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In Conversation with: Paul Bracken, Expert on Nuclear ‘Power Politics’

By Guest PostFebruary 20, 2013Politicsatomic bomb, cold war, collapse, critical regions, department of defense, expert, food, iran, Japan, mirv, missile, multiple warhead icbm, north korea, nuclear power politics, nuclear test, oil donations, paul bracken, political science, pyongyang, second nuclear age, south korea, submarines, un. china, united states, Washington, weapons program, world, yale

North Korea, which just conducted its third nuclear test, is using its weapons program to deter the United States by holding its allies “hostage,” according to Paul Bracken, who teaches management and political science at Yale.

Bracken is a member of the Council on Foreign Relations, serves on several Department of Defense advisory boards, and is the author, most recently, of “The Second Nuclear Age: Strategy, Danger, and the New Power Politics” (Times Books, 2012). The following is an edited version of an email interview with him. (more…)

Testing Einstein’s E=mc2 in Outer Space

By Guest PostJanuary 5, 2013Sciencealbert einstein, andrei lebed, atomic bomb, conceptual model, cornell university library, curvature, electron, energy, energy level, everything, explosion, galileo galilei, general relativity, gps navigation, gravitational field, gravitational mass, gravity, hydrogen atom, iconic equation, mass, motion, moving object, nucleus, object, paradigm in physics, principles in physics, proton, quantum mechanics, quantum objects, relativistic, Space, special relativity, speed of light, stockholm, theory, theory of gravitation, ua physicist, unifying theory, university of arizona

UA physicist Andrei Lebed has stirred the physics community with an intriguing idea yet to be tested experimentally: The world’s most iconic equation, Albert Einstein’s E=mc2, may be correct or not depending on where you are in space.

With the first explosions of atomic bombs, the world became witness to one of the most important and consequential principles in physics: Energy and mass, fundamentally speaking, are the same thing and can, in fact, be converted into each other.

This was first demonstrated by Albert Einstein’s Theory of Special Relativity and famously expressed in his iconic equation, E=mc2, where E stands for energy, m for mass and c for the speed of light (squared). (more…)

Mutations in Single Gene May Have Shaped Human Cerebral Cortex

By Guest PostApril 29, 2011Scienceatomic bomb, centrosomal nde1, evolution of the human brain, gene, genetic analysis, human brain, human cerebral cortex, mehmet bakircioglu, microcephaly, murat gunel, pakistani families, poetry, saliha yilmaz, saudi arabia, Shakespeare, turkey, turkish family

The size and shape of the human cerebral cortex, an evolutionary marvel responsible for everything from Shakespeare’s poetry to the atomic bomb, are largely influenced by mutations in a single gene, according to a team of researchers led by the Yale School of Medicine and three other universities.

The findings, reported April 28 in the American Journal of Human Genetics, are based on a genetic analysis of in one Turkish family and two Pakistani families with offspring born with the most severe form of microcephaly. The children have brains just 10 percent of normal size. They also lacked the normal cortical architecture that is a hallmark of the human brain. This combination of factors has not been seen in other genes associated with the development of the human brain, the authors note. (more…)

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In Conversation with: Paul Bracken, Expert on Nuclear ‘Power Politics’

Testing Einstein’s E=mc2 in Outer Space

Mutations in Single Gene May Have Shaped Human Cerebral Cortex