Roma Gallery presents the group exhibition Geometric Vision: Opy Zouni, Marianna Lourba, Giannis Michas, curated by art historian Alia Tsagkari.

Horizontal lines run left to right, parallel to the horizon, with slope 0 and equation y = k. Vertical lines run top to bottom, perpendicular to the horizon, with undefined slope and equation x = k.

Mathematicians show “soft cell” shapes are abundant in natural world. Soft cells are described as natural tiles with curved edges—a stark contrast to the mathematical solutions for creating tiling ...

In any building clearing, SWAT, active shooter response or other “tactical” class you take, there will be discussion of how to best navigate corners, doorways, etc. As you consider the best way to ...

Eric Mack has been a CNET contributor since 2011. Eric and his family live 100% energy and water independent on his off-grid compound in the New Mexico desert. Eric uses his passion for writing about ...