the gamma-ray large area space telescope (glast) will observe the sky in gamma-rays with energies between 10 million electron volts (mev) to 300 billion electron volts (gev) (a photon of visible light is roughly 2 electron volts). - 伽馬射線 個影片檔及 b 捲影像00:41紫色
launch and deployment of nasas fermi gamma ray space telescope (formerly known as glast) - 伽馬射線 個影片檔及 b 捲影像01:39外太空
zi whipple observatory land-based telescopes / mount hopkins, arizona, united states - 伽馬射線 個影片檔及 b 捲影像00:18
animation illustrating the effects on a victim exposed to the flash of a bomb and those who take cover / united kingdom - 伽馬射線 個影片檔及 b 捲影像00:27
animation illustrating the process of a hydrogen bomb explosion / united kingdom - 伽馬射線 個影片檔及 b 捲影像00:18
scientist monitoring mechanical control arms in radiation experiment / united kingdom - 伽馬射線 個影片檔及 b 捲影像00:31
swancutt and wood inspect final preparations for their flight / target ships assembled in bikini atoll / sailor mounts test materials to side of ship... - 伽馬射線 個影片檔及 b 捲影像00:28
beams of light from a red laser light barrier of a connected alarm that is activated by cutting the light beam. - 伽馬射線 個影片檔及 b 捲影像00:29
beams of light from a red laser light barrier of a connected alarm that is activated by cutting the light beam. - 伽馬射線 個影片檔及 b 捲影像00:14
rising muddy river after heavy rain, with high water levels near riverbank vegetation, indicating flood risk and environmental impact from extreme weather events in rural areas - 伽馬射線 個影片檔及 b 捲影像00:14