The Null Device
Want your kids to turn out smart? Don't worry about sending them to the most expensive intensive-cramming preschools, but do make sure they grow up in a house full of books. A study has found that the amount of books in a household is correlated with how many years of schooling the children in that household complete. Of course, correlation is not causation (it could be, for example, that people inclined to academic achievement for some other, immutable, reason are inclined to own books); however, another study found that giving low-income children 12 books of their own choice on the first day of summer vacation is successful in arresting the process by which they would otherwise fall behind their more privileged peers.
Of course, you don't have to buy a book to read it, but the act of giving someone a book of his or her own has an undeniable, totemic power. As much as we love libraries, there is something in possessing a book that's significantly different from borrowing it, especially for a child. You can write your name in it and keep it always. It transforms you into the kind of person who owns books, a member of the club, as well as part of a family that has them around the house. You're no longer just a visitor to the realm of the written word: You've got a passport.Meanwhile, another study has shown that the children of lesbian couples do better than average in schools.
Data visualisation of the day: Locals and Tourists. Location data was harvested from geotagged photos on Flickr and plotted on maps; the points were colour-coded: blue if the poster was a local (i.e., had been in the city for more than a period of time), red if they were tourists (recent visitors with no prior history), and yellow if it was ambiguous. Here, for example, is London, with the Thames and the West End ablaze with red and the East End blue (which means that there are fewer tourists but still plenty of photographers, think Hackney art hipsters and/or kids with iPhones):Paris; tourists flock to the obvious parts (the Eiffel Tower, the Champs-Elysees, the Seine and the Île-de-Cité), whereas the locals who tend to post photos gravitate to the east, around the Bastille and such; the affluent, conservative southern arrondisements are largely a wasteland, photographically at least. In Berlin, meanwhile, tourists fill the city's broad central boulevards, the Tiergarten and Alexanderplatz and Karl-Marx-Allee, and visit the East Side Gallery, but there's a lot of local photography happening around Kreuzberg/Neukolln.
In fact, one could use the frequency of non-tourist photography for an area as a predictor of cultural vibrancy. Areas where a lot of photos are taken by people who live in the same city and not by tourists could be the kinds of broad areas where local scenes form, and the kinds of people who engage in cultural activity beyond passive consumption (sometimes referred to as "hipsters") are more likely to be found. This is borne out by other maps: Melbourne (there are specks of blue around the inner north, while the sprawling suburbs are largely empty). In New York, meanwhile, Manhattan glows with tourist activity but Brooklyn is veined with blue.
Of course, the amount of blue space on these maps is considerably larger than any nexus of cultural activity would be; it'd cover the areas where events take place, where the participants live and work, and spaces in between. However, it does make one wonder whether one could data-mine the buzz of a city by correlating Flickr photo geodata or other indices of participation with other data; possibly transport routes?