Everyone knows that the universe is extremely old and extremely
large. But how did scientists determine just how old and how large?
How do astronomers know that there are upwards of 100 billion
galaxies in the universe if the nearest one is over 40,000
light-years away? How do we know what the stars are made of? The
answer is that our current knowledge of the universe has arisen
from the work and ideas of scientists and philosophers over
hundreds of years. While it's only been during the last several
decades that scientists have had the technology and theories to
really understand how the universe works, humans have thought about
such issues for millennia. And the scientists who today are
attempting to understand the most complex issues of the universe
build upon the work and thought of the thinkers of the last
hundreds of years. The Cosmos: A Historical Perspective provides an
accessible introduction to the many ways humans have conceived of
the universe throughout history and what ideas have led to our
current understanding of the cosmos. The book examines: BLThe
Scientific Revolution and the new ideas of the Earth's place in the
cosmos BLThe importance of nineteenth-century physics and chemistry
in determining the compositions of stars BLEinstein's Theory of
Relativity and how it altered how scientists thought about gravity
BLNew, cutting-edge science that may alter, yet again, our
conceptions of the cosmos, such as the inflationary universe and
the possibility of "dark energy." BLJargon and mathematics is kept
to a minimum, and the volume includes an annotated bibliography and
a timeline. The Cosmos is an ideal introduction for students
studying space science and the history andnature of the scientific
understanding of the universe.
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