Lumen
- In anatomy, the lumen is the cavity or channel within a tube or tubular structure, such as the vascular lumen of a blood vessel, along which blood flows, or the lumen of a seminiferous tubule.
- In astronomy, 141 Lumen is the name of an asteroid discovered by the French astronomer Paul Henry in 1875.
- In physics, specifically photometry (optics), the lumen (symbol: lm) is the SI derived unit of luminous flux. It is the amount of light that falls on a unit area at unit distance from a source of one candela.
: See also: Lux.
~ ~ ~ ~ ~ ~ ~ ~ ~ ~
~ Table of Content ~
| ► | Introduction |
~ What's Hot ~
Avatar, All About Steve, The Hangover, Up In The Air, New Moon, Percy Jackson The Olympians The Lightning Thief, The Mummy 4 Rise Of The Aztec, The Blind Side, The Princess And The Frog, District 9, 500 Days Of Summer, Hannah Montana The Movie, Alvin And The Chipmunks The Squeakquel, Dear John, Legion, Harry Potter And The Half Blood Prince, Sex And The City 2, The Karate Kid, Percy Jackson The Olympians The Titan S Curse, Madagascar 3,
~ Community ~
| ► | History Forum Come and discuss about History, Civilizations, Historical Events and Figures |
| ► | History Web-Ring A community of sites, blogs and forums dedicated to History. Do not hesitate to submit your site. |
and are licensed under the GNU Free Documentation License.
Lexicon - Privacy Policy - Spiritus-Temporis.com ©2005.
