In June, the Italian Ministry of Culture announced the excavation of a new room, not yet open to the public, in the ruins of Pompeii. A few weeks later, a group of archaeologists gathered to marvel at it: walls covered with bright blue paint — an ex

Drexel University created self-healing concrete by imbuing ordinary concrete with living organisms. Water eventually seeps into the concrete once it develops cracksaxiebet88, causing its endoscopic bacteria to move toward the surface and fill it wit