| Tunguska Explosion 30 July 1908 - 319 sec
At 7:17 AM on the morning of June 30, 1908, a mysterious explosion occurred in the skies over Siberia. It was caused by the impact and breakup of a large meteorite, at an altitude roughly six kilometers in the atmosphere. Realistic pictures of the event are unavailable. However, Russian scientists collected eyewitness accounts of the event. I believe that we now know enough about large impacts to "decode" the subjective descriptions of the witnesses and create realistic views of this historic asteroid impact as seen from different distances.
Auteur : besend
Tags:Tunguska explosion
 | | Tunguska Explosion, July 1908 - 641 sec
The Tunguska explosion (or Tunguska event), was a massive explosion that occurred near the Tunguska River in what is now Krasnoyarsk Krai of Russia, at 7:40 AM on June 30, 1908.
this extract contains film of a re-creation of the blast patterns, interviews with various scientists, and opens with possible scenario of it happening to New York City.
clips of interviews with Dr. Kevin Zahnle and Dr. David Morrison.
Подкаменная Тунгуска
Auteur : SirMixItAllUp
Tags:Tunguska explosion meteorite comet Подкаменная Тунгуска stony asteroid
| | Tunguska - 23 sec
Tunguska AA vehicle.
Auteur : olegbask
Tags:tunguska vehicle weapon Russia
| | Tunguska M1 - 64 sec
Video del tanque antiaereo ruso . y con mejor música
Auteur : omarvidalb
Tags:AA Anti-aircraft missile military radar tunguska russian tank tanques militar rusia defense
| | Alan Parsons - Return to Tunguska - 528 sec
Inspired by the fist track from Alan's last album "A Valid Path".
Auteur : cldbrks
Tags:alan parsons tunguska return to video music project
| | mysterious world tunguska explosion 1 of 3 - 561 sec
arthur c clarkes mysterious world the great siberian explosion about the mysterious impact that happened in russia 1908
Auteur : junmn77
Tags: mysterious world astronomy mysteries paranormal asteroid impact comet tunguska explosion ufo
| | A visit to the site of the Tunguska explosion - 97 sec
Read more: http://environment.newscientist.com/channel/earth/mg19826621.600?DCMP=youtube
New Scientist features editor David Cohen narrates his journey to the site of the Tunguska explosion in Siberia.
Auteur : newscientistvideo
Tags: tunguska explosion Siberia mystery lake Cheko Russia
| | O mistério de Tunguska - 340 sec
Tunguska é uma região da Sibéria onde em 1908 onde uma imensa onda de impacto devastou toda a região. Alguns afirmam que foi um meteorito que caiu na região. Este vídeo, que é parte de um documentário da History Channel, apresenta outra hipótese que pode ter sido um OVNI. Tire suas conclusões.
Auteur : Buzzpp
Tags: ufo ovni tunguska misterio russo russian alien
| | India's Multi-layered Air Defence -Tunguska- Part 3 (India has around 100 Tunguskas) - 139 sec
Indian army has got dozens of tunguskas,T90s!! A sample firing clip!!
Tunguska-M1 is a gun/missile system for low-level air defense. The system was designed by the KBP Instrument Design Bureau in Tula, Russia and is manufactured by the Ulyanovsk Mechanical Plant, Ulyanovsk, Russia. It can engage targets while stationary and on the move, using missiles for long-range targets and guns for close-in defense. It is designed for defense against both fixed-wing aircraft and helicopters and can also fire on ground targets.
The Tunguska-M1 vehicle carries eight 9M311-M1 surface-to-air missiles. Range is from 15 to 6,000 meters for ground targets and 15 to 10,000 meters for air targets. The system has target acquisition radar and target tracking radar, optical sight, a digital computing system, tilt angle measuring system and navigation equipment. Radar detection range is 18 kilometers and tracking range is 16 kilometers
Auteur : kashsoldier
Tags: India pakista china bangaladesh military air force IAF PAF delhi mumbai jammu kashmir bengal andhra karnataka orissa go
| | Tunguska meteorite - 67 sec
Tunguska meteorite didnt leave any crater it pulverized before reaching the soil burning flattening a land of 3100 square kilometers
Auteur : Veetina
Tags: Tunguska meteorite effect space impact
| | animation - Tunguska Siberia - 284 sec
My graduating film 2004 from Sheridan college
Auteur : Lambert06Pasquale06
Tags: animation cartoon explosion snow robot animal fox rabbit pasquale lamontagna
| | air defense ZSU-23 Shilka Tunguska - 354 sec
The Shilka ZSU-23-4 [ZSU = Zenitnaya Samokhodnaya Ustanovka - Anti-aircraft Self-Propelled Gun] is a Self-Propelled Anti-Aircraft Gun (SPAAG) featuring a prominent radar dish that can be folded down mounted on a modified PT-76 chassis. ZSU 23-4 Shilka, is capable of acquiring, tracking and engaging low-flying aircraft (as well as mobile ground targets while either in place or on the move). Employed in pairs 200 meters apart, 400 meters behind battalion leading elements, it is commonly used to surpress ATGM launch sites, such as TOW vehicles. The armament consists of four 23mm cannon with a maximum slant range of 3,000 meters. Ammunition is normally loaded with a ratio of three HE rounds to one AP round. Resupply vehicles carry an estimated additional 3,000 rounds for each of the four ZSUs in a typical battery. Recent (October 1997) information details ZSU-23-4 updates/modernization being offered by the Ukrainians that include: a new radar system replacing the GUN DISH radar, plus a sensor pod believed to include day/night camera, and a laser rangefinder; and mounted above radar/sensor pod is a layer of six fire-and-forget SAMs, believed to be Russian SA-18/GROUSE.
