To use all functions of this page, please activate cookies in your browser.
my.chemeurope.com
With an accout for my.chemeurope.com you can always see everything at a glance – and you can configure your own website and individual newsletter.
- My watch list
- My saved searches
- My saved topics
- My newsletter
Waterhole (radio)The waterhole refers to an especially quiet section of the electromagnetic spectrum between 18 and 21 centimeters. Hydroxyl radiates at 18 centimeters, and hydrogen at 21 centimeters; those two combined form water, and as water is currently thought to be essential to extraterrestrial life advanced enough to generate radio signals, the waterhole is a frequent target of investigation. |
This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Waterhole_(radio)". A list of authors is available in Wikipedia. |