Scheme illustration of object identification and all-optical 3D reconstruction system. (a) A contour surface image of the object can be obtained in a single processing of the system. (b) High-contrast ...

As suggested in the National Council of Teachers of Mathematics Standards, visualization skills are an important part of learning in mathematics and science. In fact, several mathematicians and ...

Can you imagine the imprint a four-dimensional hexagon might leave as it passes through your three-dimensional kitchen table? Probably not, but some people can. One such person was mathematician ...

This glass plate records the hologram, “Toy Train” by Emmett Leith and Juris Upatnieks. Made in late 1963, this hologram demonstrated their method of making high-resolution three-dimensional images of ...