From Graphics to Math


I recomend that you use Firefox to read this post.

Yesterday, Jure Triglav said

“I dropped by to let you know that I wrote a new post on scientific data visualization: and would love any kind of feedback you could give me”

at #sciencelab (a nice place to talk with people about how to do science in the 21st).

Jure’s post is awesome (and you should read it). The main point of it are that “a committee of several really smart people from all branches of science and engineering” wrote a document for standardizing scientific graphics in 1914.

One of the rules at this document “is essentially saying that data should accompany the figure. A hundred years later, we’re still far from applying this simple but powerful rule. Projects like The Content Mine expend a tremendous amount of energy trying to get data back from figures, and even then it’s a very lossy process. All of that could be avoided if we just follow this one simple rule.”

At Jure’s post you will find what you can do to follow this one simple rule when working with graphics. In this post I want to extend this simple rule to mathematical expressions.

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MathML November Meeting


Sorry for the delay to write this.

This is a report about the Mozilla MathML November IRC Meeting (see the announcement here). The topics of the meeting can be found in this PAD (local copy of the PAD) and the IRC log (local copy of the IRC log) is also available.

The next meeting will be in January 7th at 8pm UTC (check the time at your location here). Please add topics in the PAD.


Yes. Our December meeting was cancelled. =(

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Senhas e Reconhecimento Biometrico

Ontem eu fui no shopping para comprar algumas coisas e aproveitei para passar no banco. Nessa agência, todos os terminais de auto atendimento possuem leitor biométrico (digital) e você só pode fazer qualquer transação após realizar seu cadastro biométrico. Neste post vou tentar lhe explicar porque você deveria evitar utilizar biometria como senha.

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More than “I can use your slides”

A few days ago a friend of mine, Greg Wilson, wrote about his Shuttleworth Foundation Fellowship Application. Here are some of my thoughts after read Greg’s application.

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