GEO 1111 Lecture Notes - Lecture 4: World Egg, Fred Hoyle, Silicon-Burning Process

• School: University of Ottawa
• Department: Geology
• Course: GEO 1111
• Professor: Donald Cummings

Document Summary

: possibilty the universe is not infinite, or there are dark clouds. George lemaitre thought of the idea of the cosmic egg exploding and expanding ever since its beginning. Can be supported by the big bang theory. Hubble constant: the unit of measurement used to describe the expansion of the universe. The cosmos has been getting bigger since the big bang kick-started the growth about 13. 82 billion years ago. The universe, in fact, is getting faster in its acceleration as it gets bigger. Within two years, however, edwin hubble, an american astronomer, provided evidence that the universe was indeed expanding. From his telescope in california, he observed a shift toward the red spectra (red shift) of the light from stars in distant galaxies (red shift is a type of doppler shift). The simplest explanation for this shift was that distant galaxies were speeding away from our galaxy (the.