| Dictionary, Encyclopedia and Thesaurus - The Free Dictionary 1,775,840,703 visitors served. |
|
Dictionary/ thesaurus | Medical dictionary | Legal dictionary | Financial dictionary | Acronyms | Idioms | Encyclopedia | Wikipedia encyclopedia | ? |
hydrogen line |
Also found in: Wikipedia | 0.01 sec. |
|
hydrogen line [′hī·drə·jən ‚līn] (spectroscopy) A spectral line emitted by neutral hydrogen having a frequency of 1420 megahertz and a wavelength of 21 centimeters; radiation from this line is used in radio astronomy to study the amount and velocity of hydrogen in the Galaxy. 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 | |
|---|---|---|
It would work like this: Commuters drive their cars to work, then plug them into the hydrogen line coming out of the natural gas reformer installed as part of the building's fuel cell. The spectra of Type 1 Seyfert galaxies feature a broader hydrogen line than those of Type 2. |
| 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 |
|---|