Posted on 09/12/2020 1:33:14 PM PDT by DUMBGRUNT
More than 20 years after its introduction, the EmDrive is still being tested in labs around the world, including DARPA. But the controversial thruster's do-or-die moment is quickly approaching.
“We can also get an unmanned probe to Proxima Centauri in a (long) human lifetime, 90 years.”
The original EmDrive, built by Roger Shawyer in 1998, is a sealed copper tube (pictured above) wider at one end than the other. According to Shawyer, if you bounce microwaves around inside the tube, they exert more force in one direction than the other, creating a net thrust without the need for any propellant.
Critics believe that the experimental results must be wrong while McCulloch believes we just don't understand the physics yet.
This is why most critics don't take the EmDrive seriously, and some mock it with comments about ‘magic space unicorns’ providing thrust, or ‘EmDrive, more like BS Drive.’
(Excerpt) Read more at popularmechanics.com ...
I prefer levitation.
“Its a microwave rocket”
Pack the cylinder with popcorn and they
might get there in less than a decade; plus they would have a trail to follow back.
Read you’re history. They did not fathom that it was a pressure differential causing flight. They thought the angle of the wing was more important. They got lucky. Google around about the advancement of the wing and flight theory.
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