Two consecutive isosceles triangle days (10/10/11 and 10/11/11) got me thinking: Which of the following triangles is more equilateral, the 10-10-11 triangle, or the 10-11-11 triangle?
Or perhaps I should say equilateraler?
[Update: here is my first attempt to answer this question in a mathematically sensible way.]
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This is a collection of free online college courses from the Indian Institute of Technology — Delhi.
http://nptel.iitm.ac.in/courses.php
There are a wide range science and technology courses represented here: Electronics, Mechanics, Information Systems, as well as several Mathematics courses.
There is a mixed-bag of resources available here: many of the Basic Courses have a full curriculum of lecture videos, while some of the more advanced courses currently offer only on-line syllabi.
Another nice resource for students and teachers!
Like most every other internet user, I often end up at Wikipedia.org for one reason or another. Yet I never realized that Wikipedia offers Portals for various categories, like Mathematics:
http://en.wikipedia.org/wiki/Portal:Mathematics
In addition to functioning as a doorway to the vast amount of mathematics available in wikipedia, the portal also offers up selected articles from the archives, a collection of clickable fun facts, and a Picture of the Month.
This is a cool visualization of bicycle usage in London:
http://www.digitalurban.org/2011/02/london-cycle-flows-sociable-physics.html
On October 4th, 2010, there was a public transit strike in London, which maximized bike usage in the city.
The creators claim that the flashes of light that represent the bikes move in accordance with the actual speed and path of the bikes they represent.
An innovative representation that puts me in mind of graph theory and networking!
