Dark Matter and the Dinosaurs) [Pdf/E–book] ✓ Lisa Randall


  • ebook
  • 432
  • Dark Matter and the Dinosaurs
  • Lisa Randall
  • en
  • 12 March 2020
  • 9780062328519

Lisa Randall Ä 6 characters

free read Dark Matter and the Dinosaurs 106 characters 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 EarthSixty 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 uarters of the other species on the planet What was its origin Randall propose. 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 dinosaursNow 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 regardThe 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 resultsSome 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 andto 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 itMy 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

download ´ PDF, eBook or Kindle ePUB Ä Lisa Randall

Dark Matter and the Dinosaurs

free read Dark Matter and the Dinosaurs 106 characters Dark Matter and the Dinosaurs S 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 dinosaursWith her uniue 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 d. Adapted from the Literary ReviewThis book comes garlanded with tributes headed by the claim Only Lisa Randall can take us on such a thrilling scientific journey I beg to differ Off the top of my head I can think of half a dozen science writers who could do a better job of describing this particular scientific story and some of them have covered almost all of the material presented here The clue is in the words science writers Randall fits into as particular niche which has recently become over full She is a world renowned scientist in her case based at Harvard University and wrote a splendid book about her own area of expertise Warped Passages So far so good But since then like others in a similar situation she has strayed or been encouraged to stray authorially into territory outside her own specialist area territory that is already better covered by writers who understand science but at least as importantly are gifted communicators George Musser in her homeland and Brian Clegg on this side of the pond are two that spring to mind If it were not for her academic status Randall s latest book would pass by as just another rather humdrum account of the origin and evolution of the Universe and probably I would not be reviewing it Its only claim to be special is a rather desperate one the tenuous titular link between dark matter and the fate of the dinosaurs which is no than a highly speculative variation on an idea that has been around for decades That idea is that as the Solar System bobs up and down on its route around the Galaxy and repeatedly crosses the disc of the Milky Way like the needle of a sewing machine bobbing up and down through a piece of cloth gravitational forces shake loose comets from the region known as the Oort Cloud far beyond the orbit of Pluto Some of these comets fall inward towards the Sun where they may collide with the Earth with devastating conseuences The idea is based on some rather dodgy statistics linking alleged periodicities in so called mass extinctions of life on Earth including the death of the dinosaurs some 65 million years ago with the periodicities associated with the bobbing movement of the Sun in its orbit around the Milky Way The statistics are made no less dodgy by Randall s wild suggestion even Randall herself calls it a speculative scenario that a layer of dark matter within the galactic disc like the meat in a hamburger is what provides the gravitational tug that shakes the comets loose This does of course provide an ideal opportunity to discuss the nature of dark matter and its role in the evolution of the Universe But any scientifically aware person must by now be familiar with the idea that the kind of stuff we are made of in essence atoms makes up only a small proportion of the matter in the Universe so that stars and galaxies are embedded in a sea of invisible dark matter which interacts with our kind of stuff only through gravity Anyone who has an interest in cosmology also knows about dark energy and the discoveries about the cosmic background radiation recently made by satellites such as NASA s WMAP and ESA s Planck Randall covers all this and a discussion of the Solar System and our place in it in workmanlike fashion But workmanlike really isn t good enough when the stories have been covered so often and so well already I uite like the personal vignettes such as Randall s description of meteor watching in the Rocky Mountains But these ought to be the icing on the cake not the highlights of a book like this Even the discussion of dark matter is over familiar except for the minor and unconvincing twist in the tail A bit less than the last uarter of the book actually addresses the topic of the title I m being generous arguably less than half that and a large chunk of this is taken up with telling us with commendable honesty about all the uncertainties in the claim Dinosaurs sell books as do cats and I don t blame Randall for trying to sex up her subject But all the new and interesting though probably wrong stuff here could have comfortably been encapsulated in an article for Scientific American Who might benefit from the book A complete newcomer maybe the proverbial teenager who as yet knows nothing about the Universe and the place of the Earth in space Who will be disappointed by it Anyone interested in dinosaurs And what should the book have been called The Speed of Dark as any Terry Pratchett fan could tell you It would not be fair to say that I am disappointed by the book because I had low expectations But it is fair to say that those expectations have been fulfilled The real disappointment is that if she had not been busy writing this very average account of the Universe Randall could have been concentrating on her research which really is thrilling There is an expression about cobblers and lasts which is apposite

characters Dark Matter and the Dinosaurs

free read Dark Matter and the Dinosaurs 106 characters Dark Matter and the Dinosaurs Evelopment 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 beIn 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 wa. Dark Matter and the Dinosaurs was over my pay grade I m afraid I understand only half of the book completely the rest was an exercise in futility However it seems up to date and on the cutting edge of theory as much as a non scientist reader like myself who reads pop science magazines can comprehend National Academy of Sciences member Lisa Randall s book was published in 2015 Dark Matter and the Dinosaurs one of many books she has written recognized for their uality in describing the high end science Randall is exploring is a thorough physical forces walkabout on the creation of the Earth the solar system and the Universe as only someone who has studied theoretical particle physics and cosmology at Harvard University can do itWhile I did not see any mathematical euations in the book her explanations are based on deductions from sussing out the science from the mathematics which describes how the universe functions and the almost understanding of how it all started and brief descriptions of how particles atoms and elements interact combine and separate to illustrate the why of scientists deductions along with graphs that chart and examine the measurements taken by various high tech instruments and low tech satellite cuties scooting around in the Solar SystemWhew The amount of detail and facts this woman must be able to juggle in her head while drinking coffee must be astronomically huge LiterallyI suspect the book is a wonderfully enlightening read but due to the low wattage of my brain cells I can only say I enjoyed the challenge of reading it I was able to pick out bits which echo what I ve been reading in articles which talk down to readers but Randall s explanations filled in many blanks for meI recommend reading this in depth book several timesCheck out this superior review


