What if humans parachuted into tornadoes?
Seen from outside, the tornado was like a wild cloud. Wind speed can reach 500 km / h and sweep everything around. However, the central area is quite smooth air.Why can parachutes die
What makes the skydiving dangerous? Perhaps everyone thought it was a risk of not opening.Back to the Future has appeared in the real world
The seemingly untrue dream has finally emerged, and more surprisingly, recently, this invention has reached the Guinness World Record.