Recent content by Eximus

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    Graduate The acceleration of mass using light

    I am not certain, but intuition tells me this is possible in a vacuum using photons of energies lower than the atom's ionization energy.
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    Graduate Moment of inertia and friction

    For the moment of inertia of a thick walled cylindrical tube with open ends, the moment does not depend on the width. It's directly proportional to the average radius and the mass. Lighter, smaller tires have less momentum, and so transfer more power from axle to road...
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    Graduate The acceleration of mass using light

    Slightly, very small pressures. The force exerted by photons from the Sun on the Earth is less than 141 pounds over our entire cross-sectional area. http://en.wikipedia.org/wiki/Radiation_pressure
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    I Need Help Selecting a Good Text Book to Learn the Basics

    My favorite is "University Physics" by Young and Freedman.