[Timber Rattler]

Possibly a 100 mile long horizontal rail gun could do the job.

And this is feasible for shooting stuff into orbit, how?

[Reeses]

And this is feasible for shooting stuff into orbit, how?

Because 1) the Earth curves away, and 2) to orbit, an object needs to be moving fairly horizontal to the Earth's surface. Sending an unpowered object mostly straight up will result in it coming right back down.