Making new Technolgy but more sacrifice

[SpecOpsSniper]

Ive' been thinking a lot for the future technolgy.Is it possible to make floating cars?..

So ones planet core holds a a gravity or etc make one if we could suck/take the molten metal we have more metals.But if we take the one from the middile
maybe we could make our own gravity.Don't call me anything cuz' i don't know stuff that NASA knows.If it's possible we can take some from a Dying and Un-Habitable and Useless planet then let the other companies do it..
The core could be breached by ahh so thats the problem