large radio telescope silhouette under a colorful milky way galaxy - 無線電波 個影片檔及 b 捲影像00:25太陽系外行星, 外太空
abstract 4k motion background explosion with glow particles and sphere. 4k stock video - 無線電波 個影片檔及 b 捲影像00:11黑色的背景
color tv channels are preparing to broadcast live signals after the signal was lost from the station. - 無線電波 個影片檔及 b 捲影像00:30
tv static noise white noise effect old tv television screen stripes grain waves lines texture grunge pattern analog video background no signal interference vcr retro glitch distortion loop - 無線電波 個影片檔及 b 捲影像00:42電視雪花
thick smoke plumes creating dramatic sky from out of control bush fire with communication tower in foreground - 無線電波 個影片檔及 b 捲影像00:20森林大火
guided tour of nbc radio studios - orchestra playing symphony over the air waves. - 無線電波 個影片檔及 b 捲影像00:12
flash signals moving across black screen / scientist at work holding ruler to paper, and making notes in lab / scientist making notes while looking... - 無線電波 個影片檔及 b 捲影像00:41
vertical video 5g tower under cloudscape in western colorado with mount garfield in palisade near fruita and grand junction - 無線電波 個影片檔及 b 捲影像00:12
animation showing picture signal voltage, usa, 1953. a documentary film showing how television production and transmission works. - 無線電波 個影片檔及 b 捲影像00:21
animation showing picture signal transmission, usa, 1953. a documentary film showing how television production and transmission works. - 無線電波 個影片檔及 b 捲影像00:14
abstract wave lines, particle lines turbulence, particle connection network, wave pattern, pattern prism glitch curve - 無線電波 個影片檔及 b 捲影像00:07波浪型
tv color band noise is a sign of screen failure and an image that cannot be displayed - 無線電波 個影片檔及 b 捲影像00:24
4k stcok video of oscilloscope wavelengths showing vibrant colors using dynamic movements - 無線電波 個影片檔及 b 捲影像00:25
4k stcok video of oscilloscope wavelengths showing vibrant colors using dynamic movements - 無線電波 個影片檔及 b 捲影像00:30波浪型
4k stcok video of oscilloscope wavelengths showing vibrant colors using dynamic movements - 無線電波 個影片檔及 b 捲影像00:19
4k stcok video of oscilloscope wavelengths showing vibrant colors using dynamic movements - 無線電波 個影片檔及 b 捲影像00:29波浪型
space probes - exploring our solar system - part 13 of 18. animation, live photography, and models of spacecraft and instruments tell the story of man's efforts to explore the outer regions of space - from the launching of pioneer i in 1958 to present-day - 無線電波 個影片檔及 b 捲影像00:33
cnn communication broadcast tower on sunset boulevard and satellite antennas broadcasting latest breaking news from los angeles, california, 4k - 無線電波 個影片檔及 b 捲影像00:24
digital optical lights. abstract background (loopable), clean, simple and shiny animation. beautiful motion design. the concepts of business, finance, technology, futuristic, internet, data, fiber optic, brainstorm, speed, wireless, web, mobile - 無線電波 個影片檔及 b 捲影像00:14
abstract aqua blue lights roll and circle lines, connection network, wave, loop stock video - 無線電波 個影片檔及 b 捲影像00:10
communication dish satellite antennas broadcast breaking news and transmit data information in los angeles, california, 4k - 無線電波 個影片檔及 b 捲影像00:24美國
details of the holmdel horn-reflector antenna on may 24 2013 in holmdel township, nj. two radio astronomers, arno penzias and robert wilson... - 無線電波 個影片檔及 b 捲影像00:57