Planet Earth is an amazing place, to say the least. And even though we’ve been living on its surface our entire life, there are still a lot of things we don’t know about it. Many things that we do know are awe-inspiring. What’s even more interesting about some of these is the fact that they have wide-scale implications on everything around them. But why try to be so mysterious, if we can give you 10 such examples, right?
10. Planet Earth and a Cue Ball
We all know the Earth is big, there’s no denying it. But when it really comes down to it, we have a hard time coming to grips with its actual dimensions. So, in order to make things more relatable, let’s take a look at mountains. Those of us who have been fortunate enough to see or even climb Mount Everest can attest to the fact that it’s incredibly huge and incredibly humbling. But most people don’t even need to see any of the tallest mountains in the world to know that mountains are big. Now, let’s take our mental image of mountains as points of reference when we talk about the dimensions of the Earth. We know that the average diameter of the planet is of about 7,900 miles. It’s important to note here that Earth is not a perfect sphere, but rather an oblate spheroid. This means that, because it’s spinning on its axis, the diameter at the equator is bigger than the distance between the poles by about 27 miles. And beside these differences, the planet also has some bumps and dents, but they’re much smaller than 27 miles.
With this information in mind, if we were to scale the planet down to the size of an average cue ball, we would come to an incredible realization. According to the World Pool-Billiard Association (WPA) Tournament Table and Equipment Specifications, every new ball should measure 2.25 inches in diameter and only have imperfections that cannot exceed 0.005 inches. By making the proper calculations here, it turns out that the biggest “imperfection” on Earth can be 17 miles and fall within WPA standards. While Mount Everest is almost 5.5 miles tall, and the Mariana trench is 6.8 miles deep, if they were taken together, side by side, the sum is still below the 17 mile margin. The same thing applies to the difference in diameter between the poles and the equator. Each half of the planet is responsible for its 13.5 mile share out of the total 27, which again is below 17 miles. So, anyone who has ever held a brand new cue ball in their hand and is not amazed by the fact that the Earth is even smoother than that? Well, he or she seriously needs to revise their sense of wonder about the world.