March 2009 Archives | Musings

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Austin Weather^#

Today

High: 66°F
PoP: 0%

Tonight

Drizzle
High: 65°F
PoP: 20%

Tomorrow

Chance Rain Showers
High: 61°F
PoP: 30%

Tomorrow Night

Chance Thunderstorms
Low: 61°F
PoP: 30%

Currently:

Partly Cloudy, 79.0°F (26.1°C)
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MathML

$MathML logo$ Posts with this logo use MathML. To see the equations, you either need Mozilla or a MathML plugin for IE/Win. You will also need to install some fonts. 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

Wall Crossing
- Jul 30, 2008
- Gaiotto et al on the wall-crossing formula of Kontsevich and Soibelman.
The President Answers his Critics
- Jul 30, 2004
- Funny, funny stuff from Will Ferrell.
Heterotic Nostalgia
- Feb 7, 2003
- I gave a talk today in our Brown bag seminar about doublet-triplet splitting (and related matters) in String/M-Theory.
Labour Day
- Sep 6, 2004
- This is, perhaps, the last Labour Day of the Bush presidency, so it behoves us to look, once again, at…
So much for Unicode!
- May 6, 2007
- Slashed letters (the Dirac operator, etc) in itex2MML.

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

The Bogdanov’s Have Spoken (3)
- Raghav bhati
  - Apr 22, 2019 06:22
  - Great information Thanks for sharing this Know all about vpn check out my latest article
- ian glendinning
  - Nov 3, 2002 04:55
  - It might not be for real, but that doesn’t mean the gist of the argument is (necessarily) wrong. (Many a ...
- Bob McNees
  - Oct 30, 2002 14:39
  - It’s hard to imagine the Bogdanov brothers without smiles on their faces as they insist that their work is legit. ...

Instiki 0.30.0 and tex2svg 1.0 (2)
- Jacques Distler
  - Mar 16, 2019 20:28
  - … but only if you choose the “Markdown with itex to MathML” text filter.
- Jacques Distler
  - Mar 16, 2019 20:18
  - Works on this blog, too:

Action-Angle Variables (24)
- Matthew Kvalheim
  - Apr 14, 2018 20:23
  - Sorry — when I said “global”, what I really meant was globally on defined on a torus or on a ...
- Jacques Distler
  - Apr 14, 2018 20:06
  - But then there is the question: why do the local 1-forms dφ id\varphi^i patch together to yield well-defined global 1-forms? ...
- Matthew Kvalheim
  - Apr 14, 2018 18:57
  - Interesting. I didn’t know that result. Thanks for the reference. Using that result, given (K 1,…,K n)(K_1,\ldots,K_n), we can locally ...
- Jacques Distler
  - Apr 14, 2018 12:12
  - It seems to me that your complaint, here, is purely a local one, and it is the thing that is ...
- Matthew Kvalheim
  - Apr 14, 2018 03:28
  - ω\omega is a fixed, known 2-form. I completely agree. Given ω\omega and the K iK_i, this defines a ...

MathML Update (1)
- Random Bloke
  - Apr 7, 2018 00:38
  - PW has a new post and he mentions you and an interaction with you in the past. Can you comment ...

Statistical Innumeracy (2)
- Peter Theophilopoulos
  - May 20, 2017 13:31
  - The issue that many times an benign fibroid cyst leads to fears of the worst. My wife has had two ...
- Jim Lifter
  - Jan 15, 2011 15:34
  - I couldn’t agree more. We make such irrational decisions when such great data is available. Your example about breast cancer ...

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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)