Comments by "Kevin Street" (@Kevin_Street) on "" video.

  1. The Orion Drive is far and away the idea most familiar to viewers of this channel, and it still has the allure of something that might someday, somehow be possible. But building that pusher plate and all those bombs would be quite a challenge. The craziest idea on the list (imo) is generating nuclear power using pulsed nuclear bombs. At least with the Orion Drive you're accelerating away from the explosions and hopefully don't have to deal with their full effects. But Project Pacer would just sit there on top of all the nuclear fire and hope the radiation and seismic effects didn't eventually destroy the facility. Btw, I love the diagram at 8:44 with the optimistically named "Safety" component that would protect the surface from any nuclear byproducts coming back up the hole. As for terraforming Mars, I think redirecting comets so they smack into the planet is the best way to go. But you'd need to do it in a way that allowed a significant portion of the volatiles to stay on the planet instead of erupting back into space again. It would come down to precisely controlling the angle of impact and maybe the orbital velocities of the comets. Definitely not something we can do today, but it may be achievable in the more distant future.
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