Noise canceling...sounds good....But no mater what those guys know they are still just Spam in a can" is a metaphor evoking the image of the astronauts as nothing but meat in a metal enclosure. Gotta go 25x faster than this guy just to fall with the curvature of the earth..... https://m.youtube.com/watch?v=zgR-KadhgMI Orbiting is falling with the curvature of the planet.. http://ataridogdaze.com/weightless/outer-space.shtml#:~:text=The%20answer%20is%20that%20it%20is%20in%20orbit,Newton%20understood%20this%20principle%20in%20the%2017th%20century.