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Fingernails have several parts and consist largely of keratin. Visit HowStuffWorks to learn all about fingernails.

Hammers come in a different varieties and head sizes. Learn about the most common - claw hammers - and many others on this page.

We hear about the ozone layer all the time. But, what is the ozone layer and what are the ozone layer's components?

Formica is a surface material commonly used in home improvement projects. Learn more about formica at HowStuffWorks.

There are many home remedies for bites and stings that can relieve some of the pain. Learn about home remedies for bites and stings.

Industrial resins are found in everything from plastic bags to water bottles. Learn about industrial resins and their impact on the environment.

Taoist philosophy attempts to illuminate the interdependency of all things, including life, art, and language. Learn about taoist philosophy.

Solar vehicle ventilators are great automotive gadgets. Learn more about solar vehicle ventilators at HowStuffWorks.

How does piston shape affect combustion? Learn about the effects that the shape of an engine's pistons can have on combustion.

A countdown of the 10 most important supreme court cases for journalists. Read about the strides, advancements, and the struggles along the way.

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