Andrew Clark

A satellite image, 120 Crayola crayons, and the mathematics between them. Color-a-Pixel maps Landsat imagery to a numbered grid of crayon colors: a NASA Earth Science-funded outreach activity rebuilt as an interactive investigation of color quantization in perceptual space. A 3D color space visualizer lets you explore the geometry of the mapping. "Nearest" means something different when you ask the eye instead of the sensor.

A 200-band hyperspectral pixel is not a color. It is a point in 200-dimensional space, and you cannot look at 200 dimensions. This tool projects high-dimensional datasets into 3D, morphing smoothly between PCA and t-SNE so you can watch global structure warp as local neighborhoods tighten. Five bundled datasets span hyperspectral imagery, world development indicators, knowledge graphs, and word embeddings. An integrated essay with live action triggers guides the reader through the tool as they read.

The topology of the yin-yang, from 2D through the Hopf fibration. A real-time volumetric ray marcher renders the classical symbol as a helical sweep through a cylinder, torus, and the 3-sphere, exploring the geometric parallels between ancient complementarity and the fiber bundles and gauge symmetry of modern physics. Responsive sonification maps the topology to sound: winding numbers become harmonic intervals, the cross-section becomes pitch, and the Hopf fibers become a slow counter-phase tremolo.

A sealed glass vessel, a turntable driven by magnets through the glass, and a stereo camera pair watching a mushroom grow. MPC-1 is a portable robotic laboratory that captures the full 3D geometry of biological growth while closed-loop environmental control modifies conditions based on the physical shape of the organism, without human intervention. The goal: high-fidelity training data for physics-informed neural networks. Currently in hardware integration.