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eBook Genesis: The Scientific Quest for Life's Origin download

by Robert M. Hazen

eBook Genesis: The Scientific Quest for Life's Origin download ISBN: 030910310X
Author: Robert M. Hazen
Publisher: Joseph Henry Press (September 9, 2005)
Language: English
Pages: 368
ePub: 1724 kb
Fb2: 1790 kb
Rating: 4.4
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Category: Different
Subcategory: Science and Mathematics

Robert M. Hazen is a scientist at the Carnegie Institution of Washington and the Clarence Robinson Professor of. .But this doesn’t mean that it was the only Genesis on Earth

Robert M. Hazen is a scientist at the Carnegie Institution of Washington and the Clarence Robinson Professor of Earth Science at George Mason University. Dr Hazen is the author of man books including The Breakthrough, Why Aren't Black Holes Black and the bestselling Science Matters: Achieving Scientific Literacy which he co-authored with James Trefil. But this doesn’t mean that it was the only Genesis on Earth. Maybe life emergence from life and several stages of life was required to get the final product as life is today or it was the only one that could survive the conditions. There are so many questions about Origin of Life that begs for answers.

The scientific quest for life's origin. Cover photo of microscopic vesicles courtesy of Robert M. Hazen and David W. Deamer. A key step in life's origin may have been the spontaneous assembly of these cell-like spheres of molecules

The scientific quest for life's origin. A key step in life's origin may have been the spontaneous assembly of these cell-like spheres of molecules. Illustrations on pages 18, 145, 153, 159, 195, and 226-227 by Matthew Frey, Wood Ronsaville Harlin, In. Annapolis, Maryland. Printed in the United States of America.

Start by marking Genesis: The Scientific Quest for Life's Origin as Want to Read: Want to Read savin. ant to Read.

Life on Earth arose nearly 4 billion years ago, bursting forth from air, water, and rock. Astrobiologist Robert Hazen has spent many years dealing with the fundamental questions of life’s genesis. Though the process obeyed all the rules of chemistry and physics, the details of that original event pose as deep a mystery as any facing science.

Genesis tells the tale of transforming scientific advances in our quest for life’s origins. Written with grace, beauty, and authority, it goes directly to the heart of who we are and why we are here. Science inevitably plays a key role in any discussion of life’s origins, dealing less with the question of why life appeared on Earth than with where, when, and how it emerged on the blasted, barren face of our primitive planet.

This is the companion volume to Robert Hazen's 24-lecture course "Origins of Life" published on audiotape .

This is the companion volume to Robert Hazen's 24-lecture course "Origins of Life" published on audiotape and DVD by The Teaching Company. The book follows Dr. Hazen's lectures very closely. The book also includes descriptions of some of the laboratory experiments that have been done in the field, to acquaint the reader with the nitty-gritty of "bottom up" experimental science.

Abiogenesis, the scientific quest for life's origin, is profoundly moving and brilliantly presented in this superb book. Author Robert Hazen exemplifies the intellect, insight, determination, and sense of adventure that scientists around the world utilize when seeking answers to life's most basic riddles.

Also by robert M. hazen. Genesis: The Scientific Quest for Life’s Origins. The Sciences: An Integrated Approach with James Trefil. Why Aren’t Black Holes Black? with Maxine Singer. Keepers of the Flame with Margaret Hazen. Comparative Crystal Chemistry with Larry Finger. The Music Men with Margaret Hazen. The Poetry of Geology. Wealth Inexhaustible with Margaret Hazen.

He is also the Clarence Robinson Professor of Earth Science at George Mason University

He is also the Clarence Robinson Professor of Earth Science at George Mason University. in geology from the Massachusetts Institute of Technology and his P. in earth sciences from Harvard University. Life on Earth arose nearly 4 billion years ago, bursting forth from air, water, and rock

Life on Earth arose nearly 4 billion years ago, bursting forth from air, water, and rock. Though the process obeyed all the rules of chemistry and physics, the details of that original event pose as deep a mystery as any facing science. How did non-living chemicals become alive? While the question is (deceivingly) simple, the answers are unquestionably complex. Science inevitably plays a key role in any discussion of life’s origins, dealing less with the question of why life appeared on Earth than with where, when, and how it emerged on the blasted, barren face of our primitive planet. Astrobiologist Robert Hazen has spent many years dealing with the fundamental questions of life’s genesis. As an active research scientist, he is down deep in all the messy details that science has to offer on the subject, tracing the inexorable sequence of events that led to the complicated interactions of carbonbased molecules. As he takes us through the astounding process of emergence, we are witness to the first tentative steps toward lifeâ€"from the unfathomable abundance of carbon biomolecules synthesized in the black vacuum of space to the surface of the Earth to deep within our planet’s restless crust. We are privy to the breathtaking drama that rapidly unfolds as life prevails. The theory of emergence is poised to answer a multitude of questionsâ€"even as it raises the possibility that natural processes exist beyond what we now know, perhaps beyond what we even comprehend. Genesis tells the tale of transforming scientific advances in our quest for life’s origins. Written with grace, beauty, and authority, it goes directly to the heart of who we are and why we are here.

