A nuclear explosion is an explosion that occurs as a result of the rapid release of energy from a high-speed nuclear reaction. The driving reaction may be nuclear fission, nuclear fusion or a multistage cascading combination of the two, though to date all fusion-based weapons have used a fission device to initiate fusion, and a pure fusion weapon remains a hypothetical device.
There is increased use of nuclear energy after the Second World War which results in increase in artificial radioactivity on our planet. The objective of this article is to show the estimated amount of artificial radioactivity on earth surface and its effect by comparing it with the radioactive decay which took place in Hiroshima bombing by ‘little boy’. There is estimated amount of 100 trillion curie of radioactivity on earth surface for human use. This man made radioactivity on earth surface has capacity to change temperature of the earth by 0.97oC if heat is evenly distributed and unfortunately Hiroshima bombing did not stop but continued at rate of 39 ‘little boy’ bombing of the earth per second. Every second 39 atomic bombs of ‘little boy’ size are dropped. One can see the large amount of bombing taking place on the earth by artificial radioactivity and the bombing should be stopped and further analysis of artificial radioactivity should also be done
This is Chapter 1 in a newly published textbook entitled "Case Studies in Public Health Preparedness and Response to Disasters" -- "The Great East Japan Earthquake of March 11, 2011. This chapter describes what is probably the best example historically of what has come to be known as a "cascading crisis": earthquake, tsunami, with secondary nuclear reactor damage. http://www.jblearning.com/catalog/9781449645199/
A nuclear explosion is an explosion that occurs as a result of the rapid release of energy from a high-speed nuclear reaction. The driving reaction may be nuclear fission, nuclear fusion or a multistage cascading combination of the two, though to date all fusion-based weapons have used a fission device to initiate fusion, and a pure fusion weapon remains a hypothetical device.
There is increased use of nuclear energy after the Second World War which results in increase in artificial radioactivity on our planet. The objective of this article is to show the estimated amount of artificial radioactivity on earth surface and its effect by comparing it with the radioactive decay which took place in Hiroshima bombing by ‘little boy’. There is estimated amount of 100 trillion curie of radioactivity on earth surface for human use. This man made radioactivity on earth surface has capacity to change temperature of the earth by 0.97oC if heat is evenly distributed and unfortunately Hiroshima bombing did not stop but continued at rate of 39 ‘little boy’ bombing of the earth per second. Every second 39 atomic bombs of ‘little boy’ size are dropped. One can see the large amount of bombing taking place on the earth by artificial radioactivity and the bombing should be stopped and further analysis of artificial radioactivity should also be done
This is Chapter 1 in a newly published textbook entitled "Case Studies in Public Health Preparedness and Response to Disasters" -- "The Great East Japan Earthquake of March 11, 2011. This chapter describes what is probably the best example historically of what has come to be known as a "cascading crisis": earthquake, tsunami, with secondary nuclear reactor damage. http://www.jblearning.com/catalog/9781449645199/
Nuclear accidents have been one of the major concerns after the introduction of nuclear energy.
Here its arise the topic of nuclear accidents and holocaust
The Fukushima Daiichi nuclear disaster was a series of equipment failures, nuclear meltdowns, and releases of radioactive materials at the Fukushima I Nuclear Power Plant, following the Tōhoku earthquake and tsunami on 11 March 2011
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role of women and girls in various terror groupssadiakorobi2
Women have three distinct types of involvement: direct involvement in terrorist acts; enabling of others to commit such acts; and facilitating the disengagement of others from violent or extremist groups.
In a May 9, 2024 paper, Juri Opitz from the University of Zurich, along with Shira Wein and Nathan Schneider form Georgetown University, discussed the importance of linguistic expertise in natural language processing (NLP) in an era dominated by large language models (LLMs).
The authors explained that while machine translation (MT) previously relied heavily on linguists, the landscape has shifted. “Linguistics is no longer front and center in the way we build NLP systems,” they said. With the emergence of LLMs, which can generate fluent text without the need for specialized modules to handle grammar or semantic coherence, the need for linguistic expertise in NLP is being questioned.
