Dark Matter and the Dinosaurs PDF/EPUB ç Dark Matter


Dark Matter and the Dinosaurs Bestselling author of Warped Passages and Knocking on Heaven s Door and one of today s most influential and highly cited theoretical physicists, Professor Lisa Randall once again effortlessly delivers fascinating science to the general reader Weaving together the cosmos history and our own in an expanding intellectual adventure story, Dark Matter and the Dinosaurs takes us from the mysteries of dark matter and our cosmic environment to the conditions for life on Earth.Sixty six million years ago, an object the size of a city descended from space to crash into Earth, creating a cataclysm that killed off the dinosaurs, along with three quarters of the other species on the planet What was its origin Randall proposes it was a comet that was dislodged from its orbit as the Solar System passed through a disk of dark matter that is embedded in the plane of the Milky Way Her research challenges the usual assumptions about the simple nature of dark matter and demonstrates how scientists formulate and establish new ideas In a sense, it might have been dark matter that killed the dinosaurs.With her unique and wide ranging perspective, Randall connects dark matter to the history of the world in the broadest terms Bringing in pop culture and social and political viewpoints, she shares with us the latest findings established and speculative regarding dark matter, the cosmos, the galaxy, asteroids, comets, and impacts, as well as life s development and extinctions Randall makes clear how connected the planet is to the makeup of the Universe, but also how fragile our place in the Universe, which evolved over billions of years, might be.In this brilliant and fresh exploration of our cosmic environment, Professor Randall explains the underlying science of our world in the breathtaking tale of a Universe in which the small and the large, the visible and the hidden are intimately related Dark Matter and the Dinosaurs illuminates the deep relationships that are critical to our world as well as the astonishing beauty of the structures and connections that surround us It s impossible to read this book and look at either Earth or sky again in the same way. ✅ Book Lover PDF / Epub ⚣ Author Jennifer Kaufman – Kleankitchen.co.uk Professor Lisa Randall once again effortlessly delivers fascinating science to the general reader Weaving together the cosmos history and our own in an expanding intellectual adventure story [Ebook] ➧ Secret Delivery / Her 24-Hour Protector ➭ Delores Fossen – Kleankitchen.co.uk Dark Matter and the Dinosaurs takes us from the mysteries of dark matter and our cosmic environment to the conditions for life on Earth.Sixty six million years ago ❮PDF❯ ❤ Kholodovs Last Mistress Author Kate Hewitt – Kleankitchen.co.uk an object the size of a city descended from space to crash into Earth [Télécharger] ➵ Wicked Sinner (Regency Sinners 7) Auteur Carole Mortimer – Kleankitchen.co.uk creating a cataclysm that killed off the dinosaurs ❰Epub❯ ➞ If the Stiletto Fits... Author Wendy Etherington – Kleankitchen.co.uk along with three quarters of the other species on the planet What was its origin Randall proposes it was a comet that was dislodged from its orbit as the Solar System passed through a disk of dark matter that is embedded in the plane of the Milky Way Her research challenges the usual assumptions about the simple nature of dark matter and demonstrates how scientists formulate and establish new ideas In a sense ❮Read❯ ➸ What Phoebe Wants (Harlequin Flipside, ➻ Author Cindi Myers – Kleankitchen.co.uk it might have been dark matter that killed the dinosaurs.With her unique and wide ranging perspective ❰PDF❯ ❤ Ruthlessly Royal (Self-Made Millionaires Author Robyn Donald – Kleankitchen.co.uk Randall connects dark matter to the history of the world in the broadest terms Bringing in pop culture and social and political viewpoints [PDF / Epub] ☉ An Amish Family Christmas Author Marta Perry – Kleankitchen.co.uk she shares with us the latest findings established and speculative regarding dark matter ☁ [PDF / Epub] ☀ Interrupted Lullaby By Dana R. Lynn ✎ – Kleankitchen.co.uk the cosmos [PDF / Epub] ☁ Gift-Wrapped Governess By Sophia James – Kleankitchen.co.uk the galaxy ➯ [Read] ➫ Vows of Revenge By Dani Collins ➻ – Kleankitchen.co.uk asteroids ❰Read❯ ➪ Not a Fairy Tale Author Romy Sommer – Kleankitchen.co.uk comets ❰Download❯ ➾ The Midwife and the Single Dad Author Gill Sanderson – Kleankitchen.co.uk and impacts ❰Read❯ ➪ Small-Town Billionaire Author Renee Andrews – Kleankitchen.co.uk as well as life s development and extinctions Randall makes clear how connected the planet is to the makeup of the Universe [Ebook] ➥ A Convenient Marriage By Maggie Cox – Kleankitchen.co.uk but also how fragile our place in the Universe [EPUB] ✶ A French Pirouette By Jennifer Bohnet – Kleankitchen.co.uk which evolved over billions of years [PDF / Epub] ✩ The Doctors Courageous Bride ☉ Dianne Drake – Kleankitchen.co.uk might be.In this brilliant and fresh exploration of our cosmic environment [PDF / Epub] ✅ The Demure Miss Manning By Amanda McCabe – Kleankitchen.co.uk Professor Randall explains the