Zigzag Side On Bobby Pins
A bobby pin has both a wavy and a straight side. A lot of people use it with the zigzag pattern facing toward the scalp. It does look cooler like that. The wavy side also helps secure the pin, keeping it in place the entire day. This way, a bobby pin can better hold onto a clump of hair.
Zigzag Side On Bobby Pins
ADVERTISEMENT
Cable Cord Cylinders
A cable cord comes with a cylinder-like lump at its end because the lump contains magnetic iron oxide. Known as a ferrite core or choke, the lump helps avoid high-frequency electromagnetic interference. These interruptions include weird noises that interrupt a call if the phone gets a bit too near a speaker.
Cable Cord Cylinders