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‘वोटर्स विल मस्ट प्रीवेल’ (मतदाताओं को जीतना होगा) अभियान द्वारा जारी हेल्पलाइन नंबर, 4 जून को सुबह 7 बजे से दोपहर 12 बजे तक मतगणना प्रक्रिया में कहीं भी किसी भी तरह के उल्लंघन की रिपोर्ट करने के लिए खुला रहेगा।
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हम आग्रह करते हैं कि जो भी सत्ता में आए, वह संविधान का पालन करे, उसकी रक्षा करे और उसे बनाए रखे।" प्रस्ताव में कुल तीन प्रमुख हस्तक्षेप और उनके तंत्र भी प्रस्तुत किए गए। पहला हस्तक्षेप स्वतंत्र मीडिया को प्रोत्साहित करके, वास्तविकता पर आधारित काउंटर नैरेटिव का निर्माण करके और सत्तारूढ़ सरकार द्वारा नियोजित मनोवैज्ञानिक हेरफेर की रणनीति का मुकाबला करके लोगों द्वारा निर्धारित कथा को बनाए रखना और उस पर कार्यकरना था।
2. Japan Population: 126,475,664 Slightly smaller than California 10th largest population in the world 98.5% are ethnic Japanese
3. Japanese Earthquakes Why was Japan's March 11 earthquake so big? One answer is the large size of the fault rupture as well as the speed at which the Pacific Plate is continuously thrusting beneath Japan
4. Japanese Earthquakes Magnitude, according to USGS: 9.0 Speed at which the Pacific Plate is smashing into the Japanese island arc: 8.9 centimeters (3.5 inches) per year Speed at which the San Andreas Fault in California is slipping: about 4 centimeters per year
5. Japanese Earthquakes Top speed of a tsunami over the open ocean: About 800 kilometers per hour Normal cruising speed of a jetliner: 800 kilometers per hour Length of warning time Sendai residents had before tsunami hit: eight to 10 minutes
6. Japanese Earthquakes Number of confirmed aftershocks: 401 Worldwide average annual number of earthquakes over magnitude 6.0: 150 Years since an earthquake of this magnitude has hit the plate boundary of Japan: 1,200
9. Tsunami Japanese for “harbor wave” A series of water waves caused by the displacement of a large volume of a body of water, usually an ocean Tsunamis are a frequent occurrence in Japan; approximately 195 events have been recorded.
10. 2004 Tsunami The 2004 Indian Ocean earthquake was an undersea megathrust earthquake that occurred on Sunday, December 26, 2004, with an epicentre off the west coast of Sumatra, Indonesia.
12. 2004 Tsunami The earthquake that generated the great Indian Ocean tsunami of 2004 is estimated to have released the energy of 23,000 Hiroshima-type atomic bombs
13. 2004 Tsunami By the end of the day more than 150,000 people were dead or missing and millions more were homeless in 11 countries, making it perhaps the most destructive tsunami in history.
14. 2004 Tsunami The earthquake was the result of the sliding of the portion of the Earth's crust known as the India plate under the section called the Burma plate. The process has been going on for millennia, one plate pushing against the other until something has to give. The result on December 26 was a rupture the USGS estimates was more than 600 miles
15. 2004 Tsunami The Indian Ocean tsunami traveled as much as 3,000 miles (nearly 5,000 kilometers) to Africa, arriving with sufficient force to kill people and destroy property. The Indian Ocean tsunami caused waves as high as 50 feet (15 meters) in some places, according to news reports
16. 2004 Tsunami Within hours killer waves radiating from the earthquake zone slammed into the coastline of 11 Indian Ocean countries, snatching people out to sea, drowning others in their homes or on beaches, and demolishing property from Africa to Thailand.
19. Daiichi Nuclear Reactor Daiichi Nuclear Power Station station has 6 nuclear reactors on site that are all of the type known as Boiling Water Reactors. They are an older design that does not have a containment building but rather a containment vessel which holds the reactor core of rods and water that is used to generate steam. They were all built in the 1970’s.
22. Daiichi Nuclear Reactor The problem at Daiichi Unit 1 is that the pumps that circulate the water have shut down initially due to a lack of power. Since the reactor is a “single loop” there the water around the core has continued to heat up. Even with the control rods in, the reactor stays very hot for at least a couple of days.
23. Nuclear Power Nuclear power plants harness the thermal energy released from nuclear fission (neutron splitting) Fission splits the atom into two or more smaller nuclei with kinetic energy (known as fission products) and also releases gamma radiation and free neutrons. This nuclear chain reaction can be controlled by using neutron poisons and neutron moderators to change the portion of neutrons that will go on to cause more fissions.
25. Nuclear Power A cooling system removes heat from the reactor core and transports it to another area of the plant, where the thermal energy can be harnessed to produce electricity or to do other useful work. Typically the hot coolant will be used as a heat source for a boiler, and the pressurized steam from that boiler will power one or more steam turbine driven electrical generators.
28. Nuclear Power The fuel rods will spend about 3 operational cycles (typically 6 years total now) inside the reactor, generally until about 3% of their uranium has been fissioned, then they will be moved to a spent fuel pool where the short lived isotopes generated by fission can decay away.
29. Nuclear Power After about 5 years in a spent fuel pool the spent fuel is radioactively and thermally cool enough to handle, and it can be moved to dry storage casks or reprocessed.
32. Daiichi Nuclear Reactor The plant’s operator, Tokyo Electric Power, repeated efforts to inject seawater into the reactor failed, causing water levels inside the reactor’s containment vessel to fall and exposing its fuel rods. After what at first appeared to be a successful bid to refill the vessel, water levels again dwindled, this time to critical levels, exposing the rods almost completely.
33. Were they prepared? Tokyo Electric Power Co.'s disaster plans greatly underestimated the scope of a potential accident at its Fukushima Daiichi nuclear plant, calling for only one stretcher, one satellite phone and 50 protective suits in case of emergencies.
34. Were they prepared? Disaster-response documents for Fukushima Daiichi, examined by The Wall Street Journal, also contain few guidelines for obtaining outside help, providing insight into why Japan struggled to cope with a nuclear crisis after an earthquake and tsunami devastated the facility.
