team of students working on a robotic arm together at the lab using a digital tablet while discussing - 物理學 個影片檔及 b 捲影像00:09學生
4k video footage of a scientist solving equations on a glass screen in a laboratory - 物理學 個影片檔及 b 捲影像00:29
the atmosphere in motion - part 20 of 34. the invisible forces that keep the atmosphere in continuous circulation can be visualized in this film. convection cells, the coriolis effect, and the composition and structure of the atmosphere are all revealed t - 物理學 個影片檔及 b 捲影像00:33
evidence for molecules and atoms - part 5 of 33. demonstrates that molecules and atoms in solids, liquids, and gases can be proven to exist. five identical appearing liquids react differently, providing evidence of unseen differences in the arrangements o - 物理學 個影片檔及 b 捲影像00:34
cheerful teacher helping a student explain how the circuit board operates while holding a tablet - 物理學 個影片檔及 b 捲影像00:12
abstract blue futuristic sci-fi plasma circular form with energy light strokes stock video - digital circle wire frame technology blue background stock video - 物理學 個影片檔及 b 捲影像00:30閃電
a middle-aged man writes 'speed' and 'distance' onto the axis of a simple graph drawn on an old-fashioned blackboard in order to explain how he would expect time to behave, uk. - 物理學 個影片檔及 b 捲影像00:12
4k female student wearing safety goggles studying a molecular model in library. - 物理學 個影片檔及 b 捲影像00:10學生
first fifty: ebe's golden anniversary retrospective - part 22 of 29. in this 50th anniversary retrospective film, we hear thomas edison's words proclaim that educational films would one day replace the textbook as the basic tool of education. in the 1958 - 物理學 個影片檔及 b 捲影像00:32
ms slo mo shot of pendulum, newton's cradle, one ball hits another / calvados, normandy, france - 物理學 個影片檔及 b 捲影像00:13
blue cells gather together in a cluster in blue liquid with light shining through. 3d animation - 物理學 個影片檔及 b 捲影像00:10
molecules displayed in a colorful background showing the structure of matter and scientific concepts in a laboratory setting. 3d animation - 物理學 個影片檔及 b 捲影像00:12
robotics teacher showing a group of students how two robots fight ayer programming them - 物理學 個影片檔及 b 捲影像00:07學生
conceptual representation of a cluster of nanoparticles, microorganisms or organic molecules - 物理學 個影片檔及 b 捲影像00:22
the northern lights dazzled across europe over the weekend, illuminating the night skies with vivid green, red, and purples hues. a coronal mass... - 物理學 個影片檔及 b 捲影像00:34天空
the atmosphere in motion - part 12 of 34. the invisible forces that keep the atmosphere in continuous circulation can be visualized in this film. convection cells, the coriolis effect, and the composition and structure of the atmosphere are all revealed t - 物理學 個影片檔及 b 捲影像00:35熱氣球, 氣球
how to produce electric currents with magnets - part 13 of 17. experiments with a magnet and battery show that electricity and magnetism are interrelated and that an electric current can produce magnetic effects - 物理學 個影片檔及 b 捲影像00:37電池
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 - 物理學 個影片檔及 b 捲影像00:25電池
