Tribal war drove human evolution of aggression September 09, 2008 | User rating: 3.7 / 5 after 64 vote(s)
| User comments: 51
Wars are costly in terms of lives and resources – so why have we fought them throughout human history? In modern times, states may fight wars for a number of complex reasons. But in the past, most tribal wars were fought ... | |
![]() Online Dating: Where Technology and Evolution Collide June 26, 2008 | User rating: 3.6 / 5 after 30 vote(s)
| User comments: 10
When searching for a soul mate, you might think that the more options, the better. But the rise of technology – notably, the Internet – has thrown a wedge in that perception. | |
![]() Researchers stumped by drug addiction paradox April 16, 2008 | User rating: 4.4 / 5 after 107 vote(s)
| User comments: 28
From chocolate and caffeine to nicotine and cocaine, many of our most addictive foods and drugs come from plant toxins. Considering that plants originally developed these toxins to deter herbivorous predators, ... | |
![]() Can Athletic Uniform Color Determine Winners and Losers? February 25, 2008 | User rating: 3.4 / 5 after 27 vote(s)
| User comments: 1
It’s not uncommon for some athletes to have good luck charms, including the superstition that wearing certain colors may give them an edge on the competition. While some studies have found that, indeed, certain ... | |
![]() How We Localize Surround Sound January 09, 2008 | User rating: 4.3 / 5 after 32 vote(s)
| User comments: 2
You're walking down a busy street, with cars and buses driving past and bits of conversations reaching your ears, when you hear someone call your name. You turn about 60 degrees to your left and look up to ... | |
![]() Researchers Study Digg.com to Investigate Collective Attention November 16, 2007 | User rating: 3.6 / 5 after 26 vote(s)
| User comments: 1
In a world where millions of people are bombarded with thousands of messages daily, understanding how some messages become popular among large populations is vital for successful advertising, marketing and ... | |
![]() Shoppers' Spending Habits Follow Well-Known Economic Law October 26, 2007 | User rating: 4.2 / 5 after 73 vote(s)
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By analyzing 100 million receipts from 1,000 Japanese am/pm convenience stores, researchers have discovered a strong economic inequality among shoppers. Among their findings is that the top 25% and 2% of the ... | |
![]() 'Snowdrift' game tops 'Prisoner's Dilemma' in explaining cooperation October 09, 2007 | User rating: 4.3 / 5 after 62 vote(s)
| User comments: 2
When it comes to explaining the evolution of human cooperation, researchers have traditionally looked to the iterated Prisoner’s Dilemma (IPD) game as the paradigm. However, the observed degree of cooperation ... | |
![]() Study maps network of 7 million cell phone users May 14, 2007 | User rating: 4.4 / 5 after 45 vote(s)
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Scientists have constructed a map of a societal communication network based on the mobile phone usage of 7 million individuals during a span of 18 weeks. As the first study to have access to a large amount ... | |
![]() Can expert reasoning be taught? February 09, 2007 | User rating: 4.5 / 5 after 63 vote(s)
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In addition to mastering a large body of knowledge, successful researchers must acquire a host of high-level cognitive skills: critical thinking, "framing" a problem, ongoing evaluation of the solution as it ... | |
![]() For computer scientists exploring face recognition, the question is 'who?' February 07, 2007 | User rating: 4.5 / 5 after 40 vote(s)
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One of the most challenging tasks for computer vision researchers is to design a system that can automatically recognize individual faces. Humans, who can perform this task in as little as 50 milliseconds—almost ... | |
![]() 'Misdirected and unreasonable' acts of kindness can have significant consequences January 31, 2007 | User rating: 4.2 / 5 after 86 vote(s)
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There is a story about a guy who makes a point to be kind to his taxi driver, giving him a sincere thanks and a generous tip. The guy reasons that, if the taxi driver is then inspired to be kind to each of ... | |
![]() Analogy of cochlea as resonator could lead to artificial copies January 09, 2007 | User rating: 4.5 / 5 after 35 vote(s)
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In attempting to construct an artificial cochlea—and faced with limited knowledge of how the living chamber works—scientists might need to look no further than a simple electronic device: a surface acoustic ... | |
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