Professor David J. Helfand, Ph.D.

Professor David J. Helfand
  • Columbia University
  • University of Massachusetts
100 billion: the number of atoms in a neuron, neurons in a human brain, stars in our galaxy, and galaxies in the universe. The equality? Coincidence. That we know this? A cause for celebration.
Dr. David J. Helfand is Professor of Astronomy at Columbia University, where he has taught for over 30 years. He was an undergraduate at Amherst College and earned his Ph.D. in Astronomy from the University of Massachusetts, Amherst, where he worked under Professor Joseph Taylor, the 1993 Nobel Laureate in Physics. Professor Helfand's research has covered many areas of modern astrophysics, including radio, optical, and X-ray observations of celestial sources ranging from nearby stars to the most distant quasars. He is involved in a major project to survey our galaxy with a sensitivity and resolution a hundred times greater than what is currently available. The goal is to obtain a complete picture of stellar birth and death in the Milky Way. Professor Helfand received a Presidential Teaching Award and a Great Teacher Award from the Society of Columbia Graduates. At Columbia, he realized a long-term goal to introduce a science course into the university's famed Core Curriculum. In addition to his teaching duties, Professor Helfand lectures extensively on science to the general public, has appeared on the Discovery Channel's Science News, and is featured in the National Geographic Channel's Known Universe.
Testimonials

"Professor Helfand's erudition and subtle humor combine to provide a highly instructive and entertaining lecture series. Highly recommended for everyone."

5 Courses and Sets

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5 Courses and Sets

  1. Physics of History

    Physics of History

    David J. Helfand
    4.5 out of 5
    88% of reviewers would recommend this product
    (70)
    Starting at $254.95 Starting at $254.95 $254.95 $254.95$254.95
    With recent developments in technology, scientists can now use physics to explore intimate details about history, from the rise and fall of preliterate societies to the origins of the solar system. The Physics of History, taught by award-winning Professor David J. Helfand of Columbia University, gives you the background you need to understand how scientists know what they do about the past. These 24 richly...
  2. (Set) Mathematics, Philosophy, and the "Real World" & Physics Set

    (Set) Mathematics, Philosophy, and the "Real World" & Physics

    Taught By Multiple Professors
    Starting at $629.90 Starting at $629.90 $629.90 $629.90$629.90
    Join two engaging professors as they guide you through the intriguing ways that mathematics and physics have been used to better understand our world. Professor Judith V. Grabiner shows you how mathematics has shaped human thought in profound and exciting ways with Mathematics, Philosophy, and the "Real World," which explores mathematical concepts as they apply to a fascinating range of philosophical and real-world...
  3. (Set) Physics of History & Cosmology: The History and Nature of Our Universe  Set

    (Set) Physics of History & Cosmology: The History and Nature of Our Universe

    Taught By Multiple Professors
    Starting at $629.90 Starting at $629.90 $629.90 $629.90$629.90
    Discover the fascinating insights modern scientists have uncovered about the world around us with this engaging two-course set. In The Physics of History, investigate an astonishing range of cases in which physics has helped scientists redefine history. Then, explore the origin, evolution, composition, and probable fate of our universe with Cosmology: The History and Nature of Our Universe.
  4. (Set)  Physics of History & Meteorology Set

    (Set) Physics of History & Meteorology

    Taught By Multiple Professors
    Starting at $509.90 Starting at $509.90 $509.90 $509.90$509.90
  5. (Set) Physics of History & Physics in Your Life  Set

    (Set) Physics of History & Physics in Your Life

    Taught By Multiple Professors
    Starting at $629.90 Starting at $629.90 $629.90 $629.90$629.90
    Discover the instrumental roles that physics plays in solving the mysteries of the past and of our everyday lives. Start by examining how scientists use physics to explore intimate details about history from the rise and fall of preliterate societies to the origins of the solar system with The Physics of History. Then, explore the physics of everyday events in a manner that is informative, fun, and has the potential...