The ZSU-23-4 is a fully integrated, self-propelled antiaircraft system with four liquid-cooled 23-mm automatic cannons mounted on the front of a large, flat, armored turret. The chassis has many components borrowed from other Soviet armored vehicles, and the suspension system resembles that of the PT-76 and ASU 85 (six road wheels and no track support rollers). The driver sits in the left front of the hull, and the rest of the crew (commander, gunner, and radar operator) are located in the turret. The GUN DISH fire control radar mounted on the rear of the turret can be folded down during travel.
A number of different ZSU-23-4 models have been produced. These are primarily distinguishable externally by the types of stowage boxes on the turret and minor modifications in the mounting of the guns.
CAPABILITIES:
A platoon of four ZSU-23-4s is assigned, along with four SA-9/GASKIN SAM systems, to the antiaircraft battery of motorized rifle and tank regiments to cover the deadspace of the SA-6/GAINFUL in the division air defense umbrella. Two ZSU-23-4s usually will be in support of each of the two first-echelon battalions, each weapon normally separated by 200 meters, typically traveling 400 meters behind the battalion's leading elements.
The ZSU-23-4 is not amphibious, but has a fording capability of just over one meter. During river assault operations, the ZSU-23-4s would be ferried to the far bank immediately after the leading companies.
The ZSU-23-4 has the capability to both acquire and track low-flying aircraft targets, with an effective AA range of 2,500 meters. It also is capable of firing on the move because of its integrated radar/gun stabilization system. The high frequency operation of the GUN DISH radar emits a very narrow beam that provides for excellent aircraft tracking while being difficult to detect or evade. However, such a frequency also dictates a limited range, which can be compensated for by linking the system to other long-range acquisition radar in the area. The ZSU-23-4 also can be used against lightly armored ground vehicles.
The four guns are water cooled and have a cyclic rate of fire of 800 to 1,000 rounds per minute each. However, the guns are normally fired in bursts (2-3 rounds per barrel) to reduce ammunition expenditure and prolong barrel life. Each ZSU-23-4 carries about 2,000 rounds onboard. Supply trucks, which follow the ZSUs at a distance of 1.5 to 2.5 km, carry an estimated additional 3,000 rounds for each of the four ZSUs. Electronic target acquisition, tracking, and ranging are automated, and an onboard computer determines superelevation and azimuth lead. Conventional optical sights also are available. Two types of ammunition normally are mixed at a ratio of three Frag-HE-T rounds per one API-T round. An HEI-T round also may be fired.
TheZSU-23-4can be airlifted bytheAN-22 or II-76. The crew of the ZSU-23-4 is afforded a degree of protection by the thin armor (maximum thickness 9.4 mm in the hull, 8.9 in the turret). Collective NBC protection is provided by a radiation detection and warning system and an air filtration and overpressure system.
LIMITATIONS:
Heavy machine gun fire can penetrate the hull and turret. Tread and road wheels are vulnerable to artillery fire. HE fragmentation can penetrate the armor, destroy the radar dish, or rupture the liquid coolant sleeves of the 23-mm cannons. The system also is vulnerable to ECM.
Auteur : galbaldy
Tags:Russian Soviet army military airdefense ZSU-23 missile U2 Tunguska PVO AAA gun artillery
| | Tanques de Guerra - Tunguska M1 - 58 sec
Veículo de combate criado na Rússia que tem como missão principal a defesa contra alvos aéreos como helicópteros e aviões de combate.
Auteur : emmanuel1970
Tags:tanques militar tunguska
| | Tunguska-M1 - 69 sec
Short about Tunguska-M1 on MAKS-2007 airsalon
21-st august
Watch tonns of my pics from MAKS-2007 http://vitalykuzmin.net
Auteur : militaryvideo
Tags: maks maks-2007 sam tunguska airshow salon
| | Let's Play Secret Files Tunguska - 004 - Oleg - 655 sec
Oleg.
