; vulgar
<http://en.wiktionary.org/wiki/ribald>
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Wikiquote quote of the day:
The principal goal of education in the schools should be creating men
and women who are capable of doing new things, not simply repeating
what other generations have done; men and women who are creative,
inventive and discoverers, who can be critical and verify, and not
accept, everything they are offered.
--Jean Piaget
<http://en.wikiquote.org/wiki/Jean_Piaget>