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19 Nov 00:15

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18 Nov 15:20

[via]





[via]

18 Nov 07:14

lord-kitschener: halcyon-ia: break the rules no gods no kings...

Igor Santos

Se pudesse falar, estaria gritando SOCORRO ME TIREM DAQUI ESTOU PRESO NUM LOOP INFINITO!



lord-kitschener:

halcyon-ia:

break the rules

no gods no kings no masters

18 Nov 00:00

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17 Nov 21:27

(via peterfromtexas)

18 Nov 21:08

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19 Nov 21:00

sachinteng: 'Athletic Genius' for NAUTILUS Magazine Exploring...











sachinteng:

'Athletic Genius' for NAUTILUS Magazine

Exploring cerebral prowess and which areas of the brain make great athletes!

Thanks to AD Len Small for giving me the chance to work on this. Check out the article at Nautilus here

17 Nov 08:37

Você sabia que existe uma passagem volta ao mundo?

É isso mesmo que você entendeu. A passagem volta ao mundo permite que você faça a volta no globo com um único bilhete, fazendo várias paradas pelo caminho. Pra quem sempre sonhou em fazer uma volta ao mundo ela pode ser uma boa solução e sai bem mais em conta do que você imagina.

O que é a passagem?

A passagem é chamada de RTW (Round the World) e pode ser composta por 16 trechos, saindo e retornando ao mesmo ponto, fazendo a volta completa do globo. Atualmente existem 3 alianças que oferecem esse tipo de passagem e é claro que algumas regras devem ser seguidas.

Divulgação

ViraVolta, Volta ao Mundo, Viagem longo prazo, Passagem volta ao mundo

Conheça as principais regras:

  • O viajante precisa fazer a volta no globo em um único sentido
  • A viagem deve durar de 10 dias a 1 ano
  • O número de trecho voados deve ser entre 3 e 16
  • Existe um número limite de trechos a serem voados em cada zona territorial da aliança
  • Você pode desembarcar em um país e embarcar em um país diferente no próximo vôo. Isso se chama deslocamento terrestre, mas conta como trecho ou milha voados
  • Voos com conexão também contam como trecho voado ou para contagem de milhas
  • É possível alterar a data dos vôos sem nenhuma taxa
  • É possível alterar trechos da passagem conforme taxas estipulada pela aliança

Quanto custa?

É claro que isso vai depender muito do seu roteiro, do número de trechos e da aliança aérea pesquisada. Se o seu roteiro passa por aeroportos mais populares ou se ele usar poucos trechos, vai sair mais em conta. É possível encontrar uma passagem RTW de 16 trechos por 5 mil dólares (=12.800 reais). Parece caro? Se você considerar que que um vôo de ida e volta para a Tailândia custa cerca de 4 mil reais já não parece tão caro assim. Se você dividir esse custo da RTW por 16 trechos, cada trecho custaria 800 reais.

ONDE PESQUISAR?

Atualmente 3 alianças aéreas oferecem essa passagem: One World, Star Alliance e Sky Team. No site dessas empresas é possível fazer simulações das passagens de volta ao mundo.

Para saber mais detalhes sobre essa passagem clique aqui.

O Projeto ViraVolta é um site especializado em viagens de longo prazo e passa todas as dicas para quem deseja realizar o sonho de viajar o mundo. Se você tem medo ou acha impossível, não desanime. Conheça as nossas dicas e quem sabe podemos te inspirar.

Conheça o projeto e fique conectado:

projetoviravolta.com
facebook.com/projetoviravolta
pinterest.com/viravolta/
youtube.com/user/projetoviravolta
twitter.com/_ViraVolta

Rede Catraca

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15 Nov 19:44

Stunning Mosque In Iran Becomes A Magnificent Kaleidoscope When The Sun Rises

Igor Santos

Jogo de PC dos anos 90 quando você tirava o disquete entre uma fase e outra.

The exterior of the Nasir al-Mulk Mosque in Shiraz, Iran, while decorative, hints only vaguely at the colorful splendour held within. When you step inside, especially if it’s early in the morning, the mosque truly becomes a vivid and glorious kaleidoscope.

The Nasir al-Mulk Mosque is heavily decorated with stained glass – something very rare in mosque architecture. It was built during the Qājār era by the order of Mirza Hasan Ali Nasir al Molk in 1888. The mosque is famous for its extensive usage of stained glass and the divine feast of colours that it casts with the help of the morning sun. The mosque is often referred to as the “Pink Mosque” due to the dominance of this colour in the intricate and colorful tiles decorating its arches and niches.

If you ever have a chance, go visit this majestic, one-of-a-kind mosque and don’t miss the earliest bus – you won’t regret it!

