Pen Cap Holes
At a glance, you might think there is something wrong with the pen cap because there is a hole in there. Do not worry, this was all done by design. It was installed there so air can freely flow in if it is accidentally swallowed by a kid or adult. This makes sense because there are a lot of people who like to put the pen caps in their mouths when they are thinking!
You might have thought something is wrong with the pen cap since it has a hole. Do not worry because this was done by design. The hole was installed so that air can flow in freely if the cap is accidentally swallowed by someone. This makes sense since there are many people who have the habit of putting the pen cap in their mouths when they are deep in thought!
If you look at a pen cap, the hole in it might make you think the design is faulty, but they actually added the hole for a specific reason. It lets air flow in freely. This is important because someone might accidentally swallow a pen cap. This makes sense since a lot of people put a pen cap in their mouths. It has somehow become a habit of theirs.
Pen Cap Holes
iPhone Camera Hole
If you are an iPhone owner, you might have noticed that right next to the camera lens is a tiny hole. It is one of the three microphones on the smartphone. The inclusion of three mics started with the iPhone 5. Apple wanted to make sound recording easy no matter how the user holds the phone. One mic is beside the camera lens, another is on the bottom edge, and the third one is under the speaker grill.
iPhone Camera Hole
