Warthog Images

Large, international computer network linking tens of millions of users around the world is called the Internet. It is used daily by many individuals for the main purposes of sending and receiving electronic mail (e-mail), obtaining mountains of information on almost any subject, or to communicate with coworkers on projects. Access to the Internet is [...]

Every kind of sound is produced by vibration. The sound source may be a click of a button, an automobile horn, or a hounding wolf. These waves travel out in all directions, expanding in balloon like fashion from the source of the sound. The vibrations from the source disturb the air in such a way [...]

The Wilbur and Orville Wright did not try to imitate the flight of bird’s flight, but they built a machine for flying, this was the original flight. A flying machine is exactly what an airplane is. An airplane flies even though it is heavier than air. Supporting it on wings so shaped that the air [...]

The film on which images are made is a strip of cellulose acetate that is coated with a light-sensitive emulsion that retains images. It is generally classified by its width. Most theatrical motion pictures are photographed in 35-millimeter or 70-millimeter (wide-screen) film. Virtually all commercial production is done in 16-millimeter film. Amateur and experimental filmmakers [...]

Many of the regulatory powers of government involve some kind of policing activity. In the United States, for example, the Immigration and Naturalization Service is empowered to apprehend illegal aliens. The Customs Service can inspect anything imported into the country and may search for contraband. The Internal Revenue Service may use any means at its [...]