Albener Pessoa

Submitted by: x0x0_24
Posted at: 2012-11-11 04:22:18
See full post and comment: http://9gag.com/gag/5814547

Submitted by: jokerrulz
Posted at: 2012-11-11 08:15:18
See full post and comment: http://9gag.com/gag/5815193

Submitted by: josephpoladian
Posted at: 2012-11-10 17:17:02
See full post and comment: http://9gag.com/gag/5810994

Submitted by: aliwatbeast
Posted at: 2012-11-03 14:18:09
See full post and comment: http://9gag.com/gag/5755596

Submitted by: alexthe0k
Posted at: 2012-11-10 15:24:32
See full post and comment: http://9gag.com/gag/5815883

Submitted by: rafapapa
Posted at: 2012-11-11 02:20:40
See full post and comment: http://9gag.com/gag/5814170

Submitted by: alexthe0k
Posted at: 2012-11-09 16:37:38
See full post and comment: http://9gag.com/gag/5815346

Submitted by: ncunha
Posted at: 2012-11-12 00:57:07
See full post and comment: http://9gag.com/gag/5821664

Submitted by: nhunter000
Posted at: 2012-11-10 09:36:06
See full post and comment: http://9gag.com/gag/5808401

Submitted by: matti1803gag
Posted at: 2012-11-11 18:58:32
See full post and comment: http://9gag.com/gag/5819150

Submitted by: milosdisic
Posted at: 2012-11-11 16:55:22
See full post and comment: http://9gag.com/gag/5818169

Submitted by: rainbowoops
Posted at: 2012-11-10 20:59:13
See full post and comment: http://9gag.com/gag/5822248

Submitted by: jkevx
Posted at: 2012-11-12 06:03:01
See full post and comment: http://9gag.com/gag/5822819

Submitted by: brwolfgang
Posted at: 2012-11-11 16:56:07
See full post and comment: http://9gag.com/gag/5818175

Submitted by: thepowerrangers
Posted at: 2012-11-11 10:11:13
See full post and comment: http://9gag.com/gag/5815617

Submitted by: wyblejm_12
Posted at: 2012-11-14 03:38:43
See full post and comment: http://9gag.com/gag/5837813

Submitted by: pirapo86
Posted at: 2012-11-14 02:38:42
See full post and comment: http://9gag.com/gag/5837584

Submitted by: davesincere
Posted at: 2012-11-14 00:28:38
See full post and comment: http://9gag.com/gag/5840888

• O que aconteceu com o verdadeiro Slumdog Millionaire;
• Erros que eu (e você!) fazemos no uso da econometria! Nota para mim mesmo: tenho que comentar o texto do B. Mueller no último Journal of Economic History;
• Eichengreen e O'Rourke - os dois caras que eu queria ser quando crescer- dizem: o multiplicador é 1,6;
• Sei lá o porquê, mas achei as fotos de alunos mundo afora sensacionais;
• Uma conferência sobre a Economia da Cerveja (HT Bruno Cruz);
• O pessoal do Censo deveria escolher o Olimpiy Kvitkin como padroeiro. Ele foi fuzilado porque o censo da Rússia de 1937 resultou em 6 milhões a menos de habitantes do que o Stalin estimou. Aqui e aqui. 
• Para finalizar, o grande Christopher Hitchens, bêbado, contando piadas. Gênio. (Pule para 7:35).

• Eu não disse que só teria links bacanas?

Mother fairy wrens teach their chicks passwords while they're still in their eggs to tell them from cuckoo impostors:

She kept 15 nests under constant audio surveillance, and discovered that fairy-wrens call to their unhatched chicks, using a two-second trill with 19 separate elements to it. They call once every four minutes while sitting on their eggs, starting on the 9th day of incubation and carrying on for a week until the eggs hatch.

When Colombelli-Negrel recorded the chicks after they hatched, she heard that their begging call included a single unique note lifted from mum's incubation call. This note varies a lot between different fairy-wren broods. It's their version of a surname, a signature of identity that unites a family. The females even teach these calls to their partners, by using them in their own begging calls when the males return to the nest with food.

These signature calls aren't innate. The chicks' calls more precisely matched those of their mother if she sang more frequently while she was incubating. And when Colombelli-Negrel swapped some eggs between different clutches, she found that the chicks made signature calls that matches those of their foster parents rather than those of their biological ones. It's something they learn while still in their eggs.

It's worth noting that this is primarily of use to the chicks' parents, so they know not to expend time and energy on the impostor cuckoo chick. Cuckoo chicks, as part of their evolutionary adaptation, kick the real chicks out of the nest, so they're lost in any case. It's the fact that the signal allows the parents to identify impostors and start a new brood that's of evolutionary advantage.

Additional articles.

I noticed this amongst the details of the Petraeus scandal:

Petraeus and Broadwell apparently used a trick, known to terrorists and teenagers alike, to conceal their email traffic, one of the law enforcement officials said.

Rather than transmitting emails to the other's inbox, they composed at least some messages and instead of transmitting them, left them in a draft folder or in an electronic "dropbox," the official said. Then the other person could log onto the same account and read the draft emails there. This avoids creating an email trail that is easier to trace.

I remember that the 9/11 terrorists did this.

No meu prédio tem uma senhora que costuma ficar andando de patins, segurando sacolas e falando sozinha numa língua desconhecida toda noite, ali entre as 20h e 22h, circulando exclusivamente entre a área do portão e da portaria, sempre apoiada na grade e olhando pra tudo e todos com cara de surpresa. No começo eu tentava achar justificativas racionais para aquele comportamento – a violência no rio, a dificuldade inerente ao processo da patinação, o fenômeno de pentecostes no qual o espírito santo desceu nos apóstolos e os caras saíram por aí falando outras línguas, o que pode parecer forçado pra você mas eu fiz crisma e eu também acreditava no teste de fidelidade do joão kléber, então qual o problema, certo? – mas com o passar o tempo e a repetição constante do ritual eu acabei aceitando a realidade de que, como bem considerou um amigo quando ciente do evento, se tratava apenas de uma tia esquisita pra cacete.

