Mr. Jianfeng Yang has made a dandelion-like structure that can “take-off” inside a wind flow. It forms a separated vortex ring pattern that enables the easy wind-assisted travelling. More details see in our recent paper published in Advanced Science. doi/10.1002/advs.202206752 or go to the University News for a easy reading. https://www.tuni.fi/en/news/fairy-robot-flies-power-wind-and-light
I personally feel extremely lucky to have Jianfeng, a briliant PhD student, here to work on the FAIRY project. I am very much looking forward to his next paper.