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Sean Carroll
Works at Caltech
Attended Harvard University
Lives in Los Angeles
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Scientist
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  • Caltech
    Scientist, present
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Los Angeles
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Physicist at Caltech. Master of time and space.
Introduction
I think about things that are smaller than atoms and/or bigger than galaxies.  Everything in between scares me.

Links on right will lead you to awesome things to read and think about.

Disclaimer: my opinions are the ones everyone should have.
Bragging rights
Married to +Jennifer Ouellette.
Education
  • Harvard University
    Astronomy (PhD), 1988 - 1993
  • Villanova University
    Astronomy (BA), 1984 - 1988
  • Pennsbury High School
    1980 - 1984
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Male

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Sean Carroll

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Pasadena! Weds July 22 -- an evening of Einstein at KPCC.
http://www.scpr.org/events/2015/07/22/1735/e--mc2/
Relativity.  It's nearly as famous as the physicist who rocked the world when he revealed it, first with the special theory in 1905, and then with his General Theory of Relativity published November 25, 1915.
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Sir thank you for the post
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Time travel in the Terminator movies: not totally logical, but not as bad as Looper or Back to the Future.
http://www.vice.com/read/we-asked-a-physicist-how-time-travel-in-the-iterminatori-movies-works-721
We talked about everything from quantum mechanics to why Arnold has to be naked.
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The butterfly effect was awful scientifically but was thoroughly enjoyable.
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Yes that ether given me for three then operations for questionable hygenic reasons as a child by Army practice for children, left me ccrying after vertigo by it, until the next day, when my parents arrived That for me is the ether problem. The vertigo is highly plastic as a trap.
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Occasional reminder that I have a YouTube channel! Not well-curated, but some goodies there.
https://www.youtube.com/user/seancarroll
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...no idea why I can't copy URLs from in-app web browser today, but ordinary web browser works and http://www.reddit.com/r/science/comments/2sdlvy/we_can_detect_intermediatemass_black_holes_in_our/
has all my background on the topic since Januaryish.
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The internet has become a nightmare for women. It shouldn't have to be this way.
http://www.vox.com/2015/6/22/8823757/john-oliver-women-internet-threats
John Oliver makes the best case yet for shutting down the internet forever, setting your laptop on fire, and moving to the mountains.
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+Avery Jenkins, a kitchen is supposed to be a productive, safe place, or it's a terrible kitchen. If someone's just being an asshole and making the kitchen unpleasant for other kitchen-users, it should be they who get out. And if they're actually making the kitchen dangerous, then there's no question of who has to get out.
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Sean Carroll

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Looking forward to introducing folks to GR at next week's Caltech Gravitational Wave Summer School.
http://www.cgwas.org/index.html
Caltech Gravitational Wave Astrophysics School 2015, July 6-10, 2015. CGWAS 2015 is a summer school aimed at junior graduate and senior undergraduate students of physics and astronomy who are interested in learning more about the exciting new field of gravitational wave astrophysics in the age ...
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+Sean Carroll Will any of the presentations be released to youtube?
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Hoops fans! Who has ever averaged over 6 rebounds, 4 assists, 2 steals, and 1.5 blocks per game?@OfficialDrJ6 http://bkref.com/tiny/2Fohj
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"Most" habitable universes (in some measure) are apparently much less smooth than our own.
http://gizmodo.com/astronomers-say-there-may-be-other-universes-that-are-b-1713973728
Maybe we haven’t found alien life because it’s all evolving in other universes. A group of astronomers have just released a research paper suggesting that other universes could be far more habitable than our own. It all depends on a few conditions right when those universes were born.
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+Budd Gottesman this niga pulling shit out of his ass 
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Ed Witten and collaborators wrote a 400-page paper, and all I can do is look for my name in the references.
http://www.preposterousuniverse.com/blog/2015/06/24/algebra-of-the-infrared/
In my senior year of college, when I was beginning to think seriously about graduate school, a magical article appeared in the New York Times magazine. Called "A Theory of Everything," by KC Cole, ...
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+GreatHeathenArmy I I have a very low tolerance for trolls. I have been on G+ for less than a month and it is becomming sort of a hobby.  I already have a hobby within that  hobby and that is slaying trolls as I come across them. This guy and one other just didn't seem worth the effort- I think I sensed his insanity, so I just blocked him instead.
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The arrow of time could be "backwards" elsewhere in the multiverse. That's no stranger than having a different direction of "down" in Australia vs. the US.
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Positive infinity equals negative infinity except one of them has one less subatomic particle than the other.
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Reminder: galaxies can have apparent recession velocities greater than the speed of light. This has nothing to do with inflation; it's happening in the universe now.
http://preposterousuniverse.com/writings/cosmologyprimer/faq.html#ftl
Contents: Primer Home · Overview · The Expanding Universe · The Evolving Universe · The Luminous Universe · The Dark Universe · The Early Universe · The Really Early Universe · The Measured Universe. FAQ. Additional Resources ...
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Apparent recession velocity >c is not due to inflation? Is this because of the distinction of 'inflation' from 'expansion' or due, rather, to G.Theory of Relativity explaining that such widely comparative velocities are largely irrelevant? Or, rather still, that no such apparent velocity can ever be observed -- something receding >c would be invisible.

...I thought I understood, then realized I didn't.
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Great works of literature are encoded in the digits of pi, if only pi can overcome its writer's block.
http://www.gocomics.com/super-fun-pak-comix/2015/06/10
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I know! Hamlet can throw his feces at somebody! That's always fun. But whom...
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Sean's Collections
Best agricultural checkpoint I've ever experienced. I really felt that my agriculture was thoroughly vetted.
Public - 7 months ago
reviewed 7 months ago
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