Imagine if you could build a tunnel that sliced through the center of the earth. Suddenly you could travel to opposite end of the planet with ease. Simply hop into the tunnel and let gravity whisk you towards your destination. Initially, gravity’s pill would accelerate you down towards the earth’s center but as you pass through the core, gravity will start to work against you.
Here’s how long it would take you to reach the other side. First you must create a vacuum by removing all air out of the tunnel, otherwise friction in the form of air resistance will slow you down to much and air pressure near the centre would crush you to death Next you’ll need to wear a spacesuit which will protect you against the intense heat of the core and supply you oxygen to breathe. After removing the air and suiting up you could freefall through the vacuum tunnel assuming the force of the gravity is constant throughout the trip. It would take about 19 minutes to reach earth’s center. You would be blazing along at 25000mph or 32 times the speed of sound but you would feel completely weightless just like an astronaut in space.
As you passed through the core, you would slow down but your momentum would propel you upward against gravity by the time you have reached the other end you would back to a walking pace total trip will take about 38 minutes that certainly beats a 40-hour plane ride from Santiago Chile to Xian China.
so which way you would prefer to travel. answer me in the comment section below.
