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can be carving on engravings in rocks or caves
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use of the large stones as an artistic medium
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refer to sketches or paintings that usually depict nature early people's way of life
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- prehistoric is dominated by parietal art, such as cave painting and cave petroglyphs
- sculpture is a form of portable or mobiliary art
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a period of the human activity between the use of the first stone tools
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the main media for writing documents in China
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a hard permanent outgrowth, often curved and pointed, found in pairs on the heads of cattle, sheep, goats, giraffes, etc. and consisting of a core of bone encased in keratinized skin
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a printed publication (usually issued daily or weekly) consisting of folded unstapled sheets and containing news, feature articles, advertisements, and correspondence
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period of history that encompassses the changes in economic and social organization that began around 1760 in Great Britain and later in the other countries
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it was a simple device that used boiling water to create mechanical motion to be utilized in useful work
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- it is a mechanized loom and was one of the key developments in the industrialization of weaving
- designed by Edmund Catright
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a system for transmitting voices over a distance using wire or radio, by converting acoustic vibrations to electrical signals
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a period in a human history characterized by the shift from traditional industry that the Industrial Revolution brought through industrialization
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- invention of the transistor ushered in the electronic age
- people harnessed the power of transistor that led to the transistor communication become more efficient
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an electronic system of transmitting transient images of fixed or moving objects together with sound over a wire or through space by apparatus that converts light and sound into electrical waves and reconverts them into visible light rays and audible sound
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a system for transmitting voices over a distance using wire or radio, by converting acoustic vibrations to electrical signals
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an electronic device for processing information and performing calculations; follows a program to perform sequences of mathematical and logical operations
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a computer used primarily by large organizations for critical applications
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a computer that is portable and suitable for use while traveling
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is a mobile device that combines cellular and mobile computing functions into one unit
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is a Web browser available for the Macintosh and Windows operating systems as well as the iPhone, iPod Touch, and iPad
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defined as an online social networking website where people can create profiles, share information such as photos and quotes about themselves, and respond or link to the information posted by others
