The Malleability and Elasticit

A detailed Summary of The Malleability and Elasticit

As result of genetic differentiation, every single person in the world has distinct hair, but the main differences between hair types are in texture and thickness. These variations are caused by the genetic make up of the fibers that make up the hair and follicles that generate the fibers. Hair is made from keratin (protein) that is wound in a coil. The turns of the coil are held together in hydrogen bonds. By wetting the hair and applying heat, the bonds (shape) of the hair can be altered. But for how long can the bonds stay like that? What factors act on the hair to make it change back? Will a thicker hair follicle reshape more readily than a thin hair follicle? Does curly hair straighten easier than naturally straight hair curls? Do the hydrogen bonds stretch and how far? Does thicker hair have more elasticity than thin hair? It is expected that the hair will maintain it's changed shape until exposed to a form of water and a thi

nner follicle reshape easier than a thicker one, straight hairs should accept a new shape more readily than curly and a thick hair will have more elasticity than a thinner one.

There are three types of hair. Lanugo hair is solely found on a developing embryo in the fetus. Vellus hair is short, fine, unpigmented hair found mainly on the cheeks and nose. Terminal hair is hair found everywhere else on the body. The type of hair tested in the experiment was terminal hair. The specific type of terminal hair used was scalp hair. A major factor of influence on hair is race. Caucasian hair can be quite variable in its presentation. The fiber can be circular or oval in cross section and is on average thinner than Asian hair. African American hair is frequently tightly coiled, or spiral hair. The fiber is elliptical or sometimes very flat and ribbon-like. There is more rigidity to the fiber across the area of large cross section but the hair is much more p

Some common words found in the essay are:
, African American, hair follicle, hair follicles, cross section, terminal hair, Asian Caucasian, straight hair, cortex cells, hair fiber, curly hair, cross section hair, hydrogen bonds, sulfur protein, african american hair, hair follicles curly,

Approximate Word count = 642
Approximate Pages = 3 (250 words per page double spaced)

Category: Science

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