The ballista spider builds sophisticated spring-loaded snares to catapult its prey. Newly discovered, the ballista spider ...

Scientists discovered that the Australian “ballista spider” uses a silk cone trap to catapult prey into its web, a feat of spider engineering never before observed.

Spring-loaded plungers use a spring and a plunger (or ball tip) to exert a precise and repeatable force. They are a better option than having engineers cobble together an assembly that uses a simple, ...

Abstract: Intelligent reflecting surface (IRS) is an enabling technology to engineer the radio signal propagation in wireless networks. By smartly tuning the signal reflection via a large number of ...