In class today we will listen to excerpts from Anne Niemetz and Andrew Pelling’s installation “The Dark Side of the Cell.” For more information about their audio and video recordings/compositions visit the website:
Figure 1. a) An optical microscope image of a triangular AFM cantilever. At the apex of the triangle is a small tip that is barely visible and appears as a small block spot. A cartoon zoom of the side view of the cantilever shows the pyramidal shape of the tip that has an approximate radius of about 20 nanometers. In b) a schematic of the AFM cantilever is shown. The tip itself has a 35 degree half opening angle. c) A cartoon of the AFM setup. The AFM cantilever is mounted on the end of a tube piezoelectric crystal. As the crystal moves the tip over the surface, a laser monitors the tip displacement. The laser is bounced off the back of the cantilever into a position sensitive photodiode that records the cantilever motion. A computer assembles a three dimensional image based on this data.