Название Astronomy: Understanding the Universe
Автор: Sherman Hollar
Издательство: Rosen Education Service
Год : 2011
ISBN: 1615305203
Формат: PDF
Страниц: 96
Размер: 50 mb
Язык: Английский
Fathoming the boundlessness of space and the universe, we are immediately filled with curiosity about our own origins and wonder about the objects, life forms, and matter that populate the cosmos. Through the observations and work of astronomers over time, we have slowly been able to reduce the number of unknowns and develop explanations or theories for some of the celestial objects and phenomena we see. This space-traveling survey recounts some of the major discovery milestones in the field of astronomy and examines ... Читать дальше »

 
                     

Название:  The Big Bang
Автор: Mike Perricone, Mike Perricone
Год: 2009
Издательство: Chelsea House Publications
Страниц: 119
Формат: PDF
Размер: 10 Мб
Язык: Английский

Less than a hundred years ago, science seriously debated whether a cosmic array of stars and galaxies extended beyond the Milky Way. Discoveries and theories have revealed a universe of increasing enormity, complexity, and mystery. Beginning with an overview of the scientific method, "The Big Bang" follows the pioneering observations of Edwin Hubble and the early insights in cosmological theory by Alexander Friedmann and Father Georges Lemaitre. The dramatic discoveries of the cosmic microwave background and the acceleratin ... Читать дальше »