Comments: (7)
Loni
This is the companion volume to Robert Hazen's 24-lecture course "Origins of Life" published on audiotape and DVD by The Teaching Company. The book follows Dr. Hazen's lectures very closely. He does a very good job of bringing the reader up-to-date on the current state of scientific research on the origins of life. The book also includes descriptions of some of the laboratory experiments that have been done in the field, to acquaint the reader with the nitty-gritty of "bottom up" experimental science. He also uses specific historical examples to acquaint the reader with various ethical dilemmas in the practice of science. In a field of competing theories, his approach is, on the whole, very even-handed and he is very open about stating his own preferences and the reasons for them. Some of the chemistry in this book was challenging, but I found that my high school chemistry course adequately enabled me to follow his line of reasoning.
BOND
I hesitate to give this a 3 when I know it's worthy of a 5. I have no scientific mind and struggle with all the concepts. Any scientist would breeze thru the book. Hazen likely wrote this as simply as he could; it was a challenging for me to read. His "The Story of Earth" seemed easier to comprehend. Even so, I completed the book knowing that the more I read these concepts the clearer they will become. So for that reason I recommend this book even if you are as confused as I. I'm confident scientists like Hazen will figure out how life started and that gives me great comfort. Thank you Dr. Hazen ... keep writing. We want to know.
Dellevar
Its’ what you find along the way, could be more important than finding what your seeking. What have you scientists have found, so far. There is more than one way to develop chemistry for life. There is more than one way to develop a code for life. There is more than one place that life could have originated. If one of these scenarios for the Origin of Life discussed in the book made life here on Earth, then this begs the next question. Could life develop on terrestrial planets or moons have a different code, chemistry, or environmental conditions. If so, maybe they should be looking for life on other planets with this in mind.

Life on Earth has the same genetic code, chemistry, handiness of molecules, amino acids and method of fabricating protein. This means that all life on this planet must have a common ancestor. But this doesn’t mean that it was the only Genesis on Earth. Maybe life emergence from life and several stages of life was required to get the final product as life is today or it was the only one that could survive the conditions.

There are so many questions about Origin of Life that begs for answers. Keep up the work, so you can prevent Intelligent Design from building a nest and roosting on this Origin of Life issue.
ladushka
Hazen's book "Gen-e-sis" is much like Ward's new one, "Life as We do Not Know It," which I read at the same time. In fact, the two authors are so similar in their interests and goals I was surprised that neither mentioned the other by name. Hazen's style is more direct, while Ward's is a little more playful. While Ward's emphasis is definitely the search for extraterrestrial life and discusses planetary potentials, Hazen's has a greater focus on what it took to have developed it here in the first place and discusses the details of origin research.

"Gen-e-sis" is a good source for the who, what, when, where, why and how of origin science. It is an up to date compendium of what is known about modern microscopic life and the systems that it uses. More importantly for the student interested in the topic, he provides a very good description of the equipment, techniques, and personal characteristics of the researchers doing this type of work. The book would be a very good addition to a high school library, not only in its capacity as a reference on origin of life research, but for the information on the occupation of bioscience researcher.

The author approaches his topic by examining the issues of how life arose from non-life and which of several issues was solved first: cellular segregation of "outside" from "inside," metabolism, or replication. These points are not necessarily clear to most of us. We are ourselves and live with other organisms of great complexity, not only with respect to internal organization but with respect to inter-species organization in the natural ecology of our environment. In short life on the planet has become so elaborate that it almost seems impossible that it could ever have been simpler even at the level of single cells.

Dr. Hazen explores the current research into the ubiquity of biomolecules, how they might arise spontaneously, how they survive under different conditions, and how they might congregate into larger molecules. I found especially interesting the discussion of the spontaneous self-aggregation of lipid membranes from molecules with hydrophilic and hydrophobic ends. Certainly the formation of double layers of these molecules into more cellular like membranes in laboratory settings was amazing.

He also discusses the RNA and DNA `worlds' and the possibility that protein or other catalytic molecules might have performed the function of replicators and metabolizers until the more complex systems used by modern life arose to take over the functions. He discusses the now rather old notion of a clay world, proposed originally by Cairns-Smith. Here clays of various types are believed to have served as templates for the natural aggregation of organic molecules which later became independent of their clay "parents" by replicating themselves. This theory still has an undeniable fascination. The possibility that rock pores might have served as the original cell "membranes" is also intriguing along this line.

With a passing reference to the work of the Santa Fe Institute, particularly the research of Kaufmann, and of Per Bak into self organizing criticality and self emerging properties, Hazen notes that critical quantities of materials needed for life to get going may have led almost spontaneously to the origin of life. In fact it is suggested that it might do so where ever these conditions arose in the universe.

Probably one of the best features of the book is the discussion of the problems that arise when carrying theory into research. A great theory may produce disappointing re, may not be practicable at all, or may illuminate problems with the theory. A case in point is the issues arising with the self organizing membranes mentioned above. Here it was discovered that while membranes could arise quite simply, they didn't allow anything to pass into or out of the interior. Living cells allow a flow of materials across the membrane, usually with a gradient of some kind, prevent materials from entering or leaving by virtue of pore verses particle size, or actively transport materials into or out of the cell's interior. A cell that can't do this would either poison itself or starve to death. Such research provides useful negative information to take back to the drawing board.

An excellent overview of origin science, and a good book to read with Ward's on extraterrestrial life.