Stunning images captured by NASA with a new photographic technology have revealed how supersonic aircraft's shockwaves move and interact.
원문출처 : https://www.cnn.com/videos/us/2019/03/07/nasa-shockwaves-sound-barrier-photos-newsource-orig.cnn
원문출처 : https://www.cnn.com/videos/us/2019/03/07/nasa-shockwaves-sound-barrier-photos-newsource-orig.cnn