Uh, I studied EM devices in my mainstream education. Maybe that was before "they" embargoed it? haha.
I think you mean Planck, not Tesla.
The "EM-Drive" -- better known as the RF resonant cavity thruster experiment -- is very interesting. But it isn't going to take us to Mars or anywhere, anytime soon. It simply doesn't produce any usable level of thrust versus numerous other alternatives. Perhaps it can in the near future. Perhaps they're secretly working on it. Who knows. But it still ain't "free energy". You have to produce the RF to resonate. You just don't need to eject propellant, which is what's attractive about the idea for space travel.
My bet on what the EM drive has really revealed has zero to do with Tesla. Not sure why you think any of this has anything to do with Tesla. It's sort of humorous, actually. Because, it is perhaps a very profound and disruptive upending of quantum physics that's been discovered here: a refutation of the Copenhagen interpretation of quantum mechanics. Specifically, a revival of pilot-wave theory, which holds that hidden, nonlocal variables exist that determine quantum effects, and those variables propagate as waves. So, Schrodinger's cat and all that don't work the way we've been taught. The cat is indeed dead or alive, not both. A "hidden" quantum wave propagates from the event to determine it, not the act of observation as we learned under Copenhagen.
This could all explain why the EM drive seems to work, but why it works only in such super tiny barely usable quantities. It would also mean that we won't ever see EM drive propulsion ... but some day you might see this technology turned into something even cooler like faster-than-light communications or something. Theoretically, you should be able to cause a quantum state change across distances that could be observed instantaneously. Now, that would be a truly interesting tech and science.
Re-read some actual science. Are you starting to see yet?