One of the most interesting twists resulting from Hurricane Maria striking Puerto Rico was Elon Musk's offer that Tesla could help Puerto Rico solve its energy crisis, with a long-term, 21st century fix. After all, its electrical grid was devastated, with almost all the power wiped out. It didn't help that even prior to this disaster its system was antiquated and badly in need of repairs. It is telling that we don't have similar offers to rebuild the Puerto Rico's health care system, which is similarly devastated. Or, for that matter, our system, which is its own kind of disaster. Mr. Musk was asked on Twitter if Tesla could help Puerto Rico using solar and battery power, and he responded in the affirmative, saying it had done so on smaller islands but faced no scalablity issues...
Mission control on earth receives an urgent communication from Mars that an astronaut has fractured his shinbone. Using a handheld scanning device, the crew takes images of his damaged tibia and transmits them to earth. Orthopedic surgeons then use a 3D printer to create an exact replica of the astronaut’s leg from medical imaging files obtained before the voyage. Surgeons on earth use a robot to stabilize the bone with a metal plate on the 3D replica. The data is transmitted back to Mars, where surgical instruments, a personalized plate and screws are 3D printed. Finally, a surgical robot operates on the injured astronaut...