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Physicists Tie Water Into Knots

Reporting in the journal Nature Physics, William Irvine and Dustin Kleckner, physicists at the University of Chicago, have created a knotted fluid vortex in the lab — a scientific first, they say. The knots resemble smoke rings — except these are made of water, and they're shaped like pretzels, not donuts. Understanding knottiness has extra-large applications, like understanding dynamics of the sun.
NPR

Metropolitan Opera To Drop Use Of Blackface-Style Makeup In 'Otello'

The Met says it is committed to 'colorblind casting' and that its production of Otello this fall will be the first without dark makeup since the opera was first seen at the company in 1891.
NPR

How Percy Shelley Stirred His Politics Into His Tea Cup

In 19th century Britain, keeping sugar out of tea became a political statement against slavery. The sugar boycott was no easy choice for the radical poet, who hated slavery but loved tea.
NPR

Just How Arbitrary Is Fox's 10-Person GOP Debate Cutoff?

The top 10 candidates, as determined by Fox's analysis of polls, will debate Thursday. But even when you average polls together, it's tough to tell the difference between the lower-ranked hopefuls.
NPR

Sexist Reactions To An Ad Spark #ILookLikeAnEngineer Campaign

After being surprised by online responses to her appearance in a recruiting ad, engineer Isis Wenger wanted to see if anyone else felt like they didn't fit a "cookie-cutter mold."

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