In a particle world, Brij Moudgil is a particle man. You wear them, you eat them, you drink them. Dust is a particle.
Sand is a particle.
Glass beads are particles. Viruses are particles. Bacteria are particles. Even chocolate is particles. Moudgil is director of the University of Florida's Center for Particle Science and Technology, funded by the National Science Foundation in 1994 to study particles as large as a grain of sand and as small as a dust particle split into 25 pieces.