Post #1073384

Scientists have cracked 3D printing tungsten carbide-one of the hardest metals on Earth. In my novels, Joe Ballen is chief engineer on a 3D printed O'Neill cylinder. Two centuries later, habitats like it are standard across dozens of star systems. Turns out the future I've been writing is arriving ahead of schedule — again. https://tinyurl.com/3dpmetal #science #engineering #sciencefiction #scifi #writing #books