A Wisdom Archive on Explosions

21 July 2005 London bombings - Explosions on the Underground. 12:26 BST – An explosion occurred on a train at Shepherd's Bush tube station on the Hammersmith and City Line in West London. 12:30 BST – An explosion occurred on a train at Oval tube station on the Northern Line. 12:45 BST – An explosion occurred on a Victoria Line train at Warren Street tube station (through which the Northern Line also runs). The explosions were small – only about as powerfu ...

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The cause of the blasts was initially determined two days after the blast: the accident site is a nitration unit for aniline equipment. T-102 tower jammed up but was not handled properly, hence the blasts [1]. The blasts were so powerful that they shattered windows at least 100 to 200 meters away from the scene of the explosions. At least 70 people have been injured, five have perished, and one person is still missing. [2] The fires were f ...

Read more here: » 2005 Jilin chemical plant explosions: Encyclopedia II - 2005 Jilin chemical plant explosions - Explosions

In steam locomotive boilers, due to the type of construcion and the working conditions in early days, the explosive situations and consequent damage due to explosions were unavoidable. By the time the improvements were engineered on these boilers and prime movers, other methods of prime movers for locomotives had come into practice, such as diesel engines, which proved to be much safer, convenient, and economical. On land-based boilers, explosions of the pressure systems are very rare because of the various protections provided, and a ...

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An explosion is a sudden increase in volume and release of energy in a violent manner, usually with the generation of high temperatures and the release of gases. An explosion causes pressure waves in the local medium in which it occurs. Explosions are categorized as deflagrations if these waves are subsonic and detonations if they are supersonic (shock waves). Most common artificial explosives are chemical explosives, usually involving a rapid and violent oxidation reaction that produces large amounts of hot gas. Gunpowder was ... Including:

• Explosion - Famous explosions

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The Nanaimo mine explosion on May 3, 1887, in Nanaimo, British Columbia killed 150 miners and was the largest man-made explosion in the world until the Halifax Explosion. Only seven miners survived and the mine burned for one full day. The explosion started deep underground in the Number One Coal Mine, after explosives were laid improperly. Although many miners died instantly, others were trapped by the explosion. These men wrote farewell messages in the dust of their shovels. More than 150 children lost their fathers and 46 women became widows ...

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On December 6, 1917, at 8:45 a.m. local time, the French ammunition ship Mont-Blanc and the Norwegian Relief ship Imo collided in the narrows of Halifax Harbour. The Mont-Blanc was waiting to be let into the harbour on December 5, but it arrived late. Halifax harbour had submarine nets that stopped enemy U-boats from entering. This also stopped other ships from entering. At the same time, the Imo wanted to get out of the harbour, and it too was late. On December 6, the Imo was going to go out in the right c ...

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Several small earthquakes beginning as early as March 16, 1980, indicated that magma may have been moving below the volcano. Then on March 20 at 3:47 PM Pacific Standard Time (all times will be in PST), a shallow Richter magnitude 4.2 earthquake, centered below the mountain's north flank, definitely signaled the volcano's violent return from 123 years of hibernation. A gradually building earthquake swarm saturated area seismographs and started to climax at about noon on March 25, reaching peak levels in the next two days (a to ...

Read more here: » 1980 eruption of Mount St. Helens: Encyclopedia II - 1980 eruption of Mount St. Helens - Buildup to disaster

Category:Man-made disasters - Subcategories. Category:Man-made disasters - D. Dam disasters Category:Man-made disasters - E. Explosions Category:Man-made disasters - I. Industrial disasters Category:Man-made disasters - N. Non-combat accidents involving militaryNuclear accidents Category:Man-made disasters - S. Software engineering d ...

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Jason members all have security clearances and consist of physicists, biologists, chemists, oceanographers, mathematicians, and computer scientists. They are selected for their scientific brilliance, and over the years, have included eleven Nobel Prize laureates and several dozen members of the National Academy of Science. The following is a list of members, past and present, who have been publicly identified as Jasons or whose names appear as authors on Jason studies. Since not all study authors are members of Jason, and since Jason ...

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1980 eruption of Mount St. Helens - Initial lateral blast. The landslide suddenly exposed the dacite magma in St. Helens' neck to much lower pressure, causing the gas-charged, partially molten rock and high-pressure steam above it to explode a few seconds after the slide started. Explosions burst through the trailing part of the landslide, blasting rock debris northward. The resulting laterally directed pyroclastic flow of super-heated volcanic gases, ash and pumice from new lava, and pulverized old rock hugged t ...

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At 7 AM on May 18, USGS volcanologist David A. Johnston, who had Saturday night duty at an observation post about 6 miles (10 km) north of the mountain, radioed in the results of some laser-beam measurements he had made moments earlier. Mount St. Helens' activity that day did not show any change from the pattern of the preceding month. The rate of bulge movement, sulfur-dioxide gas emission, and ground temperature readings did ...

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On the following day, a blizzard hit the city, hindering recovery efforts. Immediate help rushed in from around New Brunswick, Prince Edward Island and Newfoundland. In the following week, more relief from North America arrived, and donations were sent from around the world. The most celebrated and most complete effort came from the Boston Red Cross and the Massachusetts Public Safety Committee. To this day, the citizens of Halifax still donate a large Christmas tree to Boston each year. The friendship also explains why even today many Nova Scot ...

Read more here: » Halifax Explosion: Encyclopedia II - Halifax Explosion - Aftermath