underlying science of our world in the breathtaking tale of a Universe in which the small and the large ❄ [EPUB] ✼ Her Christmas Guardian Protective Instincts By Shirlee McCoy ➝ – Kleankitchen.co.uk the visible and the hidden are intimately related Dark Matter and the Dinosaurs illuminates the deep relationships that are critical to our world as well as the astonishing beauty of the structures and connections that surround us It s impossible to read this book and look at either Earth or sky again in the same way. Randall is the first to warn her reader that her new hypothesis is speculative and in need of testing However, she is excited about the kinds of questions this new direction is taking her Randall has been investigating how dark matter might be involved in not only the creation of matter itself, but possibly in the evolution of humans as well The presence of dark matter is not at all speculative It has been detected using a variety of tools and methods What is speculative is the notion that some dark matter might interact with itself Just as ordinary matter comes in different varieties different sizes, charges, etc dark matter too might come in different varieties, some of which might not make a halo, but rather a dense disc that cuts through the the Milky Way and provides an extra gravitational force that might throw a comet off its trajectory and allow it to plunge toward and into earth, thus changing the temperature and atmosphere of Earth Randall has a mixed style of writing At times she makes analogies that are so fantastic, they seem among the best I have read At times though, her writing is dry For example, I found the chapter on Cuvier who I actually love and catastrophe to be so dry, I had trouble paying attention But, her chapters on the structure of the universe how matter was formed, how matter collapses into a disc, how clumping follows the rich get richer power laws,how heavy elements actually help in cooling so that large objects like our sun can form, etc were actually page turners for me I reread some of those sections than once because they were so exciting One of my favorite parts of the book was her discussion of Occam s Razor She prosed a table setting around core function It was brilliant Also wonderful, she treated her reader to a version of human s are not special that went way beyond most things associated with the Copernican revolution She suggested that matter, everything we have ever seen in the universe, is not special So great to be reminded of that I actually laughed audibly while reading that section I cannot wait to see what the telescope Gaia finds Of course I am hoping it will support Randall and Reece s hypothesis If it does not, I am still excited to continue hearing about the questions that continue to drive Randall s work. Give yourself to the Dark Side It is the only way you can save your friends D VaderLisa Randall, a Harvard Science professor, member of the National Academy of Sciences, named one of the 100 Most Influential People by Time Magazine in 2007, and author of three previous books, likes to think big She also likes to think small Her areas of expertise are particle physics and cosmology, which certainly covers a range The big look she offers here is a cosmological take on not only how it came to pass that a large incoming did in the dinosaurs 66 million years ago, but why such decimations of life on Earth arrive with some on a cosmological scale regularity Her explanation has to do with dark matter It makes for an interesting tale, and offers an excellent example of how the scientific method how Daniel Day Louis might play Louis Pasteur approaches problem solving It is a fascinating read that is at times wondrously accessible and at others like trying to bat away a swarm of meteoroids Dark Matter As with most good communicators of science Randall relies on metaphor, and some of hers are quite good My favorite compared methods of detecting dark matter to detecting the presence of insert name of your favorite A list celebrity here You can tell that there is something going on, without actually having to see the celebrity, because you can see swarms, gaggles, pods and packs of paparazzi clumping around the object of their lenses as he she it walks primps flees down the street Dark matter affects the things around it too, and it is by measuring those effects that we can tell it is there, even though it remainsyou knowdark Lisa Randall from her Twitter pagesShe addresses some cosmological questions and offers up the answers that the best current theories provide One example is that the rotational velocity of stars should be sufficient to make them literally spin out of their galaxies, and yet they don t Something must be keeping them in place Care to guess There are like this They vary in Wow Cool levels Randall takes us from a look at how we know dark matter is out there, and its characteristics, to an overview of our solar system This is interesting than a science class slide show of the 8 or 9 if you are my age planets circling around our sun Well, maybe I should say your sun, but I don t really want to get into that There is a lot of other material cruising around out there, and it is