Auteur : dutchprocrastinator
Tags: let's play secret files tunguska video game grawl
| | Tunguska Techno - 46 sec
Video - Tunguska
Music - techno (Summer of love - Czech Rep. DJ Afrika Islam)
Auteur : RussiannaissuR
Tags:tunguska techno afrika islam russian military mobile AA anti aircraft
| | Apocalypse Then - Tunguska Explosion - 10 sec
June 30 marks the 100th anniversary of a huge mid-air explosion that flattened hundreds of square miles of forests in Siberia. Recent computer simulations show it might have been a smaller near-earth object than previously theorized -- and thus the kind that hits Earth more frequently. Learn more at nytimes.com/dotearth and sandia.gov (video courtesy of Sandia National Lab)
Auteur : anrevk
Tags: revkin science disasters aviation space environment catastrophe explosions Russia Siberia Dot Earth Sandia deep impact
| | mysterious world tunguska explosion 2 of 3 - 399 sec
arthur c clarkes mysterious qorld the great siberian explosion
Auteur : junmn77
Tags: mysterious world astronomy mysteries paranormal asteroid impact comet tunguska explosion ufo
| | mysterious world tunguska explosion 3 of 3 - 463 sec
arthur c clarkes mysterious world the great siberian explosion
Auteur : junmn77
Tags: mysterious world astronomy mysteries paranormal asteroid impact comet tunguska explosion ufo
| | Tunguska M1 A/A - 138 sec
http://www.aviationlive.org Online Aviation Pics,Videos and Forum
The 2K22M Tunguska-M (Russian 2К22 "Тунгуска" - Tunguska River) is a Russian tracked self-propelled anti-aircraft weapon armed with surface-to-air gun and missile system. It is designed to provide day and night protection for infantry and tank regiments against low-flying aircraft and helicopters in any weather condition. The complete system, consisting of the combat vehicle 2S6M, the 2F77M transloader truck, the test vehicle 9V921-M, the maintenance vehicles MTO-AGZ-M, 1R10-1M, 2F55-1M and 2V110-1, is referred to as 2K22M. The system uses the 9M311 Tunguska (SA-19) missile. The cost of the system is reported to be between 8 and 10 million USD.
Development of the system began in 1970, as a replacement for the ZSU-23-4, at the KBP Instrument Design Bureau in Tula, with work on the radar being conducted at the Ulyanovsk Mechanical Factory Ulyanovsk, Russia. By combining guns and missiles, the system is more effective than the ZSU-23-4, engaging targets at long-range with missiles, and shorter range targets with guns.
Studies were conducted that demonstrated that a 30 mm cannon would require 2-3 times fewer shells to destroy a given target than the 23 mm cannon of the ZSU-23-4, and that firing at a MiG-17 flying at 300 m/s, with an identical mass of 30 mm projectiles would result in a kill probability of 1.5 times greater than with 23 mm projectiles. An increase in the maximum engagement altitude from 2,000 to 4,000 m and increased effectiveness when engaging lightly armoured ground targets were also cited.
Development was slowed between 1975 and 1977 after the introduction of the SA-8 missile system, which seemed to fill the same requirement. After some considerable debate it was felt that a purely missile based system would not be as effective at dealing with very low flying attack helicopters attacking at short range with no warning. Since the reaction time of a gun system is around 8-10 seconds, compared to the reaction time of missile-based system, approximately 30 seconds, development was restarted.
The system testing was conducted between September 1980 and December 1981 on the Donguzskom range. It was officially accepted into service on 8 September 1982 and the initial version designated 2K22/2S6, with four missiles in the ready to fire position (two on each side) entered limited service in 1986. After a limited production run, a new version, designated 2K22M/2S6M, with eight missiles ready to fire (four on each side) entered service.
The system is based on the chassis of the GM-352M which is also used as the basis for the Buk-1M (NATO:SA-11 Gadfly) and Tor (NATO:SA-15). Overall the layout is similar to the German Gepard 35 mm anti-aircraft gun. A large central turret 2A40M contains three of the crew: the commander, gunner, and radar operator. The driver sits in the front left of the hull, with a gas turbine APU to his right. The engine is at the rear of the hull.
The chassis has six road wheels with hydropneumatic suspension on each side, with a drive sprocket at the rear and three return rollers. An NBC system is also integrated into the chassis.
A large E-band search radar is mounted on the rear top of the turret that combined with a turret front mounted J-band tracking radar forms the 1RL144M (NATO:Hot Shot) radar system. The system has a detection range of around 18 km, and can detect targets flying as low as 15 m. A C/D-band IFF system is also fitted designated 1RL138.
The system is able to fire on the move using cannons, although it must be stationary to fire missiles. The system has two modes of operation, radar and optical, in radar mode the target tracking is fully automatic, with the guns aimed using data from the radar. In optical mode the gunner tracks the target through an 8 x magnification (8 degree field of view) stabilized sight 1A29M, with the radar providing range data.
The dual 2A38M 30 mm cannons are built by the Tulamashzavod Joint Stock Company and are fired alternately. They have a combined rate of fire of between 4,000 and 5,000 rounds per minute, and have a muzzle velocity of 960 m/s. Bursts of between 83 and 250 rounds are fired as determined by the target type. HE-T and HE-I shells are used fitted with a A-670 time and impact fuze.
The system uses the same 9M311 (NATO: SA-19/SA-N-11) missile family as the naval CIWS Kashtan, which are fired in the optical mode, the tracking radar being used to send steering commands to the missiles.
The system is reported to have a kill probability of 0.8 with cannons and 0.87 with missiles.
Auteur : Freeaviation
Tags: tunguska
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