Page 9 - Modern Robotics Building Versatile Macines

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PREFACE

he Milestones in Science and Discovery set is based on a simple
T but powerful idea—that science and technology are not sepa-
rate from people’s daily lives. Rather, they are part of seeking to
understand and reshape the world, an activity that virtually defines
being human.
More than a million years ago, the ancestors of modern humans
began to shape stones into tools that helped them compete with the
specialized predators around them. Starting about 35,000 years
ago, the modern type of human, Homo sapiens, also created elabo-
rate cave paintings and finely crafted art objects, showing that tech-
nology had been joined with imagination and language to compose
a new and vibrant world of culture. Humans were not only shaping
their world but representing it in art and thinking about its nature
and meaning.
Technology is a basic part of that culture. The mythologies of
many peoples include a trickster figure, who upsets the settled
order of things and brings forth new creative and destructive pos-
sibilities. In many myths, for instance, a trickster such as the Native
Americans’ Coyote or Raven steals fire from the gods and gives it
to human beings. All technology, whether it harnesses fire, electric-
ity, or the energy locked in the heart of atoms or genes, partakes of
the double-edged gift of the trickster, providing power to both hurt
and heal.
An inventor of technology is often inspired by the discoveries of
scientists. Science as we know it today is younger than technology,
dating back about 500 years to a period called the Renaissance.
During the Renaissance, artists and thinkers began to explore
nature systematically, and the first modern scientists, such as
Leonardo da Vinci (1452–1519) and Galileo Galilei (1564–1642),

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