0.6 Percentage of 3,116 respondents (or, about 18) who answered "Yes" to the Student Voices Philadelphia online poll question, "Do you think single-sex schools will help improve the Philadelphia School District?" The unscientific poll was conducted from March 3-23.

3 Number of award categories for abstracts for the 28th annual meeting of the American Society for Bone and Mineral Research at the Pennsylvania Convention Center Sept. 15-19. Not like you need more reasons to go, but here's part of the pitch from their Web site: "You can feast on popular Philadelphia 'street food'—like cheese-steak sandwiches—or savor the cuisine of your choice at what critics call a 'restaurant renaissance.'" Abstracts are due by April 19.

8 Number of games by which I had predicted the Phillies' Jimmy Rollins would fall short of Joe DiMaggio's 56-game hitting streak. I made this prediction on April 6, the day his streak ended—18 games short of Joltin' Joe's. Not that I hold myself responsible—I'm clearly a poor prognosticator. I just wanted you to have plenty of time to come up with another excuse for why, in the year 2006, you're still watching baseball.

10 Number of spots available for the next four-class Aikido Starter Course held at Philadelphia Aikido's Defensive Arts Center April 19, 21, 26 and 28 from 7:30-8:30 p.m. After the above prediction, my editor has informed me it'd be a good idea if I signed up. Call 215-877-6304 to register.

20,000 Number of people who attended the burial of Benjamin Franklin after he died in his sleep—or, depending on which account you read, at the hands of a mob angry about his pessimistic sports projections—at the age of 84, April 17, 1790.