The iconic Homo erectus fossil was welcomed home with a repatriation ceremony and a new museum exhibit in Jakarta.

The chessboard has been the source of many ingenious puzzles that involve spatial reasoning and insight thinking. The seven ...

Abstract: This work presents a pioneering approach that utilizes plasma as a high-loss substrate. By designing a checkerboard metasurface on the dielectric-barrier discharge (DBD) plasma substrate, ...

Abstract: A method of machine learning is proposed for enhancing the low-reflection bandwidth of checkerboard metasurfaces. Instead of iterative optimization to a satisfying performance, a conditional ...

The concept of "checkerboarded land" refers to a pattern of land ownership created in the western United States, particularly in Nevada and Arizona, where alternating sections of land were given to ...