Read Night Comes to the Cretaceous: Comets, Craters, Controversy, and the Last Days of the Dinosaurs by James Lawrence Powell Free Online


Ebook Night Comes to the Cretaceous: Comets, Craters, Controversy, and the Last Days of the Dinosaurs by James Lawrence Powell read! Book Title: Night Comes to the Cretaceous: Comets, Craters, Controversy, and the Last Days of the Dinosaurs
The author of the book: James Lawrence Powell
Edition: Mariner Books
Date of issue: September 23rd 1999
ISBN: 0156007037
ISBN 13: 9780156007030
Language: English
Format files: PDF
The size of the: 23.96 MB
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Reader ratings: 7.1

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What killed the dinosaurs? For more than a century, this question has been one of the greatest unsolved mysteries in science. But, in 1980, Nobel Prize-winning physicist Luis Alvarez and his son, Walter, proposed a radical answer: 65 million years ago an asteroid or comet as big as Mt. Everest slammed into the earth, raising a dust cloud vast enough to cause mass extinction. A revolutionary idea that challenged the ice-age extinction theory, the asteroid-impact theory was scorned and derided by the science community. But after years of bitter debate and intense research, an astonishing discovery was made-an immense impact crater in the Yucatán Peninsula that was identified as Ground Zero. The Alvarezes had their proof. A dramatic scientific detective story, Night Comes to the Cretaceous is a brilliant example of science at work-in the trenches, complete with passionate struggles and occasional victories.


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Read information about the author

Ebook Night Comes to the Cretaceous: Comets, Craters, Controversy, and the Last Days of the Dinosaurs read Online! Dr. James L. Powell graduated from Berea College with a degree in Geology. He holds a Ph.D. in Geochemistry from the Massachusetts Institute of Technology and taught Geology at Oberlin College for over 20 years.

He served as Acting President of Oberlin, President of Franklin and Marshall College, President of Reed College, President of the Franklin Institute Science Museum in Philadelphia, and President and Director of the Los Angeles County Museum of Natural History.

Powell currently serves as Executive Director of the National Physical Science Consortium. Asteroid 1987 SH7 is named for him.


Reviews of the Night Comes to the Cretaceous: Comets, Craters, Controversy, and the Last Days of the Dinosaurs


HARVEY

Watch out! Maybe a fundamental change in your life!

RILEY

It was a surprisingly interesting book. Very highly recommended.

FREYA

A book that has changed and continues to change my life for the better!

JAKE

Why do you need to drive a phone?

AMELIE

Why do you need to write a phone?




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TXT: night-comes-to-the-cretaceous-comets-craters-controversy-and-the-last-days-of-the-dinosaurs.txt Night Comes to the Cretaceous: Comets, Craters, Controversy, and the Last Days of the Dinosaurs TXT