I read about this the other day and thought it was interesting.
https://www.cnbc.com/2021/11/09/spin...ve-rocket.html
It essentially puts a payload in an enormous vertical centrifuge, spins it to hypersonic speeds, and then throws it up into space. I'm curious how something like a satellite could hold up to those forces, and I'd think that's a hard sell. But if you want to move a bunch of steel or uranium into orbit, this seems like a good way to do it.
You really want to be sure this baby releases on the vertical part of the spin cycle, though, or you're going to rip a big swath through Albuquerque.