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.
Not many would have predicted that an ear piercing would become the most talked about âcureâ for migraine, but in recent months thatâs exactly what has happened. Stories of people getting a âdaithâ piercing in a bid to relieve them of migraine have gone viral. A quick internet search will reveal numerous blog posts and news articles on the subject. A daith piercing is a piercing through the earâs innermost cartilage fold. The theory of daith piercings helping to alleviate migraine is based on the idea of targeting a specific pressure point and replicating the principle of acupuncture.