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Keyword: lisarandall

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  • Dark matter and the dinosaur: New theory challenges notions on origins of human life

    12/12/2015 1:32:59 AM PST · by Squawk 8888 · 22 replies
    National Post ^ | December 12, 2015 | Joseph Brean
    TORONTO — Dark matter inspires many strange theories, but until now few have involved giant lizards and the origins of humanity. If physicist Lisa Randall’s theory is correct, however, there is a clear link between dark matter, the great unknown majority of universal stuff and the extinction of the dinosaurs, which cleared the path for the rise of mammals, including that special species, homo sapiens. Roughly, her idea is that the rotation of a vast disc of dark matter through our solar system dislodged an asteroid from a weak and distant orbit, and sent it hurtling toward Earth, where it...
  • Leading Harvard physicist has a radical new theory for why humans exist

    11/15/2015 7:47:38 AM PST · by SeekAndFind · 63 replies
    Business Insider ^ | 11/15/2015 | Jessica Orwig
    Where do we come from? There are many right answers to this question, and the one you get depends on who you ask. For example, an astrophysicist might say that the chemical components of our bodies were first forged in the nuclear fires of stars. On the other hand, an evolutionary biologist might look at the similarities between our DNA and that of other primates' and conclude we evolved from apes. Lisa Randall, a theoretical physicist at Harvard University, has a different, and novel answer, which she describes in her latest book, "Dark Matter and the Dinosaurs." Randall has written...
  • Fact or Fiction?: Dark Matter Killed the Dinosaurs

    04/02/2015 10:15:04 PM PDT · by grundle · 58 replies
    Scientific American ^ | March 25, 2015 | Lee Billings
    A new out-of-this-world theory links mass extinctions with exotic astrophysics and galactic architecture Every once in a great while, something almost unspeakable happens to Earth. Some terrible force reaches out and tears the tree of life limb from limb. In a geological instant, countless creatures perish and entire lineages simply cease to exist. The most famous of these mass extinctions happened about 66 million years ago, when the dinosaurs died out in the planet-wide environmental disruption that followed a mountain-sized space rock walloping Earth. We can still see the scar from the impact today as a nearly 200-kilometer-wide crater in...
  • One universe or many? Panel holds unusual debate

    04/02/2006 7:46:13 PM PDT · by snarks_when_bored · 132 replies · 2,564+ views
    World Science ^ | March 30,. 2006
    One universe or many? Panel holds unusual debate March 30, 2006 Special to World Science Scientific debates are as old as science. But in science, debate usually means a battle of ideas in general, not an actual, politician-style duel in front of an audience. Occasionally, though, the latter also happens. And when the topic is as esoteric as the existence of multiple universes, sparks can fly. According to one proposal, new universes could sprout like bubbles off a spacetime "foam" that's not unlike soap bubbles. (Courtesy Lawrence Berkeley National Laboratory) Such was the scene Wednesday evening at the American Museum...
  • Supersymmetry and Parallel Dimensions [profile of Harvard physicist Lisa Randall]

    01/12/2006 11:54:38 AM PST · by snarks_when_bored · 76 replies · 8,388+ views
    The Harvard Crimson ^ | January 6, 2006 | Adrian J. Smith
    Supersymmetry and Parallel Dimensions Harvard Physicst Randall among worlds leading string theorists Published On Friday, January 06, 20061:00 AM By ADRIAN J. SMITH Crimson Staff Writer Professor of Physics Lisa Randall 83, recently named one of Newsweeks most influential people of 2006, rose to the top with her theories on gravity. (Photo credit: CRIMSON/GLORIA B. HO) Professor of Physics Lisa Randall 83 saw how strong gravity could be during a climbing fall in New Hampshire two years ago. She was performing a challenging move when she took a surprising fall, she says. Instead of stopping the fall, her support...
  • Prof Ventures Into New Dimension [Lisa Randall alert!]

    11/28/2005 11:58:35 AM PST · by PatrickHenry · 68 replies · 4,196+ views
    Boston ^ | 28 November 2005 | Paul Restuccia
    Lisa Randall has become a star in the rarefied world of high-energy physics, and her theory about a fifth dimension has caught the imagination of the general public too. That doesnt mean she still isnt shy and a little nervous about all the hoopla. I really like that my work is getting more people interested in science, says the 43-year old Harvard physicist. And while it can get a little nerve-wracking dealing with all the attention, I really enjoy speaking to the public and answering questions. Randall seems constantly in motion. She seldom sits still, and says her mind brims...