A criticism is that technology of video games is that they makes people more sedentary and violent -- but games such as "Dance Revolution" attempt to answer such criticism by providing nonviolent and physically active games.

Invention 2: The birth of the Internet

The challenge of getting a message quickly from point a to point B. has motivated the creation of foot messengers, the Pony Express, the U.S. Postal Service, Morse Code, the telegraph and telephone -- and the Internet. The Internet as an idea was first born in 1958 when researchers at the Bell Labs invented a modem that could convert digital signals to electrical analog signals and back, enabling computers to communicate with one another ("History of the Internet," Computing Science Chronology, 2005).

The beginnings of the revolution in communication technology between computers would later enable ordinary individuals to communicate with people they had never met far away,...
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