30 Everyday Things With ‘Hidden’ Features You Probably Didn’t Know About

Head bumpers!

I have my doubts. Having knitted and crocheted a couple of caps I suspect it is merely a decorative way of finishing off the loose ends at the top.

They are still in use, have a look at the french navy sailors hat

I find this hard to believe.

Also so you can remove your hat whilst wearing gloves..

Wow!

Hmm. Not sure this is the only explanation. Can see this maybe working with bound pages (though the leather book covers would be at least as attractive as the paper within), but not so much with single sheets. Rats don't just chew the paper; they use their claws to "bundle" it so they can take it with them. Former owner of pet rats. Former waitress. Would come home from work exhausted, let the rats out to play, and crash. Eventually found over $300 in tip money (and part of my boyfriend's thesis) in the corner of my closet. Yup, chewed on the edges, but also clawed from the center out.

Actually margins exist in order to make reading easier first of all - you find them clear back into earliest written work - and secondly to allow for binding pages together. There is some sense to the idea of having a margin allows for a wear edge which will keep your work from being damaged, but the rat thing is pretty much myth.

Marginally interesting, it is.

Interesting! I’ve always taken the “rules” for granted, and just purchased whatever ruled-notebooks were appropriate for whichever level my children were at. I always thought it was because of the vertical spacing between each line.

Plus a fun fact: door knobs do not exist is many parts of the world ;)

That's not why they are made from brass, it's just a nice by-product of the use of a metal that was easy and inexpensive (compared to ceramics or cut glass) and didn't rust when exposed to the elements.

It was discovered only a few years back in India that if you store water in a brass vessel for 2-3 days in kills the bacteria. But brass is heavier and more expensive than plastic and has largely supplanted it, making people sicker.

Wikipedia says unvarnished brass disinfects itself in anout 8 hours.

Additionally, in corrosive environments they are better than steel.

Half-belts; forged in war

Before all of the elaborate pleating in kilts, tartans were wrapped around loins and thrown over the shoulder, to be used as blankets at night. Naked warriors snuggled together to share body heat.

I totally need a coat blanket

Smart!

Interesting. Thanks for the info.

Good to know.

That was worded incorrectly. You cannot use your screwdriver as a wrench. You can use a wrench on your screwdriver to apply more torque.

You can also use the boxed end of one wrench on the open end of another to increase leverage on a stubborn bolt or nut.

Never thought about this. Not a bad tip!

I've been doing it wrong since, well, always!

I’ve been buying clothes for a very long time and I have not gotten that little piece of fabric. I’ve gotten many buttons though.

I never hat that piece of Fabric in one of these bags.

I haven't seen this since the 60s-70s. Spare buttons are usually sewn into a garment.

It's also great for colour matching accessories or buying thread to mend it without having to take the item with you.

Will remember that one.

In some countries, they purposely design in different edges so blind people can tell which coin is what.

These days they add them for blind peoole. All the Euro coins have different ridges so blind people can tell them apart more easily.