Ron R
I survived a lathey foreman
Here is a B&B thread that caught my attention years ago, it is interesting and not even over my head to learn what these fellows where concerned years before myself.
pH of soaps and creams
The outer layer of hair, the cuticle, is a single cell thick layer of hair cells that overlay each other like roof tiles. This layer is responsible for most of a hair's strength. Healthy hair is as strong as copper wire of the same thickness. Hair can stretch about 20% of its length when...
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