Everyday things with hidden features we weren’t aware of

[post_page_title]Toothpaste tubes[/post_page_title]

Have you ever seen a dark square or rectangle at the end of your toothpaste tube, and wondered what that was all about? There used to be a common misconception that these were color codes to indicate whether a toothpaste was synthetic or all-natural.

Toothpaste tubes

But these are actually markers that are detected by the assembly-line machines. They tell the machine where to cut and fold the tube, so that each and every tube of toothpaste is the same size.

Recommended For You

How to build your own gaming rig

What’s better than creating something totally from scratch? It’s a fantastic feeling to think to yourself, ‘I did it.’ Even