Zigzag Side On Bobby Pins
Bobby pins have a wavy side and a straight side. The zigzag pattern is often used facing towards the scalp. It does look a little cooler like that to be fair. Actually, the pin is more secure because of the wavy side, which keeps the pin in place the whole day. This way makes it easier to hold onto a clump of hair.
Zigzag Side On Bobby Pins
Cable Cord Cylinders
Have you ever wondered why the end of a cable cord has a cylinder-like lump? These lumps are actually known as chokes or ferrite cores, and there is magnetic iron oxide in them, which helps avoid high-frequency electromagnetic interference. When you are on a call and your phone gets too close to a speaker, the call might be interrupted by weird noses. The big cylinders on cable cords prevent this type of interruptions.
Cable Cord Cylinders
