The small Icelandic island of Grímsey is trying to mark its place on the border of the ever-shifting Arctic Circle. And to do this they are using a 17,600-pound concrete sphere that will be moved ...

Vantablack is one of the blackest materials in the world.Made by the British company Surrey NanoSystems, it's comprised of a field of nanotubes that are smaller than the width of a human hair and ...

For more complicated systems, the circle on a plane is replaced by a circle on a curved surface—the surface of a sphere for instance. In this case, the effect of squeezing depends on the ...