significant, as in Please, oh please, do not come crashing into our planet, pretty please.Path of the New Horizons spacecraft into the Kuiper Belt from NASAThe Kuiper Belt, a group of clumped asteroids, not an award for the baddest Kuiper, and the Oort Cloud not where Obchestvo Remeslenogo Truda keeps its data for example, are parts of our solar system, and move through inter stellar space along with the sun and planets The Oort Cloud From NASA You might think of the sundry members of the Solar System as a family all stuffed into one very, very large car of the Wonder Wheel in Coney Island Once everyone is in, the whole crew moves through space or circle in this instance as one But what if there were another Wonder Wheel, one that was made, not of the dense ordinary matter, but of the much thinner dark sort Let s say that it is not vertical but does its spinning thing at an angle And let s say it intersected our Wonder Wheel at one point And every so often, say every thirty some odd million years, the car our solar system is in intersects the material in that other Wonder Wheel The result could be unpleasant The big stuff would probably be ok, our sun, the planets, but some of the smaller bits, say rocks in the Oort cloud and Kuiper Belt, might get knocked out of their usual paths And voila Fireworks Big incomings headed our way yet again Well, that s the scoop I am not giving anything away by laying it out The value of the book lies in showing how theories are examined, tested and accepted or discarded, the scientific method in action.But I would not want to make you think the orbit you take while reading Dark Matter and the Dinosaurs is all clear sailing There are incomings you have to contend with It is always takes a bit effort to absorb material when much of it is new to the reader, particularly when there are many new words, acronyms and concepts being thrown at you I confess that there were points in reading this book when my eyes glazed over It felt like I was reading a list in a foreign language My mind went a bit dark in the chapter on how galaxies are born and in a couple of particle physics chapters near the end On the other hand, enough of the early discussion of dark matter was utterly fascinating When Randall writes of a second, post Big Bang expansion of the universe, it was news to me I quite enjoyed the tour through our solar system, one that included parts we do not usually think of And if you ever wondered about how three words are used, the answer is here Meteors are what we see streaking across the sky We call them meteoroids if they make it to the ground I hereby promise that no meteor will touch the Earth on my watch In fact any alien object hitting Earth is a meteoroid Even Asgardians Meteorites are the detritus of meteoroid impact There is a nifty piece on how we define what is and is not a planet, and some amazing intel on what unexpected materials asteroids and comets might have brought to the Earth over the history of our planet, and another piece on how craters are created And did you know that there is a multi national as in countries not corporations organization that was set up to watch the skies for the next big thing These and such nuggets make the journey with Randall worth the occasional eye glaze And if you are worried about The Big One wiping us out, don t We will see to that ourselves long before a big rock does the job for us The current rate of species extinction is comparable to the one that took place 250 million years ago, the Permian Triassic extinction In that one 90% of species were wiped out, including insects There is always hope that we will, over a period of millions of years, figure out how to keep large floaters from making a mess of our earthly garden With Dark Matter and the Dinosaurs Lisa Randall, by striving to gain greater understanding of how the universe works, is doing her bit to shine a light in the darkness.Review posted 10 30 15Publication date 10 27 15 EXTRA STUFFLinks to the author s Twitter and FB pagesNASA s Site about the Kuiper Belt In 2010, the National Academy of Sciences presented their results on asteroids and the threats they pose in a document entitled Defending Planet Earth Near Earth Object Surveys and Hazard Mitigation StrategiesA nice article in the June 2013 Smithsonian Lisa Randall s Guide to the GalaxyAn interesting set of videos with Randall on BIG thoughts Although the interview is for a different book, Randall s Daily Show interviewwith Jon Stewart is fun and informative re things scientific.Ditto, as Randall is interviewed by Tavis Smiley A nifty set of videos on the hazards presented by asteroids The Dark Song from The Lego Movie It s Awesome Our Souls are DarkIt is an increasingly accepted speculation that souls might in fact be made of dark matter According to our latest models, they dark souls condense first and allow life to settle down around them Of course, they can t be detected since they are not detectable by ordinary matter science On death, the souls depart from the body, and can go to heaven cause rebirth via re agglomeration depending on religious practices of the ordinary matter person associated with the soul It is not yet fully understood