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I saw this video and trying to understand the phenomenon.

But as you can see the electro-magnetical device lifts the non-polar material.(1:35~2:00)

How can it be possible?

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We're not really told or shown anything in this video - one can't really see what the so called "sponge" is. Certainly, the kinds of levitation and even destruction of metal objects seen in the video is well plausible with modest equipment using known physics: i.e. Maxwell's equations here. The mainstream interpretation of the "zero point energy" the energy of the ground state of the quantum matter and energy fields that fill spacetime. As far as mainstream science knows, there is no means of tapping it and I saw nothing in the video that explained how such tapping would be done ... –  WetSavannaAnimal aka Rod Vance Aug 26 '13 at 7:38
    
... indeed mainstream physics believes that there are reasons why you wouldn't want to tap this energy even if you could: a decay of a so-called "false vacuum state" to a lower true vacuum state would utterly destroy the universe as we know it. Richard Feynman famously said that the zero point energy in the space in a teacup could boil the Earth's oceans if tapped, but he was almost surely referring to the nontrivial theoretical problem of "renormalization" of QFT field problems (zero point energy is "infinite" before renormalization) rather than any serious suggestion of tapping that energy.. –  WetSavannaAnimal aka Rod Vance Aug 26 '13 at 7:45

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