Music and theater arts lecturer Mark Harvey and his Aardvark Jazz Orchestra will celebrate the scheduled completion of the Big Dig with the premiere of Harvey's "Dig, Dug, Done," on Wednesday, Feb. 8 at 7:30 p.m. at the Regatta Bar. Celebrating the Big Dig -- which marked "substantial completion" on Jan. 31 after 14 years and an investment of more than $14 billion -- has become an Aardvark tradition. In 2004, the band played Harvey's first Central Artery composition, "Dig the Dig" (complete with hard hats, shovels and cell phones), and Harvey is keeping open the possibility of further musical tributes through 2010, just in case.

This illustration shows a lead sulfide quantum dot array. Each quantum dot (the colored clusters) is 'passivated' by molecules that bind to its surface. Dots that are made up of unequal amounts of lead and sulfur tend to cause electrons (shown in red) to become highly localized, which can substantially lower the electrical transport of the device.Image: Donghun Kim and Jeffrey C. Grossman
Balance is key to making quantum-dot solar cells work
MIT team finds that the ratio of component atoms is vital to performance.