Beau Colburn does the roundup when he is not writing about iPad Apps for Macworld.

01. Monarch butterflies begin huge migration
“Adding to the mystique is that no one butterfly makes the complete round trip. It takes four or five generations of butterflies to complete, meaning the creatures have some mechanism that guides them to the same southern mating ground year after year.” (cbc)

02. Eerie Ukrainian Salt Mines House Convalescing Asthmatics (above)
“It might be one of the most unconventional hospital wards on Earth, except that technically it’s not on Earth: It’s hundreds of meters below the surface. For decades, the tunnels of the Solotvyno Salt Mine in Ukraine have hosted subterranean convalescents. Patients with various bronchial blockages, asthma and breathing problems are sent to the mines by the Solotvyno’s allergological hospital to suck up the curative air.” (wired)

03. Why Albums Are Released On Tuesdays In The U.S.
“Honestly, no one seems to know for sure. It’s more like a tradition with murky origins. And it happens on Tuesday in the U.S. only — in the U.K. and France release dates are Mondays, in Germany it’s Friday. So if Tuesday isn’t the universally accepted best day to offer new music to customers and there’s no law or grand business wisdom about it, why does everyone put out albums on the same day?” (npr)

04. 22 Incredible Photos of Faraway Places
“Chances are you already know Steve McCurry as the man who took one of the most iconic photos of our time. It was of a 12-year-old Afghan refugee girl who’s piercing green eyes told us her harrowing story. The image itself was named “the most recognized photograph” in the history of the National Geographic magazine and her face became famous as the cover photograph on their June 1985 issue. Beyond just that one photo, McCurry has shot over a million images spanning 35 years.” (mymodernmet)

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