Technology
Reconfigurable Intelligent Surfaces for Wireless Channel Control
Quick fact
A single RIS can contain thousands of tiny elements, each capable of shifting the phase of a reflected signal, effectively turning a wall into a smart mirror for radio waves.
Why this is interesting
Imagine if the walls of a room could be programmed to reflect Wi-Fi signals exactly where you need them. What if instead of boosting the transmitter, you simply controlled the environment?