No, you can't really "dig to China." But what if you could ride the so-called gravity train through the center of the Earth to the opposite side? How long would it take? TRANSCRIPT: https://quickanddirtytips.com/education/science/fall-through-earth | Check out all the Quick and Dirty Tips shows: quickanddirtytips.com/podcasts JOIN THE CONVERSATION: Facebook: https://www.facebook.com/qdteinstein | Twitter: https://twitter.com/qdteinstein