Machine learning & AI
Dutch officials urged the creation of clear definitions on how artificial intelligence can be used in war, as a conference billed as the first of its kind to tackle the issue opened on Wednesday.
Feb 15, 2023
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Security
As malicious actors become more adept in their attempts to circumvent international nuclear nonproliferation safeguards, the United States government has invested in research to better detect bad actors' malign activities. ...
Nov 3, 2022
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Engineering
Russia used a hypersonic missile against a Ukrainian arms depot in the western part of the country on March 18, 2022. That might sound scary, but the technology the Russians used is not particularly advanced. However, next-generation ...
Apr 18, 2022
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Energy & Green Tech
On the 75th anniversary of the bombings of Hiroshima and Nagasaki, some may like to think the threat from nuclear weapons has receded. But there are clear signs of a growing nuclear arms race and that the U.S. is not very ...
Aug 7, 2020
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Energy & Green Tech
July 15, 2020 marks 75 years since the detonation of the first nuclear bomb. The Trinity Test, in New Mexico's Jornada del Muerto desert, proved that the design for the Nagasaki Bomb worked and started the nuclear era.
Jul 15, 2020
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Security
People around the world may be worried about nuclear tensions rising, but I think they're missing the fact that a major cyberattack could be just as damaging—and hackers are already laying the groundwork.
Aug 19, 2019
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Energy & Green Tech
A new paper details how small samples of ubiquitous building materials, such as tile or brick, can be used to test whether a facility has ever stored high enriched uranium (HEU), which can be used to create nuclear weapons. ...
Jul 10, 2019
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Security
Cyberattackers pose many threats to a wide range of targets. Russia, for example, was accused of hacking Democratic Party computers throughout the year, interfering with the U.S. presidential election. Then there was the ...
Dec 13, 2016
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Energy & Green Tech
The United States on Thursday signed a nuclear cooperation agreement with the Philippines, clearing a path for US investment to jumpstart atomic power in a country racing to expand its electricity supply.
Nov 17, 2023
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Machine learning & AI
The story of the invention of the atomic bomb told in the new film "Oppenheimer" is a "warning" to the world as we grapple with artificial intelligence, insists the movie's director Christopher Nolan.
Jul 20, 2023
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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