10 thoughts on “Dark Matter and the Dinosaurs) [Pdf/E–book] ✓ Lisa Randall

  1. says: Dark Matter and the Dinosaurs) [Pdf/E–book] ✓ Lisa Randall download ´ PDF, eBook or Kindle ePUB Ä Lisa Randall

    Dark Matter and the Dinosaurs) [Pdf/E–book] ✓ Lisa Randall download ´ PDF, eBook or Kindle ePUB Ä Lisa Randall 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

  2. says: Dark Matter and the Dinosaurs) [Pdf/E–book] ✓ Lisa Randall

    characters Dark Matter and the Dinosaurs Dark Matter and the Dinosaurs) [Pdf/E–book] ✓ Lisa Randall 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 heavencause rebirth via re agglomeration depending on religious practices of the ordi

  3. says: Dark Matter and the Dinosaurs) [Pdf/E–book] ✓ Lisa Randall

    Dark Matter and the Dinosaurs) [Pdf/E–book] ✓ Lisa Randall 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

  4. says: Dark Matter and the Dinosaurs) [Pdf/E–book] ✓ Lisa Randall download ´ PDF, eBook or Kindle ePUB Ä Lisa Randall characters Dark Matter and the Dinosaurs

    Dark Matter and the Dinosaurs) [Pdf/E–book] ✓ Lisa Randall “What is the speed of dark?” Lisa Randall Dark MatterLisa Randall is smart But she is also able to take topics that most people know very little about dark matter dark energy etc and translate the hard science into bo

  5. says: download ´ PDF, eBook or Kindle ePUB Ä Lisa Randall Lisa Randall Ä 6 characters characters Dark Matter and the Dinosaurs

    characters Dark Matter and the Dinosaurs Lisa Randall Ä 6 characters Dark Matter and the Dinosaurs) [Pdf/E–book] ✓ Lisa Randall I uite enjoy reading cutting edge physics books particularly about the latest premises of uantum theory and cosmology So I thought this was right up my alley Turns out it wasn't my alley it was a dead end I did not enjoy Dark Matter and the Dinosaurs the Astounding Interconnectedness of the UniverseI’m not a physicist bu

  6. says: Lisa Randall Ä 6 characters download ´ PDF, eBook or Kindle ePUB Ä Lisa Randall Dark Matter and the Dinosaurs) [Pdf/E–book] ✓ Lisa Randall

    Lisa Randall Ä 6 characters download ´ PDF, eBook or Kindle ePUB Ä Lisa Randall characters Dark Matter and the Dinosaurs Adapted from the Literary ReviewThis book comes garlanded with tributes headed by the claim “Only Lisa Randall can take us on such a thrilling scientific journey” I beg to differ Off the top of my head I can think of half a dozen science writers who could do a better job of describing this particular scientific story and some of them have

  7. says: Dark Matter and the Dinosaurs) [Pdf/E–book] ✓ Lisa Randall Lisa Randall Ä 6 characters

    Dark Matter and the Dinosaurs) [Pdf/E–book] ✓ Lisa Randall Randall offers an exotic hypothesis to explain the demise of the dinosaurs 66 million years ago She argues that the solar system passing throu

  8. says: Dark Matter and the Dinosaurs) [Pdf/E–book] ✓ Lisa Randall

    Dark Matter and the Dinosaurs) [Pdf/E–book] ✓ Lisa Randall Lisa Randall Ä 6 characters characters Dark Matter and the Dinosaurs I have read previous books by Lisa Randall and liked them well enough but her new book is in some sense uniue and extraordinary In order to show us how she has come to think that there’s a connection between galactic dark matter and Earth’s periodic extinctions a somewhat long shot hypothesis she takes us in an amazing tour of our Solar System and the universe like no other science for the layperson book ha

  9. says: download ´ PDF, eBook or Kindle ePUB Ä Lisa Randall Lisa Randall Ä 6 characters Dark Matter and the Dinosaurs) [Pdf/E–book] ✓ Lisa Randall

    Dark Matter and the Dinosaurs) [Pdf/E–book] ✓ Lisa Randall download ´ PDF, eBook or Kindle ePUB Ä Lisa Randall Lisa Randall Ä 6 characters 'Dark Matter and the Dinosaurs' was over my pay grade I'm afraid I understand only half of the book completely the rest was an exercise in futility However it seems up to date and on the cutting edge of theory as much as a non scientist reader like myself who reads pop science magazines can comprehend National Academy of S

  10. says: Dark Matter and the Dinosaurs) [Pdf/E–book] ✓ Lisa Randall

    download ´ PDF, eBook or Kindle ePUB Ä Lisa Randall Lisa Randall Ä 6 characters Dark Matter and the Dinosaurs) [Pdf/E–book] ✓ Lisa Randall Fascinating intriguing thought provoking yet also confusing and complicatedLisa Randall has done a good job of taking a ver

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