Battery-powered drones have mostly replaced manned aircraft in a range of tasks, from scientific measurements to aerial photography, with one persistent disadvantage – the limit of their power source. A startup company in San Francisco says their airship can do a lot of those tasks while staying in the air much longer. VOA’s George Putic reports.
More people in Columbus, Ohio, are now surviving when their hearts suddenly develop an abnormal beat and stop beating altogether. VOA's Carol Pearson reports their survival is due to a new procedure developed after the hospital partnered with a local fire department.