Sen. Margaret Chase Smith, R-Maine, addresses the American Society of Newspaper Editors in Washington on April 18, 1964.

Henry Burroughs/AP

Sen. Margaret Chase Smith, R-Maine, addresses the American Society of Newspaper Editors in Washington on April 18, 1964.

How Margaret Chase Smith stood up to Joseph McCarthy — and won

When the US senator from Maine stood up to McCarthy, she set in motion his eventual political demise.By Ted Widmer

Uncommon Knowledge

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Surprising insights from the social sciences.

Brainiac

//c.o0bg.com/rf/image_90x90/Boston/2011-2020/2016/02/11/BostonGlobe.com/Ideas/Images/0214webbrainiac.jpg Bostonians may be hard-wired to hate City Hall Plaza

How the field of “biosensing” could change the way we design buildings.