Describing nuclear weapons and how they work

How do nuclear bombs work?

Describing nuclear weapons and how they work

Penney who had a prominent part of the British Mission at Los Alamos during the war. Penney's area of specialty was studying the physics of hydrodynamic waves, both shock waves and the more familiar ocean gravity waves.

Penney had designed and supervised development of the mobile breakwaters used to protect the landing sites of the Normandy D-Day Invasion in At Los Alamos Penney's principal assignment was studying the damage effects from the blast wave of the atomic bomb, but he became involved in implosion studies as well and spent up to half his time working in this area.

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His expertise in ocean waves was also called upon to investigate the effects of underwater explosions. Penney's combination of expertise, analytical skill, effective communication, and the ability to translate them into practical application soon made him one of the five members of the Los Alamos "brain trust" that made key decisions in the direction of the program, putting him in the company of Robert Oppenheimer, John Von Neumann, "Deke" Parsons and Norman Ramsey.

On 27 April Penney became one of only two representatives from Los Alamos and the only Briton to be part of the ten man Target Committee that drew up the list of targets for the atomic bombing of Japan.

Penney travelled to Tinian Island in the Pacific to be on hand for planning and briefing the atomic bombing missions. Penney actually witnessed the bombing of Nagasaki, flying in an observation plane accompanying the attack. Afterward he conducted damage surveys there on the ground.

Penney returned to Imperial College immediately after the war, but soon received other offers. He turned down the prestigious Sedleian chair of mathematics at Oxford University, and accepted an offer tendered to him by C.

Penney's appointment was announced 1 January No decision had been made by the British government at that point to develop an atomic bomb, but clearly Penney realized that this decision was inevitable and when it happened the responsibility would fall to him to lead the effort.

Penney was soon called away from his post in London at the request of General Groves to participate in the first post-war nuclear test called Operation Crossroads.

Section The First Nuclear Weapons

Operation Crossroads was conducted at Bikini Atoll by ships and 42, men and tested the effect of two atomic bombs on a captive test fleet of warships. On 1 October Penney returned to London and at the request of Lord Portal spent the month writing a ten page report outlining a plan for developing an atomic bomb.

Penney met with Portal to discuss the plan on 4 November. Penney then returned to preparing a final report on the Crossroads tests, and travelled to Washington DC in December to present his findings, returning to London in February. On 8 January the secret GEN.

Curiously Penney did not receive word of this decision until May when he was finally asked by Portal to lead Britain's own nuclear weapon program. The decision was not disclosed publicly in any respect until 12 Maywhen an oblique reference was made to atomic weapon development in parliamentary discussions.

In June Penney began assembling a team to work on the bomb. One of his first steps was to prepare a document describing the design of the U.

This report was completed on 1 July, and gave the British atomic weapons program a starting design description roughly equivalent in terms of detail to the description provided the Soviets by Klaus Fuchs. Penney's plan, entitled Plutonium Weapon - General Description is available on this website.

It is complete with Penney's written report, and his diagrams of the planned weapon. Furthermore not all aspects of bomb development resided with BHER. Although BHER was responsible for the overall weapon design, and the development and fabrication of the implosion system, the manufacture of the plutonium core initially resided with the plutonium production program under Hinton.

This created problems in organization since lines of authority with other research sites were often not clear.

Is Obama Changing His Mind About Nuclear Weapons? - POLITICO Magazine

By mid the responsibilities had been settled, and on 1 April a single site was selected for atomic weapons development at Aldermaston in Berkshire.

A site for the first plutonium production reactors and plutonium processing plant was selected at Sellafield on the Irish Sea coast in Cumberland.War Room. Is Obama Changing His Mind About Nuclear Weapons?

The administration is now spending far more to refurbish them than to reduce them.

Isaiah prophesied the destruction and abandonment of Damascus, Syria over 2, years ago. Yet the city continues today, despite so many Middle East wars and predictions that "this year" it .

Residents of D.C. and Virginia may see some odd scenes in the sky overnight. The North American Aerospace Defense Command (NORAD) has exercises planned for the Washington, D.C.

and Richmond area.. Exercise flights will take place around the National Capital Region and the area between D.C. and Richmond as they practice intercept and identification procedures.

Describing nuclear weapons and how they work

Modern nuclear weapons work by combining chemical explosives, nuclear fission, and nuclear fusion. The explosives compress nuclear material, causing fission; the fission releases massive amounts of energy in the form of X-rays, which create the high temperature and pressure needed to ignite fusion.

The nuclear program of Iran has included several research sites, two uranium mines, a research reactor, and uranium processing facilities that include three known uranium enrichment plants. In , Iran ratified the Non-Proliferation Treaty (NPT), making its nuclear program subject to the IAEA's verification..

Iran's nuclear program was launched in the s with the help of the United States. The Design of Gadget, Fat Man, and "Joe 1" (RDS-1) The design of the Gadget and Fat Man devices are discussed together since they are basically the ashio-midori.com was an experimental test version of the implosion system used in Fat Man and were identical in all but a couple of details.

A test of the implosion bomb was considered essential due to the newness of the explosive wave shaping.

Nuclear weapons in popular culture - Wikipedia