Restart the Core

My idea is how to restart the core on mars so it will start spinning again.We need to restart the core on Mars because we will need the magnetosphere like we have on Earth there to protect us from solar flares. We can use thermo-nuclear bombs to restart the core. This will hopefully restart the core and that will cause a chain reaction the speed up the colonization of Mars. We will use 2 bombs one on each pole which will each be 50 kilotons.