The ancient Egyptians didn't want tomb robbers to pilfer treasures in the pyramids, so how did they stop thieves?

Abstract: Surface deformation poses a great threat to the safety of Jinchuan mining area production activities. At present, the spatio-temporal evolution law and mechanism of surface deformation in ...

Abstract: A phased array loaded with a reactive impedance surface (RIS) is proposed for wideband wide-scanning performance. The mushroom-like RIS structure, etched on the same printed circuit board ...

Marshall Hargrave is a stock analyst and writer with 10+ years of experience covering stocks and markets, as well as analyzing and valuing companies. Khadija Khartit is a strategy, investment, and ...

Many objects such as packing containers, buildings and components of machines have geometric representations that use two- and three-dimensional shapes. This leads to many practical scenarios that ...