Light pours straight through a glass window but bounces off a metal spoon — and the same single idea explains both, plus why most things are opaque and colored. This short course follows light into a material and asks what its electrons do with it: pass it through (glass), throw it back (shiny metal), or soak up some colors and scatter the rest (everything else).
Light pours straight through a glass window but bounces off a metal spoon — and the same single idea explains both, plus why most things are opaque and colored. This short course follows light into a material and asks what its electrons do with it: pass it through (glass), throw it back (shiny metal), or soak up some colors and scatter the rest (everything else).
