Uniting your pool with the natural landscape and features of your home takes careful planning. In addition to building traditional pools, many designers like to create what's known as a 'negative edge effect'.

Fluoride is a compound of the chemical element fluorine (FLOOR-een) that's found in water, soil, air, and most foods. Fluoride is easily absorbed into your tooth enamel, making adult teeth more resistant to tooth decay.

A 'situation wanted' ad is similar to a classified ad, but in reverse. It's placed by the person seeking a specific job, and directed to potential employers.

The purpose of an engine is to convert a fuel mixture into motion. In a piston engine-- the kind you find in American cars and most foreign cars-- four successive actions have to take place: intake, compression, ignition and exhaust.