Winter Olympics: Drone display in opening ceremony was pre-recorded http://ift.tt/eA8V8J

Winter Olympics: Drone display in opening ceremony was pre-recorded http://ift.tt/wEcZxH spectacular sight of 1,218 drones forming the Olympic rings during the opening ceremony of the 2018 Winter Olympics was pre-recorded. http://ift.tt/2si7i9I http://ift.tt/eA8V8J February 10, 2018 at 05:39PM BBC News - Technology http://ift.tt/k2OXzt