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The builders experimented with several methods of providing the new submarine with self-propulsion, including McClintock's electromagnetic drive, followed by a custom steam engine, but eventually settled on a simple hand-cranked propulsion system as they felt that the time and money lost in implementing such an engine would not be worth the ...
a Russian counterpart to the American NR-1 clandestine nuclear DSV, is a relatively large, deep-diving nuclear submarine of 2,000 tons submerged displacement that is intended for oceanographic research and clandestine missions.
[162] [217] [218] The project initially had four options: a Military-Off-The-Shelf (MOTS) design without modification, a MOTS design modified for Australian conditions, an evolution of an existing submarine, or a newly designed submarine. [219] [220] Nuclear propulsion was ruled out because of the lack of nuclear infrastructure and public ...
Grand Fenwick then uses the threat of the Q-Bomb to force the nuclear powers to accept a nuclear disarmament agreement. In the end Dr. Kokintz discovers the Q-Bomb is actually a dud, but decides it is in the best interest of humanity to keep this fact a secret. [65] Quantonium Monsters vs. Aliens: A blue-green luminescent material that is used ...
Project Excalibur was a Lawrence Livermore National Laboratory (LLNL) Cold War–era research program to develop an X-ray laser system as a ballistic missile defense (BMD) for the United States. The concept involved packing large numbers of expendable X-ray lasers around a nuclear device, which would orbit in space.
In a fission nuclear reactor, uranium-238 can be used to generate plutonium-239, which itself can be used in a nuclear weapon or as a nuclear-reactor fuel supply. In a typical nuclear reactor, up to one-third of the generated power comes from the fission of 239 Pu, which is not supplied as a fuel to the reactor, but rather, produced from 238 U. [5] A certain amount of production of 239
The Fukushima nuclear accident was a major nuclear accident at the Fukushima Daiichi Nuclear Power Plant in Ōkuma, Fukushima, Japan, which began on 11 March 2011. The proximate cause of the accident was the 2011 Tōhoku earthquake and tsunami , which resulted in electrical grid failure and damaged nearly all of the power plant's backup energy ...
The usage of the zero in the Bakhshali manuscript was dated from between 3rd and 4th centuries, making it the earliest known usage of a written zero, in a decimal place value system. [172] Hindu number system – With decimal place-value and a symbol for zero, this system was the ancestor of the widely used Arabic numeral system. It was ...