how religious practices affect the dark matter core of a person However, we do know that the souls get affected by a lifetime of sins, penance, charity, etc It is accepted by now that no life can form without a dark soul though some scientists still like the older idea that a soul is required only for higher life forms, probably only humans Lower life forms can agglomerate without the gravitational religious pull exerted by the soul core The source of this mysterious force that is akin to gravity but applies only to life forms is yet to be discovered It is exciting to consider that life might be the only source of interaction between dark and ordinary matter, outside the even mysterious realm of gravity This allows us to speculate that ghosts might be real In certain religions, certain required practices being not performed would mean that the soul core is not fully freed from its person form This makes it unstable and dangerous, in a limbo state between dark and ordinary matter, and causes it to react in unpredictable ways with ordinary matter sometimes violating the laws of ordinary matter physics It is not entirely clear how this comes about Dark matter souls normally interact with entirely new forces and particles that do not interact with ordinary matter But it has been observed over time that religion can have an effect on this It is a matter of great speculation how nature of reality is altered by the gravitational religious forces that seem to transcend the dark ordinary boundary and allow some diffuse interactions A new temple is proposed to be built near CERN to test the interactions and to identify the carriers of these interactions We anxiously await the results We are also hoping to bump into a few celebrity souls ghosts over there It is a whole new world that awaits us I really enjoy science books that are well written, by a scientist who has personally contributed to the field This book certainly fits into this category, as Lisa Randall is a good writer This book relates some of the research that she and her collaborators have been doing Much of the book sets the stage so that lay readers can understand her speculative new hypothesis, and put it into perspective Randall s hypothesis is that dark matter is not exclusively arranged in a big halo around the Milky Way galaxy There is a distinct concentration of dark matter in the central plane of our galaxy As our solar system periodically oscillates up and down with respect to the central plane, it is especially perturbed by the concentration of dark matter The period of this oscillation is about 32 million years Comets in the outer reaches of our solar system are perturbed in their orbits They are so far from the sun that a small gravitational perturbation can kick a comet into an orbit that intersects the inner solar system, in the vicinity of the Earth One such comet collided with the Earth about 66 million years ago, creating a crater in Mexico s Yucatan peninsula The comet was 10 or 20 kilometers in diameter, and was responsible for the extinction of most of the living species on Earth, including the dinosaurs.Now, this hypothesis might be totally wrong But, Randall explains how she tested it, and how a future spacecraft mission GAIA will provide additional experimental tests In fact, the GAIA spacecraft mission will measure the positions and velocities of billions of stars in our galaxy It is very fortuitous that the spacecraft was being launched at just the right time, and with exactly the purpose that will test Randall s hypothesis She notes how very lucky she is in this regard.The book reads a bit like a detective story Lisa Randall takes the reader step by step through the process she and her collaborators took, to formulate and test their hypothesis This is science writing at its best, because science is not a bunch of facts Science is a process And this book shows exactly how the process can work Most notably, Randall shows how serendipity can often play a role in science Fortunate coincidences can come together at opportune moments, guiding the research to productive results.Some reviewers find this book to be somewhat dry I disagree it is written in a straightforward style, with none of the cutesy stuff that some science journalists stick in to dumb down their books and.to bring in mass readership That s not to say that the book is devoid of humor I got a big kick out of the photograph in Figure 35 I won t spoil your fun by giving it away you will have to read the book to see it My only complaint about the book, is that its organization seems to be a bit strange at times The full synopsis of the hypothesis does not appear until the very end of the book I guess, that is how it was intended, sort of the denouement of a detective story And, I was almost ready to write a scathing review, because a clear explanation of the hypothesis seemed to be missing from the book But in the end, the full story is told, and it all makes sense Also, I must remark that this book covers a broad range of fields particle physics, astronomy, cosmology, and paleontology I heartily recommend this book to everyone who is interested in learning about how modern science is really done these days.

