Difference between revisions of "Velocity of Escape"
From ExoDictionary
m (1 revision(s)) |
|
(No difference)
| |
Latest revision as of 17:00, 30 April 2007
This definition page has been automatically generated. You can help ExoDictionary by expanding, updating, or correcting it. |
| This autostub has not yet had its initial copyediting proof and may contain significant formatting and even factual errors. You can improve Exodictionary by cleaning up the page markup and verifying that the definition is correct and then removing this tag. |
| This autostub has not yet had its initial categorization proof and may be categorized incorrectly. You can improve Exodictionary by removing inappropriate categories and then removing this tag. |
Velocity of Escape
</dt>
The initial speed an object, particularly a molecule of gas, must have at
the surface of a celestial
body to overcome the gravitational
pull and proceed out into space without returning to the celestial body. Also
called escape velocity, escape speed.
</dd>
The velocity of escape determines a body's ability to retain an
atmosphere. The velocity of escape on the surface of the earth is nearly 7
miles per second, neglecting air resistance.
</dd>
References
This article is based on NASA's Dictionary of Technical Terms for Aerospace Use