(via)

Image credits: Mohammad Reza Domiri Ganji

Image credits: Dav Wong

Image credits: Amin Abedini

Image credits: Marinela T. Gondii

Image credits: Lucie Debelkova

Image credits: Amin Abedini

Image credits: my2200

Image credits: Amin Abedini

Image credits: Abbas Arabzadeh

Image credits: my2200

Image credits: Amin Abedini

Image credits: Dav Wong

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14 Nov 13:55

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13 Nov 13:00

Science Can Bring About Cruelty

09 Nov 06:28

I always knew I was super smart 😎 Tag your smart friends...

Igor Santos

er...



I always knew I was super smart 😎 Tag your smart friends too!
Follow my smart bro @8factapp !

14 Nov 17:00

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11 Nov 03:29

stop it human! [via]



stop it human!

[via]

11 Nov 05:46

I’m your mommy now. #9gag



I’m your mommy now. #9gag

11 Nov 14:30

What is This Stuff? Here's a Hint: Monday Mornings Would Be Nearly Impossible Without It!

What is This Stuff? Here's a Hint: Monday Mornings Would Be Nearly Impossible Without It!

It's none other than your favorite pick-me-up: caffeine! Raw caffeine powder mush freshly extracted from coffee beans. In it's pure form, caffeine is a bitter white powder that looks a lot like sugar.

Submitted by:

12 Nov 14:22

Internet has destroyed my mind… #9gag



Internet has destroyed my mind… #9gag

13 Nov 06:19

Cos I’m fabulous. #9gag



Cos I’m fabulous. #9gag

14 Nov 05:29

Behind every strong woman, there is a romantic dude. #9gag



Behind every strong woman, there is a romantic dude. #9gag

13 Nov 02:27

deadliftsandredlips: lifeweightsandpavement: Way too powerful...



deadliftsandredlips:

lifeweightsandpavement:

Way too powerful an image here…

This speaks volume about the standards expected in society on how one should look. And how young we begin to be bombarded with these standards…

Picture by Meg Gaiger

I can’t remember the amount of times of cried while grabbing at my fat and wishing I could cut it off. It started when I was eight. This picture and the meaning behind it is so, so important.

12 Nov 13:30

Christmas Came Early This Year!

Igor Santos

Bukkakkandles.

13 Nov 17:30

What is This Musical Treachery?

13 Nov 18:07

The mathematician who proved why hipsters all look alike

Jonathan Touboul is a mathematician and a neuroscientist. He holds a PhD in math from France’s prestigious École Polytechnique, where he won a prize for his thesis on how to simulate neurons in the brain. He publishes papers with titles like “Pulsatile localized dynamics in delayed neural-field equations in arbitrary dimension” and “The propagation of chaos in neural fields.”

Recently, though, Touboul has been thinking about hipsters. Specifically, why hipsters all seem to dress alike. In his line of work, there are neurons that also behave like hipsters. They fire when every neuron around them is quiet; or they fall silent when every neuron around them is chattering.

Because he is a mathematician, Touboul began to look for a way to explore this idea using equations. In other words, he constructed a mathematical model. His key insight is that people (and neurons) do not instantly perceive what is mainstream. There’s a delay. And in situations where the delay is large enough, the contrarians can inadvertently synchronize with each other.

“In wanting to oppose the trends, there actually emerges some sort of hipster loop,” Touboul said.

A day before Halloween, Touboul put a draft of his paper on the arXiv, calling it “The hipster effect: When anticonformists all look the same.”

The paper was catnip, of course, for the hipster blogosphere, which loves all objets highbrow/lowbrow, the more meta the better. But this is a whimsical analogy for a serious topic. Widespread synchronicity in the brain is considered harmful, Touboul noted. It’s a feature of epileptic seizures, which can occur when groups of neurons fire together in abnormal ways.

To help us better understand his mathematical argument, Touboul walked us through parts of his paper, which he is submitting to a physics journal.

Trying to unpack one of these models can be like describing a work of Cubism: The art is lost. To his credit, Touboul keeps the math in his paper light and graceful. A background in nonlinear dynamics certainly helps, but with a sprinkle of imagination, anyone can grasp the story that his equations tell.

Touboul begins by envisioning a world where people choose between just two styles: Call them punk or normcore. There are two kinds of people in this world: those who like to go with the flow, and those who do the opposite — hipsters, in other words. Over time, people perceive what the mainstream trend is, and either align themselves with it or oppose it.

Here are some examples with a population of three conformists and one hipster. How the world evolves over time depends on who starts off in the majority and who starts off in the minority. Take white to be normcore, and black to be punk (obviously).


