Machinists/engineers/vehicle enthusiasts

https://m.youtube.com/watch?v=4Ca6x4QbpoM

I've been working on mills, lathes and CNC machines for just a couple years, the enjoyment of manufacturing things of metal and wood probably transfers to ownership of cars bikes and motorcycles and many of you can relate. Any type of vehicle gives me a hard on - metaphorically. So rockets are the epitome of this thrill and this video is not brand new but it is a simulation of the ONLY design which works on computer models to make the reusable orbital class rockets that human kind needs. That is awesome, the specs are mind blowing: hypersonic reentry to the atmosphere must happen butt first or the vehicle will smash against the air regardless of what it's made of.

On another note, there is a whole industry of extremely poor civilians in the middle of nowhere in Kazakhstan who ger paid to recover mangled titanium fragments of Russian rockets.

From what I've read, the gravity of the earth is exactly enough to get just a little bit of a rocket to orbit, only 2-3% of the liftoff weight. If earth were a little bit bigger it would be absolutely impossible.

So please add any information to this thread that you can. Jeff Bezos is kind of a rich asshole who has this reusable rocket that can go suborbital - but that's not that cool because governments have been doing that since the 60's. Orbital flight is where it's at, rather than just a few minutes of weightlessness.

I think this is an incredible time to be alive - like Lewis and Clark pioneering their way, on that note, I read an article today saying that it's too cold for microbes to reproduce on Mars. There have to be some intellectuals on this site who can offer some new info on these subjects. Is terraforming Mars possible? Is there any way we can live independently on our own moon? This has to spark someone's interest