Shakira performed her 2026 anthem Dai Dai during the first-ever halftime performance at the FIFA World Cup final on July 19 ...

More than 2,300,000 limestone and granite blocks were pushed, pulled, and dragged into place on the Great Pyramid. The average weight of a block is about 2.3 metric tons (2.5 tons). How much is that?

King Khufu, who is also known by the greek name "Cheops," was the father of pyramid building at Giza. He ruled from 2589 - 2566 B.C. and was the son of King Sneferu and Queen Hetpeheres. Dates Built: ...

Photonic crystals are periodic optical structures that can control the flow of light. Multiple reflections from surfaces separated by a distance similar to the wavelength prevent an optical beam from ...