Facebook, Yahoo to test 'six degrees of separation'

Yahoo Inc. and Facebook Inc. are joining forces to test an iconic 1960s-era social experiment that showed there are just six degrees of separation between most people on the planet.

Why do pivotal cultural differences among countries exist?

In today's world, conflicts and misunderstandings frequently arise between those who are from more restrictive cultures and those from less restrictive ones. Now, a new international study led by the University of Maryland ...

Large study shows females are equal to males in math skills

(PhysOrg.com) -- The mathematical skills of boys and girls, as well as men and women, are substantially equal, according to a new examination of existing studies in the current online edition of journal Psychological Bulletin.

If you're happy, then we know it: Scientists build 'hedonometer'

In 1881, the optimistic Irish economist Francis Edgeworth imagined a strange device called a "hedonimeter" that would be capable of "continually registering the height of pleasure experienced by an individual." In other words, ...

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