Quantum vacuum (Introduction)
A virtual vacuum exists in this universe, not a true vacuum:-http://www.newscientist.com/article/mg21328526.400-harnessing-the-quantum-power-of-empty-space.html?page=1
A virtual vacuum exists in this universe, not a true vacuum:-http://www.newscientist.com/article/mg21328526.400-harnessing-the-quantum-power-of-empty-space.html?page=1