We go through our daily lives and take many things for granted not really knowing, questioning or understanding the purpose or functionality of many things that we, in fact, use every single day. While there are many who do not bother but there are others who really wonder at their existence. Here are those 10 things that are so common but their uses unknown.
1. Extra Eyelets On Sneakers
These are nothing but an extra hole for the shoelaces which are given to actually enable us to tie our shoelaces in a better way to avoid getting blisters. This was given to actually create heel lock which secures the ankle in one place thereby preventing the friction and further blistering.
2. The Cylindrical Structure Attached To A Laptop Cable
Known as a Ferrite bead, it contains actually a chunk of material which is of magnetic nature. The cylindrical casing acts as a filter and also an insulator to reduce noises of high-frequency. It also helps in preventing the cable from acting as the receiver or transmitter of radio waves as long wires can also work as an antenna.