Saturday, September 20, 2014

"Legendary curmudgeon gone soft, embraces infant."

In my defense: she's a cute kid, and weighs less than my cat.
Thursday, September 18, 2014

3 days and several Excel spreadsheets later, I've just cracked the "locker problem":

"A new high school has just been completed. There are 1,000 lockers in the school and they are numbered from 1 through 1,000. During recess (remember, this is a fictional problem), the students decide to try an experiment. When recess is over, each student walks into the school one at a time. The first student opens all of the locker doors. The second student closes all of the locker doors with even numbers. The third student changes all of the locker doors that are multiples of 3 (closing lockers that are open, and opening lockers that are closed). The fourth student changes the position of all locker doors numbered with multiples of four and so on. After 1,000 students have entered the school, how many locker doors will be open, which ones, and why?"

Answer: 31 open, 969 closed. 

The open locker #s correspond to perfect squares: #1, #4, #9, #16, #25, #36 etc.

Perfect squares factor oddly, eg., 25 = 1, 5, 25.  Any odd # of factors reduces to = open, closed, open.

Everything else factors evenly, eg., 10 = 1, 2, 5, 10.  Any even # of factors reduces to = open, closed.
Wednesday, September 17, 2014

Tuesday, September 16, 2014

Recharging in the sun, Crown Mountain.
"On the 6th floor of the VPL we absorb flickering fluorescents instead of a natural light spreading through a window. Meanwhile carpet tiles, rather than the thin clean brush strokes, give the impression of a reflective surface. The painting feels like an anticipation for the empty filing cabinets and small paper scraps that will be removed. The space will soon be an isolated endnote to an autobiography of diffidence. A landscape of emptiness, intrinsically longing for something unspecified, a conceptual ideal: nostalgic, uncanny, eviction."
Monday, September 15, 2014
Fit 29-year-old who's never climbed with me before passes judgment on my skills: "Patience of dust, reflexes of a cat."
Sunday, September 14, 2014
A day of scrambling in the hills.  11+ km walk-in, followed by a 4-hour grovel up a moraine; up a chimney full of chockstones; and, finally, 4th-classing it up some of the finest slabs on the North Shore to the summit of Crown Mountain, followed by a two and a half hour up-and-down bash back to the top of Grouse, and civilization, right at sunset.  About 1500m. of cumulative elevation gain.

Photos of the route, not mine.

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