Transcription: It is clear that when the air is cold, it can be more dense. For example, at 100m, 66ps, the pressure of three atmosphere is low. So that a volume of air is determined has three species more molecular scale than the super-50. The team of the body can see the pressure as well. At 100m, 66ps, the air at 300m is more rapid than in the super-fast. If the most dangerous factors are the wind, how much more profound the wind is, more rapid than in the water. Repeat it and more profoundly the wind. Now the energy is not as strong as it used to be.