Ready for my trip to Aleppo

My consultant’s badge for my new client has this awesome legend on the back:

All Authorities are requested to cooperate in facilitating the movement and emergency mission of this bearer.

Well, “awesome” isn’t quite the word for it. “Humbling” is better: a reminder that some people work at a job where they don’t get to come home every night to a warm bed and a roof.

Some links: 64

Clearing the bookmarks for things that I had intended to post more fully about:

  • William J. Ripple and Robert L. Beschta report on trophic effects due to reintroduction of Gray Wolf (Canis lupus) into Yellowstone National Park. Some herbivore species are down, but aspens, cottonwoods, and willows are up. And, perhaps surprisingly, species that depend on woody plants like beavers are up, too.
  • The key to Broadway success might be in assembling a creative team with a mix of old hands and newcomers, suggests research by Guimerà et al. and summarized by Matt Golosinski for Northwestern’s KelloggInsight. The optimal number of team members has remained constant at seven since about 1930.
  • Vi Hart’s “Doodling in Math Class” videos (independent, pre-Khan Academy) are smart and delightful. Perhaps the centerpiece is her three-part demystification of the Fibonacci sequence.

    I am as far as possible from the only two other leaves in the universe!

  • Related: Alexander Mitsos and Corey Noone report that the optimal arrangement of mirrors in a solar energy collector follows the pattern of a Fermat spiral.

Northern Virginia owls: 2

As trip leader Leon likes to point out, owling has more in common with fishing than birding. Sometimes the conditions are right, and the birds just don’t show.

We did get a good look at the physical evidence of Barn Owls at Loudoun County’s Banshee Reeks Nature Preserve—feathers, numerous pellets, whitewash, and a roost/nest box installed at the top of the first abandoned farm silo on the property—but no luck looking at birds. Stakeout spots for Bubo and Otus species didn’t pan out. We’ll get ’em next time.

Good People

David Lindsay-Abaire puts aside the wacky characters and situations of some of his earlier work (Wonder of the World, Fuddy Meers) and plays it straighter in his new Good People. But his signature damaged people are still present to fuel this sober comedy set in Boston’s Southie neighborhood.

Margaret (Johanna Day) has spent her working life getting (and losing) a series of minimum-wage jobs, barely keeping a household together for her and her developmentally-disabled daughter Joyce. When Mike (Andrew Long), a boy she knew from high school 30 years earlier, returns to the city as a successful endocrinologist and with a very young bride, Margaret reluctantly approaches him with the thin hope of a hand up—a job as a receptionist, a referral to one of his well-to-do friends, anything. Precisely how well Mike and Margaret knew each other all those years before is the information, gradually given to us, that drives the plot.

In the second-act confrontation among Margaret, Mike, and his wife Kate (Francesca Choy-Kee), in Mike and Kate’s posh home in Chestnut Hill, everyone gets his say. In particular, Margaret makes a strong case that the line between success and failure is quite fine. Hard work will only get you so far; what’s needed is a lucky break or someone else’s sacrifice. And what should be sacrificed is not always obvious.

Yet there is a distance between us and the three characters, a separation—perhaps it is Lindsay-Abaire’s comic facility?—that makes it difficult for us to make a connection with them. And the epilogue (fraught with its own staging problems) casually imparts a key piece of information that many of us might miss.

I like the misdirection of an expensive-looking prop in a precarious spot that doesn’t end its stage time with a crash.

  • Good People, by David Lindsay-Abaire, directed by Jackie Maxwell, Arena Stage Kreeger Theater, Washington

Wall

You shouldn’t be a prisoner of your own ideas. Everyone gets into their own box and enunciates principles, if only in their own mind—you have your own constraints and your own structure that you think you’re following, and then you realize that what you’re saying is “I can do this, but I can’t do that.” And then at some point you say, “Well, why not?” and the answer is “Because I told myself I couldn’t.” If you keep telling yourself, “You can,” then you are liberated. If you’re totally constrained, all that’s left for you to do is break the mold. “Every wall is a door.”

—Sol LeWitt, BOMB Magazine, Fall 2003

Northern Virginia owls: 1

Saturday we visited sites in Arlington and Fairfax Counties looking for owls. The screech owls were a no-show at Rock Spring Park, a charming sliver of open space in North Arlington. We heard at least two Barred Owls (Strix varia) in Huntley Meadows Park; in the valley of Donaldson Run, we got good looks at a bird roosting in the crook of a sycamore— a spot that trip leader Leon Nawojchik had staked out. Leon says that Barred Owls will use nest boxes, boxes much larger than the ones we use for ducks. “About the size of a dorm room refrigerator” was the way he described it.

Silver Line progress report: 28

Karen Goff recaps the quarterly progress report for Silver Line construction, as presented by Pat Nowakowski. The contractor completion date for Phase 1 is set for 29 August, with the work at the West Falls Church yards to finish on 20 December. The new 8000-series rail cars will not start arriving until 2014; service will begin with the existing rolling stock.

The contract for Phase 2 is expected to be awarded this May.

Squeegees

Erik Piepenburg and photographer Sara Krulwich walk us through a theatrical blood effect.

Tristan Raines’s costumes, many of which are extensively bloodied in the show, will be thoroughly washed, a process [special-effects designer Waldo] Warshaw says is both “a science and art.” “With any show that involves blood there is a lot of respect that goes into the people who clean up,” he said.

Working for scale

John Markoff posts an interesting item about evaluating the success of MOOCs. (Aside: tell me again what the difference is bewteen an MOOC and distance learning?) There’s been a lot of chatter about the fraction of students registered for a course that actually complete all of ites requirements—numbers like 10% are being kicked around.

Markoff emphasizes the point that 10% of a class of 100,000 is nevertheless more than 100% of a class of 500 in a conventional freshman lecture course. And, as one of the panelists at the Frontiers in Education conference in October pointed out, there’s a lot of uncertainty about how many of that hypothetical 100,000 are serious registrants. When the course is free and there’s no cost to dropping out, a lot of students will sign up on a whim. Some registrants are even other instructors, checking out how their colleague handles this new environment.

Leta has participated in two classes offered by Coursera in the past year and has been very pleased with the results. Meanwhile, I’ve been fairly busy with traditionally structured classes:

  • Short-term training in proprietary software technology. Three days of slideware and coding exercises — what Andy Hunt calls sheep-dip training. Moderate value for the money: I did refer to the class workbook a couple of weeks ago for some code samples. Having the instructor on hard was useful when I got stuck.
  • Foreign language instruction from Fairfax County Public Schools. Classroom time with a native speaker, a workbook for writing exercises, and a DVD with lots of listening drills. Good value for the money.
  • The Natural History Field Studies program from Audubon Naturalist Society and Graduate School USA. Each course is different, but it’s usually a blend of reading, lecture, writing, giving presentations to the class—and field trips. Moderate to excellent value for the money, depending on a couple of factors, but every field trip has been worth it. Some of the courses are reviewed by an accrediting agency: these have been the most challenging and the most valuable.

Markoff considers Duolingo, a web site for language instruction that doesn’t precisely fit the MOOC model, but it is operating at that scale, with roughly a million users. I could see myself giving it a try.

I need seven credits to finish my NHFS certificate. I think MOOCs have a ways to go before they can capture the five-senses experience of a cordgrass salt marsh.

MOOCs are scaling up the evaluation of students by problem sets and short writing assignments. I wonder how they can deal with evaluating spoken contributions: speaking a foreign language, giving book reports and oral presentations.