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escape velocity 【物理學】(火箭)第二宇宙速度,逃逸速度,脫離速度,克服...

escape way

Dr de grey ' s reason for thinking that some people now alive may see their lives extended indefinitely is based on the hope that those few extra years will see further discoveries and improved life - extension technologies based on them ? a process he describes as achieving “ longevity escape velocity ” 德?格瑞博士之所以認為有些在世的人能夠在其有生之年體驗生命得以無限延伸,是因為寄希望于在這多活得幾年時間里會有更多的新發現和改進了的生命延長技術問世,他把這個過程形容為實現了“壽命擺脫了速度” 。

Dr de grey ' s reason for thinking that some people now alive may see their lives extended indefinitely is based on the hope that those few extra years will see further discoveries and improved life - extension technologies based on them - a process he describes as achieving “ longevity escape velocity “ 德?格瑞博士之所以認為有些在世的人能夠在其有生之年體驗生命得以無限延伸,是因為寄希望于在這多活得幾年時間里會有更多的新發現和改進了的生命延長技術問世,他把這個過程形容為實現了“壽命擺脫了速度“ 。

Dr de grey ' s reason for thinking that some people now alive may see their lives extended indefinitely is based on the hope that those few extra years will see further discoveries and improved life - extension technologies based on them ? a process he describes as achieving “ longevity escape velocity ” 得格雷博士認為有些人可以看到自己的生命能不定的延長,是因為在他們多活的那幾年中,可能會有延長壽命的新的發現和科技的進步,他把這個過程描述為實現“壽命逃離速度” 。

On the other hand , einstein discovered that the maximum velocity of any object is the speed of light . therefore , if the escape velocity on the surface of an object is greater than the speed of light , then nothing , including light , can escape from it 另一方面,愛恩斯坦的相對論斷言宇宙中最高的速度便是光速,所以如所需的逃逸速度大于光速,那么宇宙中包括光在內的一切都不可能逃離引力的魔掌,這顆恒星便成為

When the escape velocity at a certain distance from the center reaches the speed of light , an event horizon is formed within which matter must inevitably collapse onto a single point , forming a singularity 當離中心某個距離的逃逸速度達到光速,形成一個活動視界,在里面的物質一定不可避免在單一點之上坍塌,形成一個奇異點。

Michell computed that a body 500 times the radius of the sun and of the same density would have at its surface an escape velocity equal to the speed of light , and therefore would be invisible 米切爾計算一個500倍太陽半徑而且具有相同密度的物體就會具有它的表面逃逸速度等于光速,而因此不可見。

If the ices had been rapidly vaporized by an impacting object , the expanding gases might have helped the ejected fragments reach escape velocity 如果這種(永久凍結)冰由于物體的沖擊力而迅速汽化,則形成的體積不斷膨脹的氣體可能有助于排出的碎片達到逃逸速度。

Because of gravitational attraction , the escape velocity at the surface of a star , say , will be higher if the star is smaller in size or heavier 恒星質量越大,體積越小,引力的羈絆便越大,所需逃逸速度亦越高。

At that time , the newtonian theory of gravity and the concept of escape velocity were well known 那時,牛頓引力理論和逃逸速度的觀念是廣為人知的。

The buildup of pressure would force gas outward at speeds far above escape velocity 壓力的增加,將迫使氣體以遠高于脫離速度的速率向外逃逸。

Escape velocity from galaxy 脫離銀河系的速度

Escape velocity from solar system 脫離太陽系的速度

At the event horizon , the escape velocity is equal to the speed of light 在活動視界里,逃逸速度等于光速。