E tudo ia bem, naquele nível de estranhamento normal da vida cotidiana que eu sempre reservei pro amigo que fala sozinho, pro colega de trabalho que cuspia no carpete como se fosse grama e pra tia avó que me chamava por um nome de menina quando eu era pequeno – ainda que eu notasse que possivelmente havia ali um certo grau de ironia que eu não captava direito na época –  até uma noite em que, pegando uma correspondência na portaria, eu entreouvi um comentário dessa mesma vizinha dizendo que o cara do 103 era estranho porque chamava a própria namorada de darth vader no telefone. E o cara do 103, como vocês podem imaginar e minha namorada bem sabe, sou eu.

E isso me levou, é claro, não apenas a questionar o meu próprio nível de estranheza pessoal – se a mulher de meia idade que anda de patins sozinha com sacos de pão velho praguejando em esperanto na sua portaria te acha estranho, em que direção a sua vida está indo, amigo ? – quanto também a refletir sobre a minha própria visão do estranho que me cerca, seja entre amigos ou desconhecidos.

Afinal, se eu tenho uma excelente explicação para os dias em que chamei minha namorada de darth vader – ela estava com sono, respirava fundo demais no telefone, fazia um barulho engraçado, começamos a fazer piadas sobre isso, ela começou a construir uma estrela da morte no quintal com uns amigos – não teriam todas as pessoas que eu porventura considero incomuns, esquisitas ou apenas estranhas pra cacete também justificativas plenamente razoáveis para seus comportamentos e qualquer tipo de estranhamento da minha parte seria baseado apenas num amplo desconhecimento dos fatos? Não estaria o mendigo que eu considero falar sozinho apenas segurando um celular muito pequenininho? Não poderia a mulher dos patins estar praticando pra um campeonato de hóquei indoor gradeado com sacolas que meu futebolcentrismo e o descaso da sportv ainda me impede de conhecer? Não estaria aquele antigo colega de colégio que comia cascas de parede apenas ingerindo nutrientes essenciais para uma dieta específica? Não estaria o cara que cuspia no carpete aqui no escritório apenas tentando matar ácaros afogados? [no caso desse último item a resposta é não, ele apenas era meio doido e bem porco mesmo].

E diante disso tudo,ficam apenas duas grandes lições: a primeira é a de que devemos sempre tentar entender melhor o que nos cerca antes de definir nossas opiniões. O que para nós é insanidade, bizarrice ou um possível desvio psicótico pode ser na verdade uma coincidência, uma peculiaridade, ou talvez até mesmo um real desvio psicótico, não podemos dar mole. E a segunda é que nunca, nunca, nunca mesmo, devemos confiar em porteiros. Tipo, o cara super gente boa comigo mas quando a vizinha maluca chega ele se junta com ela pra falar mal de mim? Muito vacilo um lance desses.

[Armin] recently pulled out his Commodore 64 and looked back on the projects he did as a kid. The surprising thing is that we’re not talking quite as far in the past as you might image. He was 13 in 2002 and the family didn’t have a PC. But more than a decade before his father had purchased a C64 and [Armin] dug into the manual to teach himself how to code. This week he connected the old hardware to his video capture card to give us a demonstration on what he accomplished.

He had seen Windows 95 at the local computer club and figured why not program a clone of the software for the machine at hand? He called it Windows 105 (because that number is higher than 95) and worked out ways to mimic programs like DOS, Corel Draw, Notepad, and some of the programs from Microsoft Office. They didn’t include all the functionality of the real thing, but the look was there.

The story does have a happy ending. [Armin's] parents saw what he was doing and managed to pick up a PC for him to play with. Now he’s a professional programmer looking back on the formative years that got him there. We’ve embedded one of his demo videos after the break for your enjoyment.

Well this is how I always picture it. Here’s more shopping.

Someone should invent a thing that holds clothes.

There should be a bigger circle around all three of these with the label, Delicious.    -Raf

Download the high-res version here!

My essay at Cato Unbound, Why Online Education Works, goes beyond much of the recent discussion to give specific examples of how online teaching increases the productivity and quality of education. Here is one bit:

Dale Carnegie’s advice to “tell the audience what you’re going to say, say it; then tell them what you’ve said” makes sense for a live audience. If 20% of your students aren’t following the lecture, it’s natural to repeat some of the material so that you keep the whole audience involved and following your flow. But if you repeat whenever 20% of the audience doesn’t understand something, that means that 80% of the audience hear something twice that they only needed to hear once. Highly inefficient.

Carnegie’s advice is dead wrong for an online audience. Different medium, different messaging. In an online lecture it pays to be concise. Online, the student is in control and can choose when and what to repeat. The result is a big time-savings as students proceed as fast as their capabilities can take them, repeating only what they need to further their individual understanding.

More at the link including a discussion of how most of my teaching career happened in 15 minutes.

Responses from Siva Vaidhyanatha (Robertson Professor in Media Studies at the University of Virginia), Alan Ryan (former Warden of New College, Oxford) and Kevin Carey (Director of the education policy program at the New America Foundation) follow later this week.

Turns out the internet really is a series of pipes  tubes. Here is a picture from one of Google’s Data Centers.

The pipes are for running cooling water. Here is another data center:

More here.