the.com/dispersion
the reason a prism turns plain light into a riot of disagreeing colors
means the act or process of scattering things—light, particles, people—away from a single point and out across a wider area.
from From Latin 'dispergere,' to scatter abroad, built from 'dis-' (apart, in every direction) plus 'spargere' (to sprinkle or strew)—the same 'spargere' that seasons 'sparse' and 'aspersion.' So at root it pictures someone flinging seed or salt with an open hand, the grains flying off to settle everywhere and nowhere in particular.
- prism trick
- each color bends a slightly different amount
- rainbow recipe
- raindrops disperse sunlight into the sky's arc
- fiber penalty
- spreads light pulses, blurring internet signals over distance
- diamond fire
- high dispersion makes gems flash colorful sparkle
- sound too
- waves of different frequencies travel at different speeds
for instance
diaspora of jews — exile from judea beginning 70 ce after roman destruction of second temple
dandelion seed dispersal — single plant releases 15,000 seeds via wind across multiple kilometers