Japan's electronics parts maker Rohm demonstrates a remote controlled flying paper crane 'Origami', weighing only 31g, at the annual International Robot Exhibition in Tokyo on December 3, 2015. Some 450 companies and organisations are displaying their latest robots with 5,000 people expected to visit during the four-day event. / AFP / YOSHIKAZU TSUNO        (Photo credit should read YOSHIKAZU TSUNO/AFP/Getty Images)