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Astaire Unwound (Ceiling Dance from “Royal Wedding”)

My high school physics teacher, Admiral Peebles, showed us episodes of this nerdy, awesome science video, which demonstrated what various common motions (a falling ball, a rolling ball) look like from fixed and moving frames of reference. The 1969 movie 2001: A Space Odyssey featured a huge rotating set, a realistic representation of artificial gravity in the interior of a space ship. I pored over stills from this scene a few years…

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A Dance Mom Gets Schooled by a Ballet Mistress Who Can Write

Avoid trying to publicly shame a ballet mistress who can write.

This morning, someone pseudonymously spammed the parent email list at my daughter’s ballet school, with a scolding complaint about a delayed cast list. It read, in part: “We pay our fees on time…. We received the email to donate to the school’s fundraiser this week on time. But no cast List. This is a teachable moment to demonstrate that being on time, especially when a promise is involved, is important.”

The school’s response, posted about a half hour later, ended thus: “Emailing using an address we can not identify and failing to sign your email shows a lack of conviction. Failing to understand that it is a relatively easy thing to discover your identity through your IP address is another indication that your action was not thought through. If the lessons you wanted to teach here were your own ignorance, arrogance and cowardice, you’ve succeeded.”

The whole response is worth a sincere, rousing “slow clap”.

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Boston Bombing Survivor Dances Onstage for First Time

Technology and artistry combine in this touching story. After dance teacher Adrianne Haslet-Davis lost part of her leg in the Boston Marathon bombing last year, she made a promise to herself that she would perform again. So, Haslet-Davis spent the next year of her life working with Hugh Herr, who outfitted her with a revolutionary prosthetic limb, to relearn the basic dance moves that once came naturally to her. Onstage…

‘Inappropriate’ dance moves lead to calls for student lessons in Peters

Mr. Merrell said the students told him they didn’t know how to dance and got their moves from MTV. He asked administrators to survey students to see if they would be interested in dance classes. Mr. Merrell said he envisioned several 45-minute classes on weekends for students who are interested. But, several other members strongly objected, saying that what Mr. Merrell considers inappropriate is just a generational difference. “I think…