//c.o0bg.com/rf/image_90x90/Boston/2011-2020/2014/07/16/BostonGlobe.com/Ideas/Images/Teddy5.jpg Travel advice from Teddy Roosevelt’s uncle

Leaving home is all about the people, not the scenery.

Uncommon Knowledge

People with a sweet tooth don’t want to wait

And more surprising insights from the social sciences.

Brainiac

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How airlines decide what airspace to avoid — and what went wrong in the case of the Malaysian Airlines Flight 17.

Brainiac

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And more recent highlights from the Ideas blog.