MIT hackers installed cranks on Athena machines, office doors, and numerous other objects on campus "in recognition of MIT's Energy Initiative and the $100 Laptop Project," according to a statement released by the hackers. Some of the cranks were accompanied by an explanatory poster describing the hack as "destined to forever change the way MIT views energy conservation and policy" and as having "already [increased] the campus's energy efficiency by 0.0005%."