Richard Feynman is a physicist who won the Nobel Prize,  worked on the Manhattan Project, he played a key role in explaining the Space Shuttle Challenger disaster, and he is known for the “Feynman diagrams” that symbolize particle collisions. He gave famous introductory lectures on physics, which is now available online. The online edition features […]

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David Joseph Bohm lived from 20 December 1917 to 27 October 1992. He was an American theoretical physicist who contributed innovative and unorthodox ideas to quantum theory, philosophy of mind, and neuro-psychology. He is considered to be one of the most significant theoretical physicists of the 20th century. He was a good friend of Einstein. […]

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Here are some quotes about the controversy between reductionism and emergence as basic paradigm for physics. Robert Laughlin: A Different Universe: Reinventing Physics from the Bottom Down. 2005. From the Introduction: “Much as I dislike the idea of ages, I think a good case can be made that science has now moved from an Age of […]

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“Where did they [i.e., 10 to the power of 80 particles in the universe] all come from? The answer is that, in quantum theory, particles can be created out of energy in the form of particle/antiparticle pairs. But that just raises the question of where the energy came from. The answer is that the total energy of the universe is exactly zero.”

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Quantum mechanics is a branch of physics; it was developed between 1900 and 1930, and  it explains the behavior of sub-atomic particles, atoms, molecules and nuclei. Attempts to combine it with the general and special theory of relativity leads to new and revolutionary types of theories. Experimental evidence forced the creation of new concepts, like […]

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The most exciting phrase to hear in science, the one that heralds new discoveries, is not ‘Eureka!’ (I found it!) but ‘That’s funny …’ Isaac Asimov (1920 – 1992) The most beautiful thing we can experience is the mysterious. It is the source of all true art and science. – Albert Einstein (1879 – 1955) […]

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