Energy & Green Tech
Sandia National Laboratories recently updated the Maccs code to better aid the Nuclear Regulatory Commission and the global nuclear industry in assessing the consequences of nuclear accidents. The Maccs code can also evaluate ...
Feb 17, 2022
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Engineering
A machine-learning algorithm developed at Sandia National Laboratories could provide auto manufacturing, aerospace and other industries a faster and more cost-efficient way to test bulk materials.
Feb 15, 2022
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Energy & Green Tech
Nuclear power generation can play a crucial role in helping the world reach a key goal of zero carbon emissions by the middle of the century, especially in countries with low wind resources, according to new work in Nature ...
Feb 14, 2022
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Energy & Green Tech
Many people are frightened of radiation, thinking of it as an invisible, man-made and deadly force, and this fear often underpins opposition to nuclear power. In fact, most radiation is natural and life on Earth wouldn't ...
Feb 14, 2022
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Energy & Green Tech
A team from the International Atomic Energy Agency on Monday began its review of Japan's plan to begin releasing more than a million tons of treated radioactive water into the sea from the wrecked Fukushima nuclear plant—a ...
Feb 14, 2022
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Energy & Green Tech
How can we reduce the carbon footprint of electricity consumption in Switzerland? The country relies on electricity imports from fossil fuel power plants, which are major emitters of greenhouse gases. A team of researchers ...
Feb 11, 2022
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Energy & Green Tech
The largest public power company in the U.S. is launching a program to develop and fund new small modular nuclear reactors as part of its strategy to dramatically reduce greenhouse gas emissions.
Feb 10, 2022
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Energy & Green Tech
A remote-controlled robot has captured images of what appears to be mounds of nuclear fuel that melted and fell to the bottom of the most damaged reactor at Japan's wrecked Fukushima nuclear plant, officials said Thursday.
Feb 10, 2022
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Energy & Green Tech
French President Emmanuel Macron called Thursday for a "renaissance" for the country's nuclear industry, saying he wanted up to 14 new reactors to power the country's transition away from fossil fuels.
Feb 10, 2022
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Energy & Green Tech
West Virginia Gov. Jim Justice on Tuesday signed a bill eliminating the state's ban on nuclear power plants but cautioned against jumping in to diversify the coal-dependent state's energy offerings.
Feb 9, 2022
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A nuclear weapon is an explosive device that derives its destructive force from nuclear reactions, either fission or a combination of fission and fusion. Both reactions release vast quantities of energy from relatively small amounts of matter; a modern thermonuclear weapon weighing little more than a thousand kilograms can produce an explosion comparable to the detonation of more than a billion kilograms of conventional high explosive. Even small nuclear devices can devastate a city. Nuclear weapons are considered weapons of mass destruction, and their use and control has been a major aspect of international policy since their debut.
In the history of warfare, only two nuclear weapons have been detonated offensively, both near the end of World War II. The first was detonated on the morning of 6 August 1945, when the United States dropped a uranium gun-type device code-named "Little Boy" on the Japanese city of Hiroshima. The second was detonated three days later when the United States dropped a plutonium implosion-type device code-named "Fat Man" on the city of Nagasaki, Japan. These bombings resulted in the immediate deaths of around 120,000 people (mostly civilians) from injuries sustained from the explosion and acute radiation sickness, and even more deaths from long-term effects of ionizing radiation. The use of these weapons was and remains controversial. (See atomic bombings of Hiroshima and Nagasaki for a full discussion.)
Since the Hiroshima and Nagasaki bombings, nuclear weapons have been detonated on over two thousand occasions for testing purposes and demonstration purposes. The only countries known to have detonated nuclear weapons—and that acknowledge possessing such weapons—are (chronologically) the United States, the Soviet Union (succeeded as a nuclear power by Russia), the United Kingdom, France, the People's Republic of China, India, Pakistan, and North Korea. Israel is also widely believed to possess nuclear weapons, though it does not acknowledge having them. (For more information on these states' nuclear programs, as well as other states that formerly possessed nuclear weapons or are suspected of seeking nuclear weapons, see list of states with nuclear weapons.)
This text uses material from Wikipedia, licensed under CC BY-SA
