The human species' use of technology began with the conversion of natural resources into simple tools. The prehistorical discovery of the ability to control fire increased the available sources of food and the [[invention]] of the wheel helped humans in travelling in and controlling their environment. Recent technological developments, including the [http://en.wikipedia.org/wiki/Printing_press printing press], the telephone, and the [[Internet]], have lessened [[physical]] barriers to [[communication]] and allowed humans to interact freely on a global scale. However, not all technology has been used for [[peace]]ful [[purpose]]s; the development of weapons of ever-increasing destructive [[power]] has progressed throughout history, from clubs to nuclear weapons. | The human species' use of technology began with the conversion of natural resources into simple tools. The prehistorical discovery of the ability to control fire increased the available sources of food and the [[invention]] of the wheel helped humans in travelling in and controlling their environment. Recent technological developments, including the [http://en.wikipedia.org/wiki/Printing_press printing press], the telephone, and the [[Internet]], have lessened [[physical]] barriers to [[communication]] and allowed humans to interact freely on a global scale. However, not all technology has been used for [[peace]]ful [[purpose]]s; the development of weapons of ever-increasing destructive [[power]] has progressed throughout history, from clubs to nuclear weapons. |