Before Deng launched his four modernizations, China had acquired global military reach by testing its first intercontinental ballistic missile, the DF 5, with a range of 12,000 kilometers (7,500 miles), and developing a thermonuclear warhead.

It was then decided to use a W25 warhead, a small, lightweight warhead with a relatively low 1.7 kiloton yield.

So, that was the result. It was Mike, the first thermonuclear bomb, in 1952.

Pyongyang claims that Korean nuclear experts have created an atomic warhead.

Pyongyang claims that it has managed to produce a nuclear warhead.

This includes a unique shaped charge warhead that delivers outstanding behind armour effects inside the target.

The hardest part still lies ahead the miniaturization needed to fit a nuclear device into a warhead.

Abandoning START II would allow Russia to fit three nuclear warheads to each of its new, single warhead Topol M missiles.

Abandoning START II would allow Russia to fit three nuclear warheads to each of its new, single warhead Topol M missiles.

In addition, the space vehicle carrying the weapon might malfunction, and the nuclear warhead could land (and perhaps detonate) somewhere on Earth.

Even if the nuclear warhead broke the asteroid into many small pieces, they could have time to re combine into another large object.

France is now rushing to construct the International Thermonuclear Experimental Reactor, (ITER), which is supposed to show that nuclear fusion can be used to power nuclear power stations.

Because the chemicals are likely to corrode the warhead over time, extended storage has a high probability of leakage and degradation of the weapon.

Because the chemicals are likely to corrode the warhead over time, extended storage has a high probability of leakage and degradation of the weapon.

India almost certainly has a multiple warhead (known as a MIRV), in development, and has also launched satellites to aid its targeting of Pakistan s forces.

Instead of continuing with their own design, the British were given access to the design of the smaller American Mk 28 warhead and were able to manufacture copies.

British knowledge on how to make a thermonuclear fusion bomb was rudimentary, and at the time the United States was not exchanging any nuclear knowledge because of the Atomic Energy Act of 1946.

And that is, on August 6th, 1945, a B 29 bomber called the Enola Gay flew over Japan and, using a Norden bombsight, dropped a very large thermonuclear device on the city of Hiroshima.

On well known blog Brown Moses, who has followed the Syrian civil war closely, Richard M. Lloyd, a warhead technology consultant at Tesla Laboratory Inc., examined the barrel bomb technology in a December 2013 post

India has deployed a nuclear triad bombers, missiles, and submarines and in 2012 tested an intercontinental ballistic missile, giving it the ability to hit Beijing and Shanghai. India almost certainly has a multiple warhead (known as a MIRV), in development, and has also launched satellites to aid its targeting of Pakistan s forces.

The secretive naval build up of Kaiser Wilhelm II s Germany, for example, helped incite World War I. US President John F. Kennedy s belief that a missile gap existed in the Soviet Union s favor inspired the production of multiple warhead nuclear missiles, accelerating the nuclear arms race at the height of the Cold War.