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These seven maps and charts, visualized by The Washington Post, will help you understand how diverse other parts of the world are in terms of languages. 1. Some continents have more languages than others Not all continents are equally diverse in the number of spoken languages.

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Last summer, Apple surprised almost everyone at WWDC with the announcement of Swift, a new programming language for iOS and Mac development. The language feels like something Apple would invent. Like several of the languages currently popular in web development, it has a concise, readable syntax that's easier to pick up than Apple's older language, Objective-C.

Infants can make sense of complex social situations, taking into account who knows what about whom, according to research published in Psychological Science, a journal of the Association for Psychological Science. "Our findings show that 13-month-olds can make sense of social situations using their understanding about others' minds and social evaluation skills," says psychological scientists and study authors You-jung Choi and Yuyan Luo of the University of Missouri.