In hypothesis , yes . In practice , your journey through the planet might be halter by the satellite ’s molten centre .
There ’s also the topic of finding a spot for all you ’re digging through to make your tunnel . Let ’s not rule out the opening of mole citizenry , dinosaur and graboids last down there , either . Keep in mind , too , that you would need to build some kind of DIY digging contraption . Even the biggest and best digging operation in the populace have n’t go against the Earth ’s crust yet and to even get close , they had to start up jab from the sea trading floor . I ’m move to guess you ’re start from your backyard , which signify you do n’t have a chance .
But we can stargaze , ca n’t we ? And who am I to step on your dream ?
permit ’s have a little fun and job , then , about what physicists say a trip through the planet might be like . To make your journeying a trivial loose , we ’ll assume certain ideal condition :
It ’s a lot of concession to make ( and I ’m certain we could even think of a few more ) , and we ’re now on an Earth very much unlike the one we live and love . Whatever . It ’s a diminished price to pay for the thrill ride you ’re about to take .
So go on . Step into the hole . Or maybe dive in headfirst ; you ’ll have a near perspective . As you descend through your burrow , gravity pulls you down towards the essence , and you gain focal ratio . As you get tightlipped to the center , you ’re close to that balance of mass we strike . somberness does n’t extract on you as much and while you ’ll still gain speed , you wo n’t do it as fast . Once you hit the center of the Earth , you ’ll be in zero gravitational attraction , but go away at maximal speed ( some 18,000 miles per hour ) , you wo n’t even notice .
As you pass off the center , gravity starts to lick against you , pull you back towards the core . You ’ll jump to slow down at exactly the opposite pace that you accelerate during the first half of the trip . When you reach the paired end of the tunnel ( the stumble would take you , appropriately , 42 minutes ) , you ’ll descend to a drained stop for an twinkling just as you pop out of the exit hole . Unless some considerate Taiwanese person materialize to be near the hole and grabs you , all of Earth ’s mint will displume you back towards the essence and you ’ll go back down ( or up , as it were ) the yap again .
If no one catches you at either end of the burrow , you ’ll spend the rest of your life vibrate back and forth , the human yo - yo at the heart of the Earth .
