You’ve used notebook paper thousands of times. But have you ever asked yourself why they look the way that they do? And how come when you get to college, do you have more space on the page? Well, the answer to the second question is obvious- colleges like to torture. But the answer to the first question is a little more fascinating and involves traveling back in time.
Years ago, when rats were frequently found in homes, they would chew on paper. Thanks to the margins on paper, a rat could nibble around the edges without destroying somebody’s work and taking a bite of important information. So back then, kids couldn’t use the excuse, “a rat ate my homework.” While this feature isn’t so necessary anymore, it’s a little bit of history that has been maintained. Plus, the edges of our papers often get soiled, so it’s a good thing that they’re there.
Loops on Grocery Carts
Have you ever stopped and taken a moment to examine the design of a grocery cart? In the hustle and bustle world we live in, you probably haven't. Well, that's why we're here today; to teach you new things about everyday items! Take a look at the picture. Do you see those metal loops that jut out of the fold-out section of carts? This protects the products in your cart.
You can use the loops to hang plastic bags that are carrying breakable items like eggs and soft items like bread that you don’t want to get squashed by heavier items. The designer of the grocery cart was clearly well beyond their years. In fact, if you ever check out people who bag your groceries and put them in your cart, they themselves might not even be aware of this interesting function. Next time you can teach them something new and become the most likable person in the whole store.
Golf Ball Dimples
If you've ever gotten up close and personal with a golf ball, then you've noticed that its exterior is covered in dozens of little dimples. Golf balls weren't always this way. What happened is that experienced golfers started to notice that, over time, the older balls that had bumps and nicks would travel further.
These imperfections help create turbulence in the air around the ball, which then helps to reduce drag. Eventually, manufacturers began to design golf balls with these dimples already intact so that the balls get more lift and reach greater distances.
Holes in Pot Handle
Unless you're a chef, you may not know the reason why pots and pans have holes at the end of the handle. Well, there are two logical reasons behind the existence of the hole. First of all, the hole makes it easy to hang the pot up on hooks when it's drying out or not being used. You may even have used pots that way plenty of times in your kitchen. But, the other trick of the trade is perhaps something that you haven't tried to do, and you're going to love it.
It's time to stop dirtying up the counter with the saucy stirring spoon. Next time you're whipping up a red curry in your pot, slip the utensil into the pot and let it rest there while your meal is cooking. You should especially try out this slick move the next time you make a meal and want to impress people with your talented Top Chef skills. Your performance is guaranteed to get many 'oohs' and 'aahs.'
Cylinder Toward End of Cable Cord
There are many different reasons to use a cable or power cord of some kind, so there's a good chance you've used one before. Well, if you have, you may have noticed a big cylinder-shaped lump toward the end of the cord. There is actually a name for this, other than a cylinder-shaped lump. These things are called chokes or ferrite cores.
It's simply magnetic iron oxide that helps to prevent any high-frequency electromagnetic interference. You know when your cell phone gets too close to a speaker, and you get that weird static noise interrupting your call? That's an example of this kind of interference. So, cable cords come with big cylinders to prevent that from happening.