The average human has more than 100,000 hairs on their head, and no two are the same. Every individual hair has its own distinct properties, resulting in a wide range of hair types and prompting endless questions. Why does hair curl? Which hair type is the strongest? How can these answers lead to more curated hair care? These questions can be investigated through understanding what mechanical processes cause a curled hair fiber and exploring the differences between the mechanical properties of straight and curly hair.
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