Preços de táxi

World Taximeter gives you an estimate of the cost of a taxi ride in cities around the globe. Currently we support Amsterdam, Barcelona, Berlin, Boston, Chicago, Dublin, London, Los Angeles, Madrid, New York, Paris, Prague, Rome, San Francisco, Sydney, and Toronto.

Anti-tuberculose

xdrtb.org: Spread the story. Stop the disease.
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Ignorância vs. conhecimento

The Expansion of Ignorance: Thus even though our knowledge is expanding exponentially, our questions are expanding exponentially faster. And as mathematicians will tell you, the widening gap between two exponential curves is itself an exponential curve. That gap between questions and answers is our ignorance, and it is growing exponentialy. In other words, science is a method that chiefly expands our ignorance rather than our knowledge.

We have no reason to expect this to reverse in the future. The more disruptive a technology and tool is, the more disruptive the questions it will breed. We can expect future technologies such as artificial intelligence, controlled fusion, and quantum computing (to name a few on the near horizon) to unleash a barrage of thousands of new huge questions – questions we could have never even thought to ask before. In fact, it’s a safe bet that we have not asked our biggest questions yet.

Or, to put it another way, we have not yet reached our maximum ignorance.

Ilusão óptica

'Eye flicker' explains optical illusion: Tiny eye movements may be responsible for the optical illusion of a famous artwork. The discovery hints at how we are fooled by other illusions too.

The painting, called 'Enigma', is a visual illusion created by artist Isia Leviant in 1981. It consists of concentric circles and radiating black and white lines. When looking at Enigma (see image), most people see what appears to be a flowing movement around the circles.

Edição de imagens online

SumoPaint

Produtores e consumidores

Clay Shirky tells AOP conference: ‘don’t believe in the myth of quality’: “If we move towards media that lets people create and share we can attract lots and lots of people. And that’s what happening.”

Para ver

Vewd is a documentary photography magazine continuing the tradition of storytelling through a visual medium.

Renascimento

Life magazine reborn as online photo archive: Life, the photojournalism magazine that told the story of the 20th century in pictures before it closed in 2000, is to gain a new lease of life on the web as a massive photo archive thanks to a deal with Getty Images.

Crise também nos gratuitos

Financial crisis threatening world's free newspapers, experts say: The global financial crisis poses a major threat to free newspapers worldwide, experts and industry officials said at the first-ever world conference of the industry on Tuesday.

The sector, which is made up of 230 free newspapers in 58 nations with a total daily distribution of 43 million copies, is "extremely vulnerable to a recession", said University of Amsterdam media expert Piet Bakker.

"It will be particularly hard for free newspapers with no operations in other sectors, who are not part of companies with other activities. If you only have advertising, you really have a big problem," he said.

Outubro vermelho

DEAR COMRADE! I am glad to welcome you to this modest site. I have tried to assemble here a small legacy of songs left from the Soviet era. All of them were at once widely known and popular in the cities and towns of our glorious Motherland.