Jon “Okie” Williams ’07 of the carrie okie band (aka Fortran) plays the drums with a “Hello, World” program, written in the Fortran 77 programming language, on his chest. The Bexxxley Roxxx Some More concert, which happened Saturday night in the basement of Bexley Hall, featured a number of MIT student bands.

Jonathan S. Krones ’07 plucks the strings of his bass guitar during The Peaches’ set. The Bexxxley Roxxx Some More concert, which happened Saturday night in the basement of Bexley Hall, featured a number of MIT student bands.

Guest bass guitarist Jack Murphy ’10 (left) and drummer Michael S. Fleder ’08 glance at each other during the performance by the Johnson/Fleder Sub-Trio, which featured Murphy and DJ Shiftee (Sam Zornow of Harvard University). The Bexxxley Roxxx Some More concert, which happened Saturday night in the basement of Bexley Hall, featured a number of MIT student bands.

DJ Shiftee (Sam Zornow of Harvard University, left) plays a beat as Collin E. Johnson G takes a break from playing the saxophone. The Bexxxley Roxxx Some More concert, which happened Saturday night in the basement of Bexley Hall, featured a number of MIT student bands.

William R. Bosworth ’08 sings while playing lead guitar for The Peaches during an encore performance. The Bexxxley Roxxx Some More concert, which happened Saturday night in the basement of Bexley Hall, featured a number of MIT student bands.

With 200 meters to go in the 5th heat of the 4x400-meter relay, John A. Granata ’11 chases a SUNY Cortland runner while trying to fend off a runner from Bryant College. The MIT relay finished in 3:22.46, placing 23 of 51 relay teams. The MIT men’s and women’s track and field teams competed at the Boston University Valentine’s Invitational this past Friday and Saturday.

Don Contois of the Steelco Fence company helps install a fence in preparation for the construction of MIT Building 76, which is scheduled to open in 2010. The new building, which will house the David H. Koch Institute for Integrative Cancer Research, will be constructed along Main St. between the Stata Center (Building 32) and the Koch Biology Building (Building 68; also named for David H. Koch ’62).

Karen K. Shu G throws a pass past a Northeastern defender to Adele D. Phillips G to score the final goal of the match. sMITe, the MIT women’s ultimate team, played a scrimmage against the Northeastern Valkyries this past Sunday evening, which they won 5-3.

The stoplights and streetlights have periodically been out at the 77 Massachusetts Ave. crosswalk during recent evenings. Shown is an officer directing traffic in lieu of the traffic signal.

Oxford mathematician Marcus du Sautoy explains how the waveform of a violin’s sound can be expressed as a linear combination of pure tones. The explanation served as a stepping stone toward explaining the utility of the famous Riemann hypothesis. Sautoy presented a lecture entitled “The Music of the Primes” yesterday evening in 26-100.