Why is there a Hole at the Pole?

People often ask "Why must the Earth be hollow and why must there be a hole at each pole?"   This is a fair question, one which we can answer easily enough ... yes, using science. To begin, let's ask ourselves — "What do we observe with most spinning systems in nature ... hurricanes, tornadoes, whirlpools or water vortices, etc.?" Well, one common feature they all share is that they are have an inner empty space near the center of rotation. Take this computer simulation of the new star system of HL Tau and the forming protoplanet HL Tau B. Notice anything? That's right, there is an empty space near the center or at the axis of rotation.


Why is this? I mean, why doesn't matter want to stick near the center of the axis of rotation? Have you ever sat in the middle of a merry-go-round and tried to stay in the center while someone spins it faster and faster? No? Well, watch this video and you'll wonder no more. It's next to impossible to stay near the center. The same holds true for a spinning system of matter which is coalescing to form a new planet — the matter at the center will fly out outward due to centrifugal acceleration.

But that's not the only force acting upon the spinning system — gravity is also acting to pull the matter back together. Let's use another example. What happens when you hold a weight on a string and spin your body around? The weight will fly out a certain distance until it reaches a point of equilibrium where gravity and the centrifugal force counteract and balance each other until the net force is zero. Now spin faster. The weight will fly out even further until it stops at a new equilibrium point. This is perfectly illustrated by the planets Jupiter and Saturn. How many hours does it take Jupiter and Saturn each to complete one rotational period? If your answer was more than 24 hours, you'd be wrong — Saturn has a day of 10.5 hours and Jupiter's day is even shorter at 9.8 hours. Most people assume that Jupiter and Saturn are bigger because they are more massive. I posit that they are bigger because the matter that coalesced to form them had a faster rate of rotation and so their radius was necessarily greater than their slower spinning counterparts — just like the spinning weight on the string example.


Now we've shown, using simple physics and logic, that spinning systems are hollow and the radius of planets are determined by their rate of rotation during formation so that the centrifugal acceleration and gravitational attraction balance out. At this point of equilibrium the heaviest elements coalesce and the lighter elements (such as atmosphere and water) form on either side of this center point, creating an atmosphere and oceans on the inner and outer surfaces of the planet. As you near the poles, the crust thins until eventually you have an opening or a hole at both northern and southern extremities. The resulting configuration is a hollow planet with a shell or crust that can sustain life on the inner and outer surfaces.