Land & Sea Journal

Scientists develop unsinkable metal tubes using water-repelling technology | The Optimist Daily (optimistdaily.com)
‘Modified the inner surface of aluminum tubes by etching it with lasers. The process creates micro- and nano-scale pits that make the metal extremely water-repellent. When the treated tube is submerged, this textured surface captures a stable air pocket inside, acting as a built-in flotation system.’ Chunlei Guo led.