In example A1, the two conformists start off with the same style; the nonconformist is different. This world is stable. The conformists are happy because they are the majority. The hipster is happy because she’s in the minority. People stick with their current style.

In example A2, it takes some shuffling around before the world settles down. Two of the conformists start off normcore; the other conformist is punk; the hipster is also punk. From the perspective of each normcore conformist, the consensus seems to be punk (they don’t count themselves). They both decide to be punk in the next turn.

Eventually, after a few more switches, the system settles into stability: three punk conformists, and one normcore hipster.

What if this world contained equal numbers of conformists and hipsters? No matter how the population starts out, it will end up in some kind of cycle, as the conformists try to catch up to the hipsters, and the hipsters try to differentiate themselves from the conformists.


Now the real fun begins. Let’s look at a world with just hipsters, and let’s make the population bigger. Touboul lent us some of his simulation code, so we can see what happens with 5,000 hipsters. We randomly assign each to be either punk or normcore. The result is a field of noise. The hipsters cannot reach a consensus; they fight vigorously to be in the minority, but collectively, they act like a dog trying to chase its tail. (Touboul’s model, by the way, includes bit of randomness at each turn — a dash of realism.)


Here comes the crucial twist. In all of the examples so far, we assumed that everyone had instant knowledge of what everyone else was wearing. People knew exactly what the mainstream trend was. But in reality, there are always delays. It takes time for a signal to propagate across a brain; likewise it takes time for hipsters to read Complex or Pitchfork or whatever in order to figure out how to be contrarian.

So Touboul included a delay into the model. People would base their decisions not on the current state of affairs, but on the state of affairs some number of turns prior.

What Touboul noticed is that if you increase the delay factor past a certain point, something amazing happens. Out of what appears to be random noise, a pattern emerges. All of the hipsters start to synchronize, and they start to oscillate in unison.

Here is an example of what happens when the delay gets longer and and longer:


As Touboul described it:

Indeed, a random imbalance will be detected after some time and all anticonformist individuals will tend to disalign to this trend, regardless of the fact that an increasing proportion of them do and therefore yield a clear bias towards the opposite trend. This will be detected at later times, leading to a reciprocal switch, and these oscillations will periodically repeat. Despite their efforts, at all times, anticonformists fail being disaligned with the majority.

Translation: The hipsters are still recoiling from the mainstream, but each holds an outdated concept of what the mainstream is. Because they are slow to react, they end up all looking alike, and all changing fashions at the same time. (Irony of ironies!)

Here is where you might object that Touboul’s model oversimplifies something. In real life, there are a million ways to be nonconformist. You can be goth; you can be preppy; you can be grunge. Touboul’s model doesn’t quite explain the current hipster obsession with scraggly beards and undercuts. He admits as much. “The brain is more complex than the model I looked at, and of course hipsters are more complex,” he said.

But the beauty of Touboul’s model, which he sketches out in a meager four pages, lies in its succinctness. He doesn’t aim to explain everything. His goal is to express a single idea about how nonconformists might synchronize, and he does so in the most concise way possible. Touboul belongs to a breed of theoreticians who see themselves as storytellers working in numbers. They value tight pacing; a plot that’s boiled down to its essence.

Many economic theorists subscribe to the same view. Economic models often fall victim to the critique that they are insufficiently realistic. But to complain that a model does not reflect all facets of reality misses the point of model-making, which is to create tools for people to understand complex ideas. This is true whether the model is made out of wood, or out of equations.

“That’s the real role of mathematics,” Touboul said. “To abstract things. To see what is really important.”

11 Nov 23:07

What you and your 21 year old friends look like to people in...



What you and your 21 year old friends look like to people in their 30s. #9gag

11 Nov 04:03

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10 Nov 17:00

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09 Nov 21:00

nevver: UC Anacleto Angelini Santiago, Cile









nevver:

UC Anacleto Angelini Santiago, Cile

08 Nov 17:00

thefrogman: Photos by Andrew Milligan/PA Wire [dailymail |...

Igor Santos

Quando o modelo estoura.



















thefrogman:

Photos by Andrew Milligan/PA Wire

[dailymail | denverpost] [h/t: nubbsgalore]

20 Oct 20:27

Simple CPU

by Jason Kottke

Very quickly, here's how a computer works at the simplest level.

D Latch

Want to see how computers store data? This next device is called a 'D-Latch'. It holds a binary bit. The top switch is the value to be stored, the bottom switch enables storage. Eight of these devices can be used to store a byte in memory.

Tags: computing
10 Nov 21:45

That Will Ensure Your Students Aren't Late.