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So what's the difference between what NASA does, what Chinese did with Em drive and what Russians have orbiting in Yubileiny satellite? More interesting questi

by bitL 12y ago

So what's the difference between what NASA does, what Chinese did with Em drive and what Russians have orbiting in Yubileiny satellite? More interesting question: can I make one at home? I can do magnetic levitation, both pushing and pulling with high-frequency electromagnets; it would be cool if I could do this as well and having floating objects in my home 8-)

tobinfricke 12y ago
"it would be cool if I could do this as well and having floating objects in my home" The reported thrust of the device is in the tens of micronewtons. Assuming it weighs 1 kg, you would need approximately a million times more thrust for the device to levitate (i.e. counteract its own weight) at the surface of the earth.
- servowire 12y ago
  But in space a few micronewtons per Kg is pretty usable.