March 2009 Archives | Musings

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Austin Weather^#

Sunday

Chance Thunderstorms
High: 91°F
PoP: 46%

Sunday Night

Chance Rain Showers
Low: 75°F
PoP: 25%

Monday

Slight Chance Thunderstorms
High: 93°F
PoP: 21%

Monday Night

Partly Cloudy
Low: 75°F
PoP: 2%

Currently:

Mostly Cloudy, 88.0°F (31.1°C)
(Doppler Radar)

MathML

$MathML logo$ Posts with this logo use MathML. The posts were authored in itex (an extension of WebTeX) using the itexToMML Text Filter plugin for MovableType (the README file).

Calendar

March 2009's Entries

Fun (With) Video
- Mar 2, 2009
- Fantastic fingering ferrofluids.

Random Past Entries

Delays
- Jun 26, 2004
- Storms in Dallas, papers from the Arxivs.
del Pezzo
- Nov 3, 2006
- A bit on the Verlinde-Wijnholt construction of Standard Model-like gauge theories on a D3-brane at a del Pezzo singularity.
Camino 1.0
- Feb 16, 2006
- … and it finally supports MathML.
MathML and Accessibility
- Aug 11, 2003
- Recently, I joked that, whatever my efforts to make these pages Accessible, no Screen Reader in existence could handle MathML….
Klebanov-Polyakov
- Oct 14, 2002
- Strange paper today by Klebanov & Polyakov. They claim the Fradkin-Vassiliev theory (a theory with an infinite number of higher…

MT How-To

Validating Comments
- May 3, 2003
- Run comments through the W3C Validator before posting. The first in a series of “How-To” articles on MovableType.
Bullet-Proofing II
- May 11, 2003
- More bullet-proofing tips to ensure your blog is valid XHTML
Text Filters for Comments
- May 19, 2003
- Allow a choice of Text Filters in your Comment-entry form.
Serve it Up!
- May 26, 2003
- Serving your blog as XHTML 1.1 with a MIME-type of application/xhtml+xml.
<abbr>, <acronym>, Accessibility & ...
- Sep 10, 2003
- A tutorial on marking up abbreviations and an MT plugin which makes the job easy.
Forcing Comment Previews
- Jun 16, 2004
- Introducing the MTHash plugin, and a reliable way to force Comment Previews.
Internationalization and Trackbacks
- Feb 17, 2005
- In which our hero gets fed up with gibberish Trackbacks and takes matters in his own hands.

Recent Comments

Asymptotic Safety and the Gribov Ambiguity (10)
- Mitchell Porter
  - Feb 20, 2025 08:02
  - Hello Jacques! I noticed that a paper appeared (2502.12290) proposing to study asymptotic safety from a swampland perspective, and you’re ...
- M-theory
  - Nov 23, 2015 10:18
  - Hello, please have a look at this. Finally, a prediction for M-theory: http://www.science20.com/a_quantum_diaries_survivor/supersymmetry_is_about_to_be_discovered_kane_says-160367 So I guess if no such gluino ...
- thyme
  - Oct 2, 2015 14:30
  - What do you think of this paper? http://arxiv.org/abs/1509.02036
- Detective Holder
  - Aug 20, 2015 22:54
  - What happens if the LHC doesn’t find SUSY? What would it mean?
- Jesse
  - Aug 19, 2015 13:38
  - What are the latest interesting developments in string theory? Any promising avenues you’d like to talk about?

Golem VI (4)
- Jacques Distler
  - Sep 30, 2024 17:32
  - There are many reasons why that would have been advantageous. A Linux virtual machine on one of the UDC servers ...
- Jimmy
  - Sep 30, 2024 17:27
  - Any plans to migrate to Linux on non-Apple hardware?
- Jacques Distler
  - Sep 30, 2024 11:14
  - Well, the M2 sports 10 GPU cores and 16 Neural Engine cores. So Apple clearly had some AI features in ...
- Mitchell Porter
  - Sep 30, 2024 10:17
  - Welcome to Golem VI! I wonder to what extent AI will become part of the OS, in this or the ...

Motivation (32)
- Jacques Distler
  - Sep 16, 2024 12:00
  - So silly to have Distler (and Witten) still talking this way ~ 2 decades later… You did read the date ...
- Mark Paris
  - Sep 16, 2024 10:56
  - “String Theory is the only plausible vehicle” (still) seems short-sighted and myopic. Such commentary, if it’s at all necessary (it’s ...
- James Redford
  - Jan 6, 2008 21:19
  - For the correct quantum gravity theory, see the below paper: F. J. Tipler, “The structure of the world from pure ...
- boreds
  - Sep 2, 2005 11:42
  - Right, that’s pretty much what I meant above. Thanks Jacques
- Jacques Distler
  - Sep 2, 2005 11:33
  - So is there a heuristic way to see how string theory sorts out this mess? String Theory treats the metric ...

The Zinn-Justin Equation (1)
- Rich
  - Aug 2, 2024 16:49
  - Hello, Prof. Distler. I just read this post: https://golem.ph.utexas.edu/~distler/blog/archives/002943.html#more What would you say is a good undergrad particle physics book ...

Entanglement for Laymen (17)
- Blakely Moore
  - Jun 21, 2024 11:50
  - Obviously I am very late to this post, but I just wanted to say that as a layperson (with absolutely ...
- Jacques Distler
  - Feb 12, 2024 12:46
  - Just to be clear, there’s nothing special about 45 ∘45^\circ. You can write down the projection matrices P A(θ),P B(θ)P_A(\theta),P_B(\theta) ...
- Jacques Distler
  - Feb 11, 2024 11:46
  - Sorry, but no. The state of the photon pair (in an obvious basis) is ρ c=12(0 0 0 0 0 ...
- Stefan G Freundt
  - Feb 11, 2024 01:19
  - Sorry, but your explanation is wrong. If you rotate the polarization filters by 45 degrees, they are either aligned the ...
- Peter
  - Jan 19, 2024 11:10
  - https://vixra.org/abs/1609.0129 A Classical System for Producing “Quantum Correlations” by Robert H. McEachern includes Shannon classical noise to model quantum correlations.

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March 2, 2009

Fun (With) Video

Been rather busy with other matters, but I thought I would share a cool little physics video with you.

Continue reading “Fun (With) Video” ...

Posted by distler at 10:17 AM | Permalink | Followups (17)