sexta-feira, 17 de janeiro de 2014

Visualização do Universo

A "Astronomy Picture of The Day" da NASA de 12/01/2014 é na realidade uma grande apresentação gráfica (no estilo do "Prezi") que coloca o universo - em termos físicos - organizado numa escala de tamanho. Isso me lembra do Martin G. Channon, que tem uma projeto parecido, mas ele pretende apresentar o Universo em termos "epistemológicos", isto é, não só o universo material, mas cultural.


The Scale of the Universe - Interactive 
Flash Animation Credit & Copyright: Cary & Michael Huang
Explanation: What does the universe look like on small scales? On large scales? Humanity is discovering that the universe is a very different place on every proportion that has been explored. For example, so far as we know, every tiny proton is exactly the same, but every huge galaxy is different. On more familiar scales, a small glass table top to a human is a vast plane of strange smoothness to a dust mite -- possibly speckled with cell boulders. Not all scale lengths are well explored -- what happens to the smallest mist droplets you sneeze, for example, is a topic of active research -- and possibly useful to know to help stop the spread of disease. Theabove interactive flash animation, a modern version of the classic video Powers of Ten, is a new window to many of the known scales of our universe. By moving the scroll bar across the bottom, you can explore a diversity of sizes, while clicking on different items will bring up descriptive information.

Link: http://apod.nasa.gov/apod/ap140112.html


*mais sobre o project cosmology de Channon: aqui; aqui e aqui também

sexta-feira, 10 de janeiro de 2014

Dirk Lewandowski: Why We Need an Independent Index of the Web

Tenho lido alguns artigos desse autor e achado bem interessante...

Abaixo vai uma entrevista dele sobre Search Engines que achei no site do Institute of network cultures

How can we create real alternative search engines? German professor Dirk Lewandowski spoke as third speaker in the session ‘Google Domination’. He argues that we need an independent index of the web. “We don’t need publicly funded search engines. Instead, we need publicly funded search index.” Why? He argues that with an index we can do much more than just web search.

Short interview with Dirk Lewandowski from network cultures on Vimeo.

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