DHV requires the parachute to open in less than 60 vertical meters when the load (simulating the pilot) and the parachute are dropped in free fall, side by side, at the same time.
而DHV要求在带着模拟飞行员必须在60米的垂直下落距离内打开，下抛时备份伞是同假人处于同一高度并列放下。
Law of Vertical free - fall of the particle in gravitational field is found with the help of General Relativity. According to this, We gain odd feature that the particle moves towards black hole.
用广义相对论求出质点在引力场中竖直自由下落的规律，由此得到质点落向黑洞的奇异特征。
Law of Vertical free - fall of the particle in gravitational field is found with the help of General Relativity. According to this, We gain odd feature that the particle moves towards black hole.
用广义相对论求出质点在引力场中竖直自由下落的规律，由此得到质点落向黑洞的奇异特征。
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