➀ Researchers from the University of Electronic Science and Technology of China and Nanyang Technological University in Singapore have generated GHz-frequency electromagnetic smoke rings. These semi-stable toroidal electromagnetic structures were first proposed theoretically in 1995 by Hellwarth and Nouchi at the University of Southern California. The researchers believe these vortex rings could have potential applications in data transmission and remote sensing. ➁ The unique spectral and polarization characteristics of the vortex rings allow them to carry more information compared to traditional waves. ➂ The skyrmion textures within the vortex rings offer possibilities for topological data storage and processing.