35. Were they prepared? The disaster plans, approved by Japanese regulators, offer guidelines for responding to smaller emergencies and outline in detail how to back up key systems in case of failure. Yet the plans fail to envision the kind of worst-case scenario that befell Japan: damage so extensive that the plant couldn't respond on its own or call for help from nearby plants. There are no references to Tokyo firefighters, Japanese military forces or U.S. equipment, all of which the plant operators eventually relied upon to battle their overheating reactors.
38. Chernobyl Nuclear accident that occurred on 26 April 1986 at the Chernobyl Nuclear Power Plant in the Ukrainian SSR (now Ukraine). It is considered the worst nuclear power plant accident in history, and it is the only one classified as a level 7 event on the International Nuclear Event Scale.
39. Chernobyl There was a sudden power output surge, and when an emergency shutdown was attempted, a more extreme spike in power output occurred, which led to a reactor vessel rupture and a series of explosions.
40. Chernobyl The resulting fire sent a plume of highly radioactive smoke fallout into the atmosphere and over an extensive geographical area. The plume drifted over large parts of the western Soviet Union and Europe. From 1986 to 2000, 350,400 people were evacuated and resettled from the most severely contaminated areas of Belarus, Russia, and Ukraine.
42. Where did the Japanese purchase the nuclear reactors?
43.
44. But GE surely hasn’t had this happen before with one of their nuclear reactors?
45. Three Mile Island The plant is widely known for having been the site of the most significant accident in United States commercial nuclear energy, on March 28, 1979, when TMI-2 suffered a partial meltdown.
46. Three Mile Island On March 28, 1979, there was a cooling system malfunction that caused a partial melt-down of the reactor core. This loss-of-coolant accident resulted in the release of a significant amount of radioactivity
48. Three Mile Island The nuclear power industry claims that there were no deaths, injuries or adverse health effects from the accident, and a report by Columbia University epidemiologist Maureen Hatch agrees with this finding. Another study by Steven Wing of the University of North Carolina found that lung cancer and leukemia rates were 2 to 10 times higher downwind of TMI than upwind
49. Back to Daiichi If you’re nuclear rods are too hot, you need to cool them down.
51. Daiichi Reactor Seawater was used to try to cool the rods. However, seawater is highly corrosive and there was fear is could rupture the containment vessel. The Japanese started to pump fresh water into the reactor instead.
52. Daiichi Nuclear Reactor Question, where does all of that radioactive water go? Japan officials are now warning that groundwater near the damaged nuclear power plant in Japan has radioactive contamination. These officials go on to show that the radioactive material in the water is 10,000 times the government health standard.
55. USS Ronald Reagan The nuclear-powered USS Ronald Reagan was about 100 miles northeast of the power plant when trace amounts of radiation were detected on 17 helicopter crew members from the carrier after their aircraft flew through a radioactive plume generated by the disabled power plant. It was likely released when Japanese officials vented pressurized vapor from inside the plant to avert a meltdown.
56. Radiation detected in Colorado Colorado has joined a handful of states in detecting trace amounts of radiation from Japan's Fukushima nuclear power plant. The Colorado Department of Public Health (CDPHE) explained that the levels are not any cause for concern.
57. Seafood Exports Fear about radiation from the nuclear power plant disaster in Japan is causing sales of seafood to dive in South Korea. The Thai Food and Drug Administration (FDA) on Friday warned that during the coming one or two weeks, seafood imports from Japan, especially small fish, are tenable to be contaminated with radiation and asked consumers to avoid those seafood.
58. Beef Exports Radiation exceeding the legal limit was detected for the first time in Japanese beef, as the fallout out from a nuclear crisis at the Fukushima nuclear plant entered its 21st day Friday.
59. FDA halts imports of dairy, produce from Japan Low levels of radiation have turned up in milk samples from two U.S. states, both on the West Coast. Officials say there is no public health threat. Traces of radioactive Iodine-131 were found in milk in California and Washington state, according to federal and state authorities who are monitoring for contamination as the nuclear crisis unfolds in Japan.
60. Germany and Chernobyl A quarter century after the Chernobyl nuclear disaster in the Soviet Union carried a cloud of radiation across Europe, these animals are radioactive enough that people are urged not to eat them. And the mushrooms the pigs dine on aren't fit for consumption either.
61. Germany and Chernobyl The German boars roam in forests nearly 950 miles (1,500 kilometers ) from Chernobyl. Yet, the amount of radioactive cesium-137 within their tissue often registers dozens of times beyond the recommended limit for consumption and thousands of times above normal.
62. Japan and the Price of Oil If Libya produces 2% of the world’s oil, why haven’t oil prices jumped higher? Japanese demand for oil has dramatically decreased due to the tsunami. Plants were closed and workers were unable to drive Japanese demand will increase as plants come back on line and oil is used to offset the loss of energy produced by Daiichi
63. Japanese Recovery Earthquake insurance will be the largest in history Losses related to the tsunami could be $10 billion or higher 11,620 people dead and 16,464 others unaccounted