why dont we go through solid objects

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Offline i am bored

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why dont we go through solid objects
« on: 14/01/2008 03:21:52 »
since solid objects are mostly empty space then why dont we go through them
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Offline Soul Surfer

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why dont we go through solid objects
« Reply #1 on: 14/01/2008 09:06:25 »
The electromagnetic forces between the atoms that make the materials solid by locking their atoms in reasonably fixed positions (the atoms do vibrate slightly about their mean positions) bridge the gaps between the atoms and create repulsive forces that prevent other solid materials from passing through them.
« Last Edit: 15/01/2008 14:11:16 by Soul Surfer »
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why dont we go through solid objects
« Reply #2 on: 15/01/2008 11:19:38 »
The space between the nuclei of atoms may be 'empty'  but it is full of very strong Electric Fields! Anything which is not effected by those fields and which has a small enough wavelength (i.e. an electromagnetic wave of short wavelength or a particle with a small enough de Broglie wavelength) to avoid gross diffraction effects  will go through that space. Hence, X rays and gamma rays tend to go through solids and so do fast Neutrons.  High energy em waves only interact with the inner electrons and the neutrons mostly ignore everything but the nucleus itself.
« Last Edit: 15/01/2008 11:23:30 by sophiecentaur »