serpentine

Conducting research inside Mexico's tallest pyramid, the team discovered a green serpentine mask with delicate carvings that they believed belonged to a portrait.

The rare and precious species has suddenly appeared at Pu Hu Nature Reserve (highland district of Quan Hoa, Thanh Hoa).

The engineers at the Warsaw University of Technology have successfully developed an application that allows smart phones to detect explosive devices. SAPER, in Latin means