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kmarinas86
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http://en.wikipedia.org/wiki/Binding_energy#Mass_Defect
But the opposite is true for galaxies! Quarks too! Their mass appears to be larger than their constituents as well...
Wikipedia:Binding Energy said:Because a bound system is at a lower energy level than its unbound constituents, its mass must be less than the total mass of its unbound constituents.
But the opposite is true for galaxies! Quarks too! Their mass appears to be larger than their constituents as well...