    ✅ Book Lover PDF / Epub ⚣ Author Jennifer Kaufman – Kleankitchen.co.uk Professor Lisa Randall once again effortlessly delivers fascinating science to the general reader Weaving together the cosmos history and our own in an expanding intellectual adventure story [Ebook] ➧ Secret Delivery / Her 24-Hour Protector ➭ Delores Fossen – Kleankitchen.co.uk Dark Matter and the Dinosaurs takes us from the mysteries of dark matter and our cosmic environment to the conditions for life on Earth.Sixty six million years ago ❮PDF❯ ❤ Kholodovs Last Mistress Author Kate Hewitt – Kleankitchen.co.uk an object the size of a city descended from space to crash into Earth [Télécharger] ➵ Wicked Sinner (Regency Sinners 7) Auteur Carole Mortimer – Kleankitchen.co.uk creating a cataclysm that killed off the dinosaurs ❰Epub❯ ➞ If the Stiletto Fits... Author Wendy Etherington – Kleankitchen.co.uk along with three quarters of the other species on the planet What was its origin Randall proposes it was a comet that was dislodged from its orbit as the Solar System passed through a disk of dark matter that is embedded in the plane of the Milky Way Her research challenges the usual assumptions about the simple nature of dark matter and demonstrates how scientists formulate and establish new ideas In a sense ❮Read❯ ➸ What Phoebe Wants (Harlequin Flipside, ➻ Author Cindi Myers – Kleankitchen.co.uk it might have been dark matter that killed the dinosaurs.With her unique and wide ranging perspective ❰PDF❯ ❤ Ruthlessly Royal (Self-Made Millionaires Author Robyn Donald – Kleankitchen.co.uk Randall connects dark matter to the history of the world in the broadest terms Bringing in pop culture and social and political viewpoints [PDF / Epub] ☉ An Amish Family Christmas Author Marta Perry – Kleankitchen.co.uk she shares with us the latest findings established and speculative regarding dark matter ☁ [PDF / Epub] ☀ Interrupted Lullaby By Dana R. Lynn ✎ – Kleankitchen.co.uk the cosmos [PDF / Epub] ☁ Gift-Wrapped Governess By Sophia James – Kleankitchen.co.uk the galaxy ➯ [Read] ➫ Vows of Revenge By Dani Collins ➻ – Kleankitchen.co.uk asteroids ❰Read❯ ➪ Not a Fairy Tale Author Romy Sommer – Kleankitchen.co.uk comets ❰Download❯ ➾ The Midwife and the Single Dad Author Gill Sanderson – Kleankitchen.co.uk and impacts ❰Read❯ ➪ Small-Town Billionaire Author Renee Andrews – Kleankitchen.co.uk as well as life s development and extinctions Randall makes clear how connected the planet is to the makeup of the Universe [Ebook] ➥ A Convenient Marriage By Maggie Cox – Kleankitchen.co.uk but also how fragile our place in the Universe [EPUB] ✶ A French Pirouette By Jennifer Bohnet – Kleankitchen.co.uk which evolved over billions of years [PDF / Epub] ✩ The Doctors Courageous Bride ☉ Dianne Drake – Kleankitchen.co.uk might be.In this brilliant and fresh exploration of our cosmic environment [PDF / Epub] ✅ The Demure Miss Manning By Amanda McCabe – Kleankitchen.co.uk Professor Randall explains the underlying science of our world in the breathtaking tale of a Universe in which the small and the large ❄ [EPUB] ✼ Her Christmas Guardian Protective Instincts By Shirlee McCoy ➝ – Kleankitchen.co.uk the visible and the hidden are intimately related Dark Matter and the Dinosaurs illuminates the deep relationships that are critical to our world as well as the astonishing beauty of the structures and connections that surround us It s impossible to read this book and look at either Earth or sky again in the same way. Randall is the first to warn her reader that her new hypothesis is speculative and in need of testing However, she is excited about the kinds of questions this new direction is taking her Randall has been investigating how dark matter might be involved in not only the creation of matter itself, but possibly in the evolution of humans as well The presence of dark matter is not at all speculative It has been detected using a variety of tools and methods What is speculative is the notion that some dark matter might interact with itself Just as ordinary matter comes in different varieties different sizes, charges, etc dark matter too might come in different varieties, some of which might not make a halo, but rather a dense disc that cuts through the the Milky Way and provides an extra gravitational force that might throw a comet off its trajectory and allow it to plunge toward and into earth, thus changing the temperature and atmosphere of Earth Randall has a mixed style of writing At times she makes analogies that are so fantastic, they seem among the best I have read At times though, her writing is dry For example, I found the chapter on Cuvier who I actually love and catastrophe to be so dry, I had trouble paying attention But, her chapters on the structure of the universe how matter was formed, how