Measuring a bicycle chain's pitch can be used to identify chain wear and flag the need for a replacement chain and/or cogs and chainrings. Bicycle Chains: Length, Width, What's Best to Buy etc.
An industrial, or scaffold, piercing is made up of two holes that are connected by a single piece of jewelry (usually a long barbell). An industrial piercing is commonly made through the cartilage on the upper ear, with one hole close to the head and the other further down on the outer rim. Two or more industrials on one ear is sometimes referred to as an ear cage.
Migraines and Daith Piercings. Daith piercings are a specific type of ear piercing. The ear cartilage midline toward the front of the ear is pierced. This type of ear piercing has been around for 3,000 years, but the name for this type of piercing was probably started in the 1990âs.he ear cartilage midline toward the front of the ear is pierced. This type of ear piercing has been around for 3,000 years, but the name for this type of piercing was probably started in the 1990âs.