The movement of waves, patterns that carry sound, light or heat, through materials has been widely studied by physicists, as ...
The sheen of satin, the subtle glints of twill, the translucence of sheer silk: Fabric has long been difficult to render ...
Planet or Plastic? is National Geographic’s multiyear effort to raise awareness about the global plastic trash crisis. Come to this page often to learn more, and find out what you can do to reduce ...