
Design and Applied Technology (Secondary 4-6)
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(d) Electricity and Modern World
Electricity emerged in the 1870’s. It has completely modernized the world and enhanced
human beings’ living quality. With electricity, various electrical appliances, such as air-
conditioners, computers, televisions and cookers, were invented.
(e) Computer and Information
John Bardeen and Walter Brattain invented transistors in 1947. Transistors replaced electrical
vacuum tubes, which were expensive in monetary terms and bulky in volume. Transistors
were subsequently replaced by integrated circuits (IC’s), which were invented in 1971 and
provided more complicated and multiple functions. The development of computers thanks to
the introduction of IC’s.
Computer’s capabilities play a key role in technology development of the recent decades.
Various fields, including but not limited to communication, medicine, entertainment,
scientific research, transportation, rely on computers. Especially, the Internet has speeded up
and enlarged the extent of information spread, and announced the beginning of the
information era.
2.1.2 Design movement
People from different cultures have different abilities to make tools and to communicate. The
evolution in art, design and technology has great impact on civilization. Many individuals,
civilizations and cultures have contributed their own value to the collective knowledge, skills
and understanding through the centuries.
Design movement refers to a common or similar design style that is shared among some
artists or designers. The period concerned may last for months, years or decades. While style
or aesthetics is only perhaps a matter of personal or even generational taste, some major
aesthetic styles do have long impact on product design and architecture since the late 1800’s.
The Chinese, Egyptians, North American Indians and Romans created their own artifacts and
environments on their own lifestyles and beliefs and by the materials and processes that they
then had. Their works dominated the art, design and technology movements in the early
centuries.
The Victorians did not ask for uniformity. Many of their key developments built the
foundation of the Industrial Revolution. For example, the art and architecture then shaped the
growth of large cities; steam and gas powered the railways and trams.
The design style of Art Nouveau is based on natural shapes. Patterns and designs of the style
are often curving, intertwined plant and animal shapes. Some examples are climbing vines
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