For the first time in history the entire world is dominated by two large, powerful nations armed with murderous nuclear weapons that make conventional warfare of the past a nullity.

This event also triggered the second largest nuclear accident in history, and one of only two events to be classified as a Level 7 on the International Nuclear Event Scale.

A minor nuclear war with each country using 50 Hiroshima-sized atom bombs as airbursts on urban areas could produce climate change unprecedented in recorded human history.

The three-spine stickleback provides an example of how molecular biogeographic studies that rely solely on mtDNA can be misleading, and that consideration of the genealogical history of alleles from multiple unlinked markers ( i. e. nuclear genes ) is necessary to infer speciation histories.

However, not all technology has been used for peaceful purposes ; the development of weapons of ever-increasing destructive power has progressed throughout history, from clubs to nuclear weapons.

** Halifax Explosion: Two freighters collide in Halifax Harbour at Halifax, Nova Scotia and cause a huge explosion that kills at least 1, 963 people, injures 9, 000 and destroys part of the city ( until the Trinity nuclear test, the biggest manmade explosion in recorded history ).

The official technical history for that first nuclear test states, " All signal lines were completely shielded, in many cases doubly shielded.

With his unique personality, political connections, responsibilities, and depth of knowledge regarding naval nuclear propulsion, Rickover became the longest-serving naval officer in U. S. history with 63 years active duty.

The Belgian company Union Minière du Haut Katanga provided the United States with much of the uranium required by the Manhattan Project and the early cold war ( see: history of nuclear weapons ).

It is regarded as the worst nuclear accident in the history of nuclear power.

A problem with future history science fiction is that it will date and be overtaken by real historical events, for instance H. Beam Piper's future history, which included a nuclear war in 1973, and much of the future history of Star Trek.

For example, Poul Anderson started The Psychotechnic League history in the early 1950s, assuming a nuclear war in 1958 — then a future date.

So, in your discussions of the nuclear freeze proposals, I urge you to beware the temptation of pride, the temptation of blithely declaring yourselves above it all and label both sides equally at fault, to ignore the facts of history and the aggressive impulses of an evil empire, to simply call the arms race a giant misunderstanding and thereby remove yourself from the struggle between right and wrong and good and evil.

* ITER, an international scientific experiment ( the 2nd largest in world history ) in developing nuclear fusion as an energy source will begin its first plasma experiments.

Tsar Bomba (; " Emperor Bomb ") is the nickname for the AN602 hydrogen bomb, the most powerful nuclear weapon ever detonated and its October 30, 1961 test was the most powerful artificial explosion in human history.

It was the worst accident in U. S. commercial nuclear power plant history, and resulted in the release of small amounts of radioactive gases and radioactive iodine into the environment.

Global history of the use of nuclear power.

In 1949, the Atomic Energy Commission opened the National Reactor Testing Station in the desert west of the city, and on Dec. 20, 1951, a nuclear reactor produced useful electricity for the first time in history.

On January 3, 1961, the site was the scene of the only fatal nuclear reactor incident in U. S. history.

The township includes the Three Mile Island Nuclear Generating Station, the location of the largest accident in the history of the American nuclear power generating industry, which took place in 1979.

Using nuclear and mitochondrial DNA-sequence data to explore the phylogenic history of the green iguana, scientists from Utah Valley State College studied animals collected from 17 different countries.

The titles he could read easily through the criss-crossed wires: works on theology, astral physics, history, biology, political science.

Hundreds of other organizations exist in the various sub-fields of anthropology, sometimes divided up by nation or region, and many anthropologists work with collaborators in other disciplines, such as geology, physics, zoology, paleontology, anatomy, music theory, art history, sociology and so on, belonging to professional societies in those disciplines as well.

As a scientist, he was a major figure in the American Enlightenment and the history of physics for his discoveries and theories regarding electricity.

Understanding this earliest of eras in the history of the Universe is currently one of the greatest unsolved problems in physics.

On November 29, 1921, the trustees declared it to be the express policy of the Institute to pursue scientific research of the greatest importance and at the same time " to continue to conduct thorough courses in engineering and pure science, basing the work of these courses on exceptionally strong instruction in the fundamental sciences of mathematics, physics, and chemistry ; broadening and enriching the curriculum by a liberal amount of instruction in such subjects as English, history, and economics ; and vitalizing all the work of the Institute by the infusion in generous measure of the spirit of research.

Catapult projects can inspire students to study different subjects including physics, engineering, science, math and history.

In a similar way, evidence about the history of the universe is drawn from astronomy, astrophysics, planetary geology, and physics.

Berthollet was one of several scientists who went with Napoleon to Egypt, and was a member of the physics and natural history section of the Institut d ' Égypte.

Mayr is sometimes credited with inventing modern philosophy of biology, particularly the part related to evolutionary biology, which he distinguished from physics due to its introduction of ( natural ) history into science.

" His concentration was in the history of physics, and he was bored and unsuccessful in the prerequisite physics classes he had to take.

This observation made him one of the first scholars in ancient physics to address the role of time in the universe, one of the most important concepts even in the modern history of physics.

The best-known instance of the parabola in the history of physics is the trajectory of a particle or body in motion under the influence of a uniform gravitational field without air resistance ( for instance, a baseball flying through the air, neglecting air friction ).

The following is a gallery of highly influential and important figures in the history of physics.

In the early 1960s he began his studies in Uppsala University, initially in mathematics, and thereafter theoretical physics, aesthetics, history of ideas and astronomy.

The derivation of special relativity depends not only on these two explicit postulates, but also on several tacit assumptions ( made in almost all theories of physics ), including the isotropy and homogeneity of space and the independence of measuring rods and clocks from their past history.

The 1891 founding professors included Robert Allardice in mathematics, Douglas Houghton Campbell in botany, Charles Henry Gilbert in zoology, George Elliott Howard in history, Oliver Peebles Jenkins in physiology and histology, Charles David Marx in civil engineering, Fernando Sanford in physics and John Maxson Stillman in chemistry.

In specific disciplines, Stanford was ranked in English ( in the United States ), in modern languages ( 7 ), in history ( 8 ), in philosophy ( 4 ), in geography & area studies ( 4 ), in linguistics ( 3 ), in computer science ( 2 ), in civil & structural engineering ( 2 ), in chemical engineering ( 3 ), in electrical engineering ( 2 ), in mechanical, aeronautical, & manufacturing engineering, in medicine ( 3 ), in biological sciences ( 3 ), in chemistry ( 4 ), in physics and astronomy ( 4 ), in metallurgy ( 4 ), in mathematics ( 3 ), in environmental sciences ( 4 ), in earth and marine sciences ( 6 ), in psychology ( 2 ), in sociology ( 4 ), in statistics, in politics and international studies ( 4 ), in law ( 3 ), in economics ( 3 ), and in account and finance.

However, in physics, it is common to treat an extended object as a " particle " or " field " with its own unique ( e. g. center of mass ) position at any given time, so that the world line of a particle or light beam is the path that this particle or beam takes in the spacetime and represents the history of the particle or beam.

Because of this history, the statistical physics is often considered synonymous with statistical mechanics or statistical thermodynamics.

The scientific revolution refers to the history of science in the early modern period, where development in mathematics, physics, astronomy, biology, medicine and chemistry transformed views of society and nature.

Bertrand Russell offered a " solution " to the paradoxes based on modern physics, but Brown concludes " Given the history of ' final resolutions ', from Aristotle onwards, it's probably foolhardy to think we've reached the end.