Evolution: A Scientific American Reader
From the Scopes “Monkey Trial” of 1925 to the court ruling against the Dover Area School Board’s proposed intelligent design curriculum in 2005, few scientific topics have engendered as much controversy—or grabbed as many headlines—as evolution. And since the debate shows no signs of abating, there is perhaps no better time to step back and ask: What is evolution? Defined as the gradual process by which something changes into a different and usually more complex and efficient form, evolution explains the formation of the universe, the nature of viruses, and the emergence of humans. A first-rate summary of the actual science of evolution, this Scientific American reader is a timely collection that gives readers an opportunity to consider evolution’s impact in various settings.
Resultados 1-5 de 35
... starkman 51 Life's Rocky Start robert m. hazen 61 Misconceptions about the Big Bang charles h. lineweaver and tamara m. davis 72 The Evolution of the Earth claude j. allègre and stephen h. schneider CELLULAR EVOLUTION 87 Uprooting ...
At present, there are no fundamental challenges to the big bang theory, although there are certainlyunresolved issueswithinthetheoryitself. Astronomers are not sure, for example, how the galaxies were formed, but there is no reason to ...
Fred Hoyle, an English cosmologist, was the first to call this process the big bang. Hoyle intended to disparage the theory, but the name was so catchy it gained popularity. It is somewhat misleading, however, to describe the expansion ...
To be precise, the time elapsed since the big bang is a function of the present value of Hubble's constant and its rate of change. Astronomers have determined the approximate rate of the expansion, but no one has yet been able to ...
Estimates of the expansion time provide an important test for the big bang model of the universe. If the theory is correct, everything in the visible universe should be younger than the expansion time computed from Hubble's law.
Comentarios de la gente - Escribir un comentario
Dinosaurs and Other Monsters