matter collapses into a disc, how clumping follows the rich get richer power laws,how heavy elements actually help in cooling so that large objects like our sun can form, etc were actually page turners for me I reread some of those sections than once because they were so exciting One of my favorite parts of the book was her discussion of Occam s Razor She prosed a table setting around core function It was brilliant Also wonderful, she treated her reader to a version of human s are not special that went way beyond most things associated with the Copernican revolution She suggested that matter, everything we have ever seen in the universe, is not special So great to be reminded of that I actually laughed audibly while reading that section I cannot wait to see what the telescope Gaia finds Of course I am hoping it will support Randall and Reece s hypothesis If it does not, I am still excited to continue hearing about the questions that continue to drive Randall s work. Give yourself to the Dark Side It is the only way you can save your friends D VaderLisa Randall, a Harvard Science professor, member of the National Academy of Sciences, named one of the 100 Most Influential People by Time Magazine in 2007, and author of three previous books, likes to think big She also likes to think small Her areas of expertise are particle physics and cosmology, which certainly covers a range The big look she offers here is a cosmological take on not only how it came to pass that a large incoming did in the dinosaurs 66 million years ago, but why such decimations of life on Earth arrive with some on a cosmological scale regularity Her explanation has to do with dark matter It makes for an interesting tale, and offers an excellent example of how the scientific method how Daniel Day Louis might play Louis Pasteur approaches problem solving It is a fascinating read that is at times wondrously accessible and at others like trying to bat away a swarm of meteoroids Dark Matter As with most good communicators of science Randall relies on metaphor, and some of hers are quite good My favorite compared methods of detecting dark matter to detecting the presence of insert name of your favorite A list celebrity here You can tell that there is something going on, without actually having to see the celebrity, because you can see swarms, gaggles, pods and packs of paparazzi clumping around the object of their lenses as he she it walks primps flees down the street Dark matter affects the things around it too, and it is by measuring those effects that we can tell it is there, even though it remainsyou knowdark Lisa Randall from her Twitter pagesShe addresses some cosmological questions and offers up the answers that the best current theories provide One example is that the rotational velocity of stars should be sufficient to make them literally spin out of their galaxies, and yet they don t Something must be keeping them in place Care to guess There are like this They vary in Wow Cool levels Randall takes us from a look at how we know dark matter is out there, and its characteristics, to an overview of our solar system This is interesting than a science class slide show of the 8 or 9 if you are my age planets circling around our sun Well, maybe I should say your sun, but I don t really want to get into that There is a lot of other material cruising around out there, and it is significant, as in Please, oh please, do not come crashing into our planet, pretty please.Path of the New Horizons spacecraft into the Kuiper Belt from NASAThe Kuiper Belt, a group of clumped asteroids, not an award for the baddest Kuiper, and the Oort Cloud not where Obchestvo Remeslenogo Truda keeps its data for example, are parts of our solar system, and move through inter stellar space along with the sun and planets The Oort Cloud From NASA You might think of the sundry members of the Solar System as a family all stuffed into one very, very large car of the Wonder Wheel in Coney Island Once everyone is in, the whole crew moves through space or circle in this instance as one But what if there were another Wonder Wheel, one that was made, not of the dense ordinary matter, but of the much thinner dark sort Let s say that it is not vertical but does its spinning thing at an angle And let s say it intersected our Wonder Wheel at one point And every so often, say every thirty some odd million years, the car our solar system is in intersects the material in that other Wonder Wheel The result could be unpleasant The big stuff would probably be ok, our sun, the planets, but some of the smaller bits, say rocks in the Oort cloud and Kuiper Belt, might get knocked out of their usual paths And voila Fireworks Big incomings headed our way yet again Well, that s the scoop I am not giving anything away by laying