!–paging_filter–pShoes with recording devices built into the heels, coins embedded with deadly needles, pens that shoot tear gas, umbrellas that fire poison pellets—ah, for the olden days of spying, ...

Gemstones like precious opal are beautiful to look at and deceivingly complex. As you look at such gems from different angles ...

Abstract: The aim of this study is to develop a steady-state visual evoked potential (SSVEP)-based brain-computer interface (BCI) system with enhanced performance in an augmented reality (AR) ...