Rays is a stand-alone lecture. It overlaps areas such as radiation astronomy, radiation chemistry, radiation biology, and radiation physics. There are aspects included in the various health sciences and medicine.
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Quiz
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Hypotheses
edit- Rays do not always go in straight lines or line segments.
See also
editExternal links
edit- International Astronomical Union
- NASA/IPAC Extragalactic Database - NED
- NASA's National Space Science Data Center
- The SAO/NASA Astrophysics Data System
- SDSS Quick Look tool: SkyServer
- SIMBAD Astronomical Database
- SIMBAD Web interface, Harvard alternate
- Spacecraft Query at NASA
- Universal coordinate converter
{{Principles of radiation astronomy}}