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This is the first time the clock has moved forward since 2023. The Bulletin of Atomic Scientists tracks man-made threats and focuses on three main hazard areas — nuclear risk, ...
In 2020, the clock was set at 100 minutes to midnight, and remained unchanged for the next three years. Although originally intended to warn of the threat of nuclear Armageddon, the Doomsday Clock ...
The symbolic clock now reads 89 seconds to midnight after advancing one second since last year's reset. It is now the closest to midnight since the introduction of the clock in 1947.
The Soviet Union tests its first atomic bomb, the RDS-1, starting the nuclear arms race. 1953 2 23:58 −1 The United States tests its first thermonuclear device in November 1952 as part of Operation Ivy, before the Soviet Union follows suit with the Joe 4 test in August. This remained the clock's closest approach to midnight (tied in 2018 ...
An accurate rule of thumb, applicable in the time-period of days to a few weeks post-detonation which approximates the radioactive dose rate generated by the decay of the myriad of isotopes present in nuclear fallout, is the "7/10 rule". [133] [105] The rule states that for each 7-fold increase in time the dose rate drops by a factor of 10. [134]
Nukemap (stylised in all caps) is an interactive map using Mapbox [1] API and declassified nuclear weapons effects data, created by Alex Wellerstein, a historian of science at the Stevens Institute of Technology who studies the history of nuclear weapons.
The Bulletin of the Atomic Scientists has set its Doomsday Clock at a new time that indicates how close we are to making Earth uninhabitable for humanity. The Bulletin of the Atomic Scientists has ...
This crash project was developed partially with information obtained via the atomic spies at the United States' Manhattan Project during and after World War II. The Soviet Union was the second nation to have developed and tested a nuclear weapon. It tested its first megaton-range hydrogen bomb ("RDS-37") in 1955.