it out The value of the book lies in showing how theories are examined, tested and accepted or discarded, the scientific method in action.But I would not want to make you think the orbit you take while reading Dark Matter and the Dinosaurs is all clear sailing There are incomings you have to contend with It is always takes a bit effort to absorb material when much of it is new to the reader, particularly when there are many new words, acronyms and concepts being thrown at you I confess that there were points in reading this book when my eyes glazed over It felt like I was reading a list in a foreign language My mind went a bit dark in the chapter on how galaxies are born and in a couple of particle physics chapters near the end On the other hand, enough of the early discussion of dark matter was utterly fascinating When Randall writes of a second, post Big Bang expansion of the universe, it was news to me I quite enjoyed the tour through our solar system, one that included parts we do not usually think of And if you ever wondered about how three words are used, the answer is here Meteors are what we see streaking across the sky We call them meteoroids if they make it to the ground I hereby promise that no meteor will touch the Earth on my watch In fact any alien object hitting Earth is a meteoroid Even Asgardians Meteorites are the detritus of meteoroid impact There is a nifty piece on how we define what is and is not a planet, and some amazing intel on what unexpected materials asteroids and comets might have brought to the Earth over the history of our planet, and another piece on how craters are created And did you know that there is a multi national as in countries not corporations organization that was set up to watch the skies for the next big thing These and such nuggets make the journey with Randall worth the occasional eye glaze And if you are worried about The Big One wiping us out, don t We will see to that ourselves long before a big rock does the job for us The current rate of species extinction is comparable to the one that took place 250 million years ago, the Permian Triassic extinction In that one 90% of species were wiped out, including insects There is always hope that we will, over a period of millions of years, figure out how to keep large floaters from making a mess of our earthly garden With Dark Matter and the Dinosaurs Lisa Randall, by striving to gain greater understanding of how the universe works, is doing her bit to shine a light in the darkness.Review posted 10 30 15Publication date 10 27 15 EXTRA STUFFLinks to the author s Twitter and FB pagesNASA s Site about the Kuiper Belt In 2010, the National Academy of Sciences presented their results on asteroids and the threats they pose in a document entitled Defending Planet Earth Near Earth Object Surveys and Hazard Mitigation StrategiesA nice article in the June 2013 Smithsonian Lisa Randall s Guide to the GalaxyAn interesting set of videos with Randall on BIG thoughts Although the interview is for a different book, Randall s Daily Show interviewwith Jon Stewart is fun and informative re things scientific.Ditto, as Randall is interviewed by Tavis Smiley A nifty set of videos on the hazards presented by asteroids The Dark Song from The Lego Movie It s Awesome Our Souls are DarkIt is an increasingly accepted speculation that souls might in fact be made of dark matter According to our latest models, they dark souls condense first and allow life to settle down around them Of course, they can t be detected since they are not detectable by ordinary matter science On death, the souls depart from the body, and can go to heaven cause rebirth via re agglomeration depending on religious practices of the ordinary matter person associated with the soul It is not yet fully understood how religious practices affect the dark matter core of a person However, we do know that the souls get affected by a lifetime of sins, penance, charity, etc It is accepted by now that no life can form without a dark soul though some scientists still like the older idea that a soul is required only for higher life forms, probably only humans Lower life forms can agglomerate without the gravitational religious pull exerted by the soul core The source of this mysterious force that is akin to gravity but applies only to life forms is yet to be discovered It is exciting to consider that life might be the only source of interaction between dark and ordinary matter, outside the even mysterious realm of gravity This allows us to speculate that ghosts might be real In certain religions, certain required practices being not performed would mean that the soul core is not fully freed from its person form This makes it unstable and dangerous, in a limbo state between dark and ordinary matter, and causes it to