General Knowledge and Education

We've covered school myths and geography in this series. Now let's turn the lens inward because the human body is genuinely one of the most fascinating and weird things in existence. Your stomach gets a new lining roughly every 4 days. The acid in your stomach is strong enough to dissolve metal slowly. The only reason it doesn't dissolve itself is because it constantly regenerates its protective lining. If it didn't, you'd essentially digest yourself from the inside. Here's another one. Your bones are not static. They are constantly being broken down and rebuilt in a process called remodeling. By the time you're in your mid-thirties your entire skeleton has been replaced several times over. The human eye can detect around 10 million different colors. But interestingly we have no memory for color the way we have memory for faces or music. If you saw a specific shade of blue today you pro…