How a Car Battery Starts a Car The first purpose of an auto battery is to provide power for starting your vehicle. It also acts as a surge protector for the car's computer and prov...

All About Sewing Machines Prior to the invention of sewing machines, clothes and other materials were sewn by hand. Hand sewing is an art form that was practiced over 20,000 years...

Wear Minimization Solution The best solution to the problem of movement causing stress was very simple. If component A is forced against component B thus putting both components un...

The chemistry of cosmetics Cosmetics are not a modern invention. Humans have used various substances to alter their appearance or accentuate their features for at least 10,000 year...

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