> No, the EmDrive does not work That is simply inaccurate to say. Just because they have not ruled out all of the errors in testing doesn't mean it does not wo

> No, the EmDrive does not work That is simply inaccurate to say. Just because they have not ruled out all of the errors in testing doesn't mean it does not work, that's premature. You're suggesting that you know with absolute certainty that it's an error in testing and not some new physics or undocumented effect (like the casmir effect). I find that presumptuous, close-minded and frankly, ignorant. Is it an error in testing? Maybe, probably. However, I would never say that I know something "for certainty" when I don't. > Because it violates conservation of momentum We don't know it does this yet. And again, it's inaccurate to claim it does because we don't know if it does. As I said in another comment, for all we know, the string theorists have it right and this effect could be pulling/utilizing energy from some higher dimension that we don't even know exists yet. There are any number reasonable (not physics-breaking, albeit far fetched) ways this could work. And one of them is unknown physics. To pretend we know all there is about physics is ignorant and close-minded. We're nowhere near close to understanding physics in its entirety. There are some huge problems we've yet to solve. When we do, they will most certainly give us more insight into our universe than any of the other discoveries that have come before (like reconciling quantum mechanics with relativity).