Domingo, 4 de Agosto de 2013


"That says that systematically, the bigger the city, the more wages you can expect, the more educational institutions in principle, more cultural events, more patents are produced, it's more innovative and so on. Remarkably, all to the same degree. There was a universal exponent which turned out to be approximately 1.15 which translated to English says something like the following: If you double the size of a city from 50,000 to a hundred thousand, a million to two million, five million to ten million, it doesn't matter what, systematically, you get a roughly 15 percent increase in productivity, patents, the number of research institutions, wages and so on, and you get systematically a 15 percent saving in length of roads and general infrastructure.
One of the bad things about open-ended growth, growing faster than exponentially, is that open-ended growth eventually leads to collapse. It leads to collapse mathematically because of something called finite times singularity. You hit something that's called a singularity, which is a technical term, and it turns out as you approach this singularity, the system, if it reaches it, will collapse. You have to avoid that singularity in order to stop collapsing. It's great on the one hand that you have this open ended growth. But if you kept going, of course, it doesn't make any sense. Eventually, you run out of resources anyway, but you would collapse. And that's what the theory says.
The picture emerges. Companies are more like organisms. They grow and asymptote. Cities are open ended."


publicado por quaerendoinvenietis às 18:40
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Domingo, 7 de Outubro de 2012

Que maravilha!



"researchers at the MIT media lab in america have developed a new camera system that processes visual data at a rate of one trillion
frames per second. the technology is capable of detecting light travel, producing images that can track the individual movement
of light photons through slow motion video captures. with this, the device allows for a precise examination of its illumination trail
through space onto an object in fine detail. by integrating a one dimensional streak camera consisting of over five hundred sensors
and a titanium sapphire laser, simultaneous data capture records the information, where it is then processed into a video simulation."



publicado por quaerendoinvenietis às 10:59
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Domingo, 26 de Agosto de 2012

A mim fascina-me esta capacidade de estendermos a percepção cada vez mais, sempre mais.







publicado por quaerendoinvenietis às 12:59
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Sexta-feira, 5 de Agosto de 2011

Checking for bubbles



Many modern theories of fundamental physics predict that our universe is contained inside a bubble. In addition to our bubble, this `multiverse’ will contain others, each of which can be thought of as containing a universe. In the other 'pocket universes' the fundamental constants, and even the basic laws of nature, might be different.

Until now, nobody had been able to find a way to efficiently search for signs of bubble universe collisions - and therefore proof of the multiverse - in the CMB radiation, as the disc-like patterns in the radiation could be located anywhere in the sky. Additionally, physicists needed to be able to test whether any patterns they detected were the result of collisions or just random patterns in the noisy data.

A team of cosmologists based at University College London (UCL), Imperial College London and the Perimeter Institute for Theoretical Physics has now tackled this problem.

“It’s a very hard statistical and computational problem to search for all possible radii of the collision imprints at any possible place in the sky,” says Dr Hiranya Peiris, co-author of the research from the UCL Department of Physics and Astronomy. “But that’s what pricked my curiosity.”

The team ran simulations of what the sky would look like with and without cosmic collisions and developed a ground-breaking algorithm to determine which fit better with the wealth of CMB data from NASA’s Wilkinson Microwave Anisotropy Probe (WMAP). They put the first observational upper limit on how many bubble collision signatures there could be in the CMB sky.

Stephen Feeney, a PhD student at UCL who created the powerful computer algorithm to search for the tell-tale signatures of collisions between "bubble universes", and co-author of the research papers, said: "The work represents an opportunity to test a theory that is truly mind-blowing: that we exist within a vast multiverse, where other universes are constantly popping into existence."


publicado por quaerendoinvenietis às 23:34
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Sábado, 9 de Julho de 2011

The spirit in the gut

Immordino-Yang's hypothesis, borne out thus far by her research, is that the feeling or emotional reactions in the body may sometimes prompt introspection, and can ultimately promote moral choices and motivation to help or emulate others.

"These emotions are foundational for morality and social learning. They have the power to change the course of your very life," Immordino-Yang said.


"We are an intensely social species," she said. "Our very biology is a social one. For centuries poets have described so-called gut feelings during social emotions. Now we are uncovering the biological evidence."





publicado por quaerendoinvenietis às 14:50
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Segunda-feira, 27 de Junho de 2011

O infinito procede do infinito




"death, for a tiny sea creature, is not inevitable. Turritopsis nutricul, a jellyfish-like hydrazoan, is the only animal known to be potentially immortal.


The trick to Turritopsis‘ infinite do-overs is a process called transdifferentiation, which turns one type of cell into another. While other animals can undergo limited transdifferentiation to regenerate organs (salamandars can regrow limbs, for example), Turritopsi is the only one that can regenerate its entire body."



"Brahman expands by means of austerity and from It primal matter is produced; from matter, Prana; from Prana, mind; from mind, the elements; from the elements, the worlds; thence works and from the works, their immortal fruits."



publicado por quaerendoinvenietis às 22:50
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Domingo, 26 de Junho de 2011






With giant Saturn hanging in the blackness and sheltering Cassini from the sun's blinding glare, the spacecraft viewed the rings as never before, revealing previously unknown faint rings and even glimpsing its home world.


Small grains are pushed about by sunlight and electromagnetic forces. Hence, their distribution tells much about the local space environment.

publicado por quaerendoinvenietis às 08:36
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