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Who knew equations and graphs could guide you in your love life? Mathematician Hannah Fry does — and gives a few formulas for finding The One.

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Figuring out how to walk from A to B is easy in the age of online mapping tools. Just plug in two addresses and off you go. But sometimes getting to a place as quickly as possible isn’t the priority. Take a look at a project in which researchers tried to figure out a city’s “happy” routes.

When I googled “English major who taught herself calculus,” Google gave me the result I wanted — plus a most unhelpful suggestion.

Roboticist Raffaello D’Andrea describes his work on three new autonomous flying machines, including one that “knows” what to do when it loses a propeller. (Hint: it doesn’t crash.)

Ok, maybe it won’t. Current winner is Upworthy, a site that has soared to Internet domination in quick smart time. We talked to founder Eli Pariser about his socially-oriented mission, why he thinks it’s so important to pay attention to issues of control in the Internet-dominated era — and how he’d really like to get his hands on Facebook’s sharing algorithm.

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Fotokite is a drone-on-a-string. The unmanned aerial vehicle can be guided simply by the tug of a string. Inventor Sergei Lupashin explains how it works.