vurtual:

Puffy patterns of mammatus clouds

Out of all the cloud types, only one kind derives from the Latin term for “udder”: Mammatus clouds. And when you see them, this meteorological name makes a whole lot of sense. They billow downwards in a pattern of distinctive lumpiness that peg them as fascinating subjects to photograph. Keep tuned in to weather reports for thunderstorms, because these puffy clouds usually indicate intense storms to come and you might find a rare opportunity to capture them.

Photos from Stormlover87, Jon Wisniewski, finepixtrix, Rodtas, and Alexander Photography.

chasingwanderlust:

3.14159265358979323846… in the Sky

Earlier today, I got to witness Zero1 Biennial’s Pi in the Sky, the first 1,000 numbers of pi in skywriting in a loop around the San Francisco Bay Area. It was really neat; it looked like the dot-matrix digits just appeared out of the air because I couldn’t see the planes.

Unfortunately, I didn’t capture any decent photos. The one I posted was taken by Jim Stone, whose Potrero Hill location was the closest (of the ones on the Pi in the Sky Facebook page) to what I saw from my workplace’s rooftop.