manhattanhenge

Because the concrete and steel canyons of New York City follow a grid that’s offset from true West by twenty-nine degrees, the sunset does not align with the summer and winter solstices but rather on dates spread out evenly around them, namely 31 May, 12 – 13 July and on 22 December, drifting slightly from year to year. Here is a picture courtesy of Space Weather from last evening taken from one of the best vantage points in the city, looking down 34th Street. Relatedly, when planning the layout of Milton Keynes in the early 1960s, developers consulted Greenwich Observatory to arrange the corridors of the town centre to frame the rising sun on Midsummer and sunset on Midwinter

7x7

fly me to the moons: an interactive atlas of the Solar System’s two hundred known natural satellites—via Maps Mania

favourite things: ten things beloved by US president John Quincy Adams

canopies: stunning forest photography from Manueli Bececco—see also

placă ceramică: an introduction to the incredible geometries of Romanian socialist era tilework

fine deerscald: a neural network brews up a cuppa—previously

sinistral teichopsia: antique illustrations of aura signatures (scintillating scotoma) that precede the onset of a migraine

republic of minerva: how an utopian micronation and sea-steading caused an international incident in the early 1970s

orrery: four thousand confirmed exoplanets charted in sight and sound

plainsong or novum organum

Via Kottke’s Quick Links, we are invited to remix a studio session of Gregorian chant, adding hum, reverb and more church bell as well as a number of preset modes and voices.  Although traditionally credited to Gregory I, the musical style is likely a synthesis of Roman and French choral customs, evolving into an elaborate, articulated system of chords and cadences as performers and composers became more keenly aware of the numeracy of song, though assuredly championed by the music-loving Pope. Notation and scale developed from this chant tradition, with the eventual eight modes being Dorian, Phrygian, Lydian and Mixolydian and their (hypo-) subordinates.

herd immunity

As the Chorus bemoans in Sophocles’ Antigone, “Nothing that is vast enters the life of mortals without a curse,” technology—impelled in part by not only the forces of capitalism and the need to maintain market and industry dominance but also by dint of our own inclination to laziness and decision-fatigue—has been an incredible support and source of solace and progress but likewise delivers a vehicle for remorse and helps us to bite off far more than we can chew. We are not good at self-assessment and postponing gratification. This latest edition of NPR’s TED Radio Hour explores the topic of digital manipulation and what lies behind the screen from several angles and is definitely food-for-thought.