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'.

Early contact lenses were hard lenses made of a material that had no ability to transmit oxygen or carbon dioxide, which made it unhealthy for the cornea of the wearer over the long term.

Companies recognize that the type of clothing their employees wear affects the image they're promoting to their customers or clients. For example, employees of a surf shop may be outfitted in tank-tops and shorts all year round, while the law firm next door requires strictly suits and ties.

Keyless entry is a security device available on some new cars or as an add-on accessory on older models. It allows you to open the doors of your car from a remote location with the press of a button.