Gizmodo: Scientists can't agree how long it聽would take to fall through the earth?聽
For years, a classic question posed to college physics students is how long it would take to fall to the center of the Earth. Given that we can smash tiny particles into each other at聽谤别补濒濒测听high speeds using magnets, you'd think this would be an easy problem to solve. But apparently not.听Read .听
