castle bravo was an experimental thermonuclear device using dry thermo-nuclear fuel detonated february 28, 1954 on bikini atoll. bravo was the... - 科學實驗 事件 個影片檔及 b 捲影像01:23爆炸
close up of scientist's hand using droplet fill chemical substance on petri dish in a laboratory - 科學實驗 事件 個影片檔及 b 捲影像00:19
scientist, man and research in laboratory with microscope for check of particles, microorganisms or dna test. microbiology, science and studying of data analysis or sample investigation with uv light - 科學實驗 事件 個影片檔及 b 捲影像00:09
what is electric current? - part 18 of 23. points out there is an electric current only when electricity has a complete circuit through which to flow; that electricity can flow in either direction; that electric current is a flow of electric charges which - 科學實驗 事件 個影片檔及 b 捲影像00:25電池
criminologist in a hazmat suit and protective gloves putting a ruler next to a physical evidence on a floor at the crime scene, while camera shoots it from side to side in close-up - 科學實驗 事件 個影片檔及 b 捲影像00:14犯罪現場, 犯罪
a test is carried out on blood in a laboratory to measure changes in cholesterol levels. - 科學實驗 事件 個影片檔及 b 捲影像00:08
team at indiana university – purdue university indianapolis is working with dog training service “medical mutts” to verify that dogs have the ability... - 科學實驗 事件 個影片檔及 b 捲影像01:21
pool testing kit being used in a swimming pool for water chlorine and ph level - 科學實驗 事件 個影片檔及 b 捲影像00:12
innovative scientific research: utilizing advanced plasma technology in a modern lab environment - 科學實驗 事件 個影片檔及 b 捲影像00:12
female doctor softly pets the guinea pig helping it feel safe and comfortable - 科學實驗 事件 個影片檔及 b 捲影像00:06動物實驗
a group of young adults from several ethnic backgrounds gathered and brainstormed about programming contemporary hand robotics.invention and training of robots for laboratory or university research and development. - 科學實驗 事件 個影片檔及 b 捲影像00:10
grunge ink spreads reveal and fills the screen massive ink leak spreads over screen - 科學實驗 事件 個影片檔及 b 捲影像00:07白色, 黑色
american male software engineer developer use computer work on program coding and data security in office. artificial intelligence and programming. - 科學實驗 事件 個影片檔及 b 捲影像00:06
male chemist operating gc auto-samplers for sample analysis with main computer. integration of advanced technology and scientific expertise in modern chemical research. - 科學實驗 事件 個影片檔及 b 捲影像00:09
female student studying mechanical engineering , turbine design and analyze wind turbine structures and components - 科學實驗 事件 個影片檔及 b 捲影像00:16
/ horizon view of the first atomic bomb test / several explosive sounds and the formation of a mushroom cloud. first atomic bomb is tested at trinity... - 科學實驗 事件 個影片檔及 b 捲影像00:21美國
medical technicians are looking at the microscope.scientists in lab coats working in laboratory.scientist in biology tech laboratory inspecting liquid in beaker.laboratory analysis - 科學實驗 事件 個影片檔及 b 捲影像00:23
the single-celled animals - protozoa - part 18 of 28. illustrates the characteristics and behavior of representatives of each class of protozoans, demonstrates the processes of digestion and reproduction in representative protozoans, and discusses theorie - 科學實驗 事件 個影片檔及 b 捲影像00:36
please stand by - tv screen test. glitch. television test pattern stripes. retro style screensaver. 4k video - 科學實驗 事件 個影片檔及 b 捲影像00:05電視雪花
flowering plants and their parts - part 4 of 26. reviews the typical structure of the "higher" green plants and illustrates, through demonstrations, the functions and interdependence of their parts - 科學實驗 事件 個影片檔及 b 捲影像00:37
man sitting in early helicopter invention, 'sky car' / umbrella style wing makes the sky car bounce up and down on the ground early failed flight... - 科學實驗 事件 個影片檔及 b 捲影像00:10飛機
a close - up of a chemist's hands in protective gloves, pouring green liquid from one test tube to another - 科學實驗 事件 個影片檔及 b 捲影像00:08體檢
unrecognizable microbiology scientist, sampling with a sample bottle the water from city river for analysis - 科學實驗 事件 個影片檔及 b 捲影像00:09醫學樣本
laboratory technician, asian medical technicians work in private laboratories. - 科學實驗 事件 個影片檔及 b 捲影像00:18亞洲
female researchers working in a research facility. she looking through a microscope. - 科學實驗 事件 個影片檔及 b 捲影像00:30
an investigator enters a lab, sits at a desk, opens a box, and removes a plaster mold. - 科學實驗 事件 個影片檔及 b 捲影像00:16
close up and slow movement of swirling light blue hued water, in close up and slow motion - 科學實驗 事件 個影片檔及 b 捲影像00:29
blinding flash and mushroom cloud as first atomic bomb is detonated during the "trinity" test in new mexico; fireball moves upward - 科學實驗 事件 個影片檔及 b 捲影像00:15爆炸
