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    Magnetic Resonant Imaging Mechanics

    1) You are correct. The released energy is electromagnetic radiation. The frequency of the radiation depends on the strength of the static magnetic field in the MRI as well as the duration of the pulsed magnetic field. In case you don't know what these two things are, here is a youtube video of...
  2. K

    Change in fine structure constant

    The more pertinent sections of the wikipedia article on the fine structure constant are "Is the fine-structure constant actually constant?" and "Anthropic explanation". The cited paper by Barrow, "Cosmology, Life, and the Anthropic Principle", was a good read as well. It's probably silly to...