Tallando granos de arena

At these magnification level, a single pixel is about 50 nanometers wide. Yep, nano. A single line can be somewhere between .4 to 1.0 micrometers—close to the diffraction limit of visible light, hence why the duo can't photograph these drawings using an optical microscope. Each image requires at least nine scans before it can be printed, which Muniz blows up into four feet wide macro photographs.