react in unpredictable ways with ordinary matter sometimes violating the laws of ordinary matter physics It is not entirely clear how this comes about Dark matter souls normally interact with entirely new forces and particles that do not interact with ordinary matter But it has been observed over time that religion can have an effect on this It is a matter of great speculation how nature of reality is altered by the gravitational religious forces that seem to transcend the dark ordinary boundary and allow some diffuse interactions A new temple is proposed to be built near CERN to test the interactions and to identify the carriers of these interactions We anxiously await the results We are also hoping to bump into a few celebrity souls ghosts over there It is a whole new world that awaits us I really enjoy science books that are well written, by a scientist who has personally contributed to the field This book certainly fits into this category, as Lisa Randall is a good writer This book relates some of the research that she and her collaborators have been doing Much of the book sets the stage so that lay readers can understand her speculative new hypothesis, and put it into perspective Randall s hypothesis is that dark matter is not exclusively arranged in a big halo around the Milky Way galaxy There is a distinct concentration of dark matter in the central plane of our galaxy As our solar system periodically oscillates up and down with respect to the central plane, it is especially perturbed by the concentration of dark matter The period of this oscillation is about 32 million years Comets in the outer reaches of our solar system are perturbed in their orbits They are so far from the sun that a small gravitational perturbation can kick a comet into an orbit that intersects the inner solar system, in the vicinity of the Earth One such comet collided with the Earth about 66 million years ago, creating a crater in Mexico s Yucatan peninsula The comet was 10 or 20 kilometers in diameter, and was responsible for the extinction of most of the living species on Earth, including the dinosaurs.Now, this hypothesis might be totally wrong But, Randall explains how she tested it, and how a future spacecraft mission GAIA will provide additional experimental tests In fact, the GAIA spacecraft mission will measure the positions and velocities of billions of stars in our galaxy It is very fortuitous that the spacecraft was being launched at just the right time, and with exactly the purpose that will test Randall s hypothesis She notes how very lucky she is in this regard.The book reads a bit like a detective story Lisa Randall takes the reader step by step through the process she and her collaborators took, to formulate and test their hypothesis This is science writing at its best, because science is not a bunch of facts Science is a process And this book shows exactly how the process can work Most notably, Randall shows how serendipity can often play a role in science Fortunate coincidences can come together at opportune moments, guiding the research to productive results.Some reviewers find this book to be somewhat dry I disagree it is written in a straightforward style, with none of the cutesy stuff that some science journalists stick in to dumb down their books and.to bring in mass readership That s not to say that the book is devoid of humor I got a big kick out of the photograph in Figure 35 I won t spoil your fun by giving it away you will have to read the book to see it My only complaint about the book, is that its organization seems to be a bit strange at times The full synopsis of the hypothesis does not appear until the very end of the book I guess, that is how it was intended, sort of the denouement of a detective story And, I was almost ready to write a scathing review, because a clear explanation of the hypothesis seemed to be missing from the book But in the end, the full story is told, and it all makes sense Also, I must remark that this book covers a broad range of fields particle physics, astronomy, cosmology, and paleontology I heartily recommend this book to everyone who is interested in learning about how modern science is really done these days."/>
  • ebook
  • 432 pages
  • Dark Matter and the Dinosaurs
  • Lisa Randall
  • 17 October 2018
  • 9780062328519

About the Author: Lisa Randall

LISA RANDALL is Professor of Physics at Harvard University She began her physics career at Stuyvesant High School in New York City She was a finalist, and tied for first place, in the National Westinghouse Science Talent Search She went on to Harvard where she earned the BS 1983 and PhD 1987 in physics She was a President s Fellow at the University of California at Berkeley, a postdoctoral


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