Qantas just completed a record-breaking 19-hour, 16-minute nonstop flight from New York to Sydney. It’s one of three research flights to determine if the routes can be made commercial and--researchers hope--teach us how to avoid the dreaded jet lag. Photo: James D. Morgan/Qantas More from the Wall Street Journal: Visit WSJ.com: http://www.wsj.com/ Visit the WSJ Video Center: https://wsj.com/video On Facebook: https://www.facebook.com/pg/wsj/videos/ On Twitter: https://twitter.com/WSJ On Snapchat: https://on.wsj.com/2ratjSM #WSJ #Travel #TheMiddleSeat