Sentences with phrase «of nuclear chain reactions»

It is the intellectual equivalent of a nuclear chain reaction, which might very well be the most powerful force most of us will ever experience.

The second biggest was Kerry Mullis» discovery of PCR, the cell - multiplying miracle that was the biological equivalent of a nuclear chain reaction.

Not exact matches

Forty - five years after Humanae Vitae, it now seems clear that the invention of the oral contraceptive pill (to adopt one reference point for the broader contraceptive revolution) was one of the three achievements of 20th - century science with truly world - historical impact, the other two being the creation of the self - sustaining nuclear chain reaction and the unraveling of the DNA double helix.

Should the earth and all its resident populations be devoured this evening by a chain reaction of nuclear holocausts, must that too be in at least partial accord with God's aim at «universal intensity of satisfaction?»

To spark a chain reaction, nuclear bomb makers need large stockpiles of particles.

The anniversary of the first controlled nuclear chain reaction marks an achievement of immigrants who served America in World War II.

The science has come a long way since Szilard's vision and Fermi's proof of a controlled nuclear chain reaction.

As a result, the nuclear chain reaction in their Chicago experiment could have spiraled out of control, with potentially devastating results.

But it did list more than a half - dozen issues that could jeopardize the plant if it were confronted with the kind of chain reaction of unexpected and unplanned - for calamities that struck the Fukushima nuclear complex.

For one thing, there's a chance that enough plutonium could congregate to trigger a nuclear chain reaction, or criticality — the self - sustaining cascade of atomic fission that releases massive amounts of energy.

Fermi, despite being an immigrant, was put in charge of constructing an «atomic pile» (nowadays nuclear reactor) to verify the chain reaction theory.

In December 1942 Enrico Fermi achieved the first self - sustaining nuclear chain reaction, harnessing the process that would be used to lay waste to the Japanese cities of Nagasaki and Hiroshima in August 1945.

Pound for pound, nuclear explosives — which derive their power from runaway chain reactions in their radioactive fuel — carry about a million times the energy density of chemical explosives.

On 2 December 1942, some of the world's leading scientists crowded into a disused squash court to stage the first controlled nuclear chain reaction

A student of Enrico Fermi, Fano played a central role in the early development of modern atomic physics, carrying out the first controlled nuclear chain reaction in 1942.

But Neile Miller, who was then the acting head of the National Nuclear Security Administration in Washington, says those experts specifically told her that Los Alamos didn't have enough personnel who knew how to handle plutonium so it didn't accidentally go «critical» and start an uncontrolled chain reaction.

Unfortunately, it also has an active seismic zone beneath the PF - 4 building, producing persistent worries among the staff and members of the Defense Nuclear Facilities Safety Board, a congressionally - chartered oversight group, that if it experienced a rare, large earthquake, the roof could collapse and toss chunks of plutonium so closely together a chain reaction would ensue, spewing radioactive, cancer - causing plutonium particles throughout nearby residential communities.

«Subsequently, because of his conviction that if a nuclear chain reaction could be made to work it might be used as an instrument of war to set up violent explosions, Szilard separated that part of the application which related to the nuclear chain reaction and incorporated it in modified form into a later filed application, No. 19157, which he assigned to the British Admiralty in order to prevent its publication.

So they drafted a second set of letters in drafts to the President of the United States, warning him about nuclear chain reactions and their military potential.

So Einstein realized just how special the nuclear chain reaction and the release of the energy in an atom would be.

Having this now certified, Szilard was really scared of what would happen with a nuclear chain reaction in the wrong hands.

Content includes description of background radiation, description and animation of nuclear fission and diagram explaining how this leads to a chain reaction.

Strategically combining Fusion Blocks into massive structures then linking the blocks to a string of like - colored Energy Orbs will ignite a chain reaction of nuclear proportions and super scores.

Commissioned to commemorate the 25th anniversary of the first controlled nuclear chain reaction.

While nuclear energy is regarded as the lesser of the two evils when compared at an emission level to the burning of fossil - fuels, it may trump on the containment of the heat process, which burns in a contained nuclear reactor through an in - ward heat - chemical reaction called fission, but nuclear energy production is a chain from uranium mining to the toxic waste disposal and therefore as an entire process is an equally high risk environmental option.