History Channel - Mega Disasters: Gamma Ray Burst (2011)
DVDRip | AVI | English | 00:44:25 | 624x352 | XviD - 1101 Kbps | MP3 - 112 Kbps | 350 MB
Genre: Documentary | Country: USA
Gamma-ray bursts (GRBs) are flashes of gamma rays associated with extremely energetic explosions that have been observed in distant galaxies. They are the most luminous electromagnetic events known to occur in the universe. Bursts can last from milliseconds to several minutes, although a typical burst lasts a few seconds. The initial burst is usually followed by a longer-lived "afterglow" emitted at longer wavelengths (X-ray, ultraviolet, optical, infrared and radio).
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