| Dictionary, Encyclopedia and Thesaurus - The Free Dictionary 1,772,904,909 visitors served. |
|
Dictionary/ thesaurus | Medical dictionary | Legal dictionary | Financial dictionary | Acronyms | Idioms | Encyclopedia | Wikipedia encyclopedia | ? |
exosphere |
Also found in: Dictionary/thesaurus, Wikipedia, Hutchinson | 0.02 sec. |
|
exosphere: see atmosphere atmosphere [Gr.,=sphere of air], the mixture of gases surrounding a celestial body with sufficient gravity to maintain it. Although some details about the atmospheres of other planets and satellites are known, only the earth's atmosphere has been well studied, the ..... Click the link for more information. . exosphere [′ek·sō‚sfir] (meteorology) An outermost region of the atmosphere, estimated at 300-600 miles (500-1000 kilometers), where the density is so low that the mean free path of particles depends upon their direction with respect to the local vertical, being greatest for upward-traveling particles. Also known as region of escape. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
|
| ? Mentioned in | ? References in periodicals archive | |
|---|---|---|
But the exospheric "escape rate,' notes Thomas Donahue of the University of Michigan in Ann Arbor, would account for about 1,000 times less water than the proposed comet flux is said to be bringing in. |
| Encyclopedia |
| Free Tools: |
For surfers:
Free toolbar & extensions |
Word of the Day |
Help
For webmasters: Free content | Linking | Lookup box | Double-click lookup | Partner with us |
|---|