Cosmic mistake in my first version of this message:
"arrays of 1,000 galaxies are 95% dark energy"
should of course be:
"arrays of 1,000 galaxies are 95% dark MATTER"
Apologies to all.
—Stewart
> On Apr 5, 02016, at 10:11 AM, Stewart Brand <s...@longnow.org
> <mailto:s...@longnow.org>> wrote:
>
> No one thinks longer, or bigger, than astrophysicists.
>
> “This is the golden age of cosmology,” says Priya Natarajan, because new data
> keeps pouring in to feed even the most radical theories. And the dominant
> mysteries are profound. She observes that “The vast majority of stuff in the
> universe—both dark matter and dark energy, which dominate the content and
> fate of the universe—is unknown.“
>
> The universe’s greatest exotica are the focus of her research—dark matter,
> dark energy, and black holes. She is an expert, for example, in the complex
> behavior and gravitational lensing of galaxy clusters, where arrays of 1,000
> galaxies are 95% dark matter [corrected]. One of the world’s leading
> astrophysicists, Priyamvada Natarajan is a professor in the Departments of
> Astronomy and Physics at Yale University and at the Dark Cosmology Center,
> Niels Bohr Institute, University of Copenhagen, Denmark—and an active
> proponent for the public understanding of science.
>
> "Solving Dark Matter and Dark Energy," Priyamvada Natarajan, SFJAZZ Center,
> Hayes Valley, San Francisco, 7pm, Monday April 11. The show starts promptly
> at 7:30pm.
>
> To be sure of a seat:
> • Long Now Members <https://longnow.org/membership/> can use the discount
> code on the Natarajan Seminar page to reserve 2 free seats
> <http://longnow.org/seminars/02016/apr/11/solving-dark-matter-and-dark-energy/>.
> • You can purchase tickets for $15 each
> <http://longnow.org/seminars/02016/apr/11/solving-dark-matter-and-dark-energy/>.
> • Seminar at SFJAZZ Center <http://www.sfjazz.org/visit/directions> 201
> Franklin Street, San Francisco, CA 94102
> • Tune into the live audio stream <http://longnow.org/live/> for Long Now
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> Share this talk: Priyamvada Natarajan, "Solving Dark Matter and Dark Energy"
> Long Now talk on 4/11 http://goo.gl/NAIxed <http://goo.gl/NAIxed>
>
> Talks coming up:
> May 2 (Mon.) - Walter Mischel, The Marshmallow Test: Mastering Self-Control
> <http://longnow.org/seminars/02016/may/02/marshmallow-test-mastering-self-control/>
> June 20 (Mon.) - Brian Christian, Algorithms to Live By
> <http://longnow.org/seminars/02016/jun/20/algorithms-live/>
>
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> This is one of a monthly series of Seminars About Long-term Thinking (SALT)
> organized by The Long Now Foundation. Free audio and my summaries of all
> previous talks are available for download here <http://longnow.org/seminars/>
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> You are welcome to forward this note to anyone you think might be interested.
>
> --Stewart Brand s...@longnow.org <mailto:s...@longnow.org>
>
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--Stewart
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