close up and slow movement of swirling light blue hued water, in close up and slow motion - 科學實驗 科學 個影片檔及 b 捲影像00:29
futuristic laboratory with diverse scientists. holographic, three dimensional skeleton and dna helix. team scanning virtual patient for injury. nervous system glowing red - 科學實驗 科學 個影片檔及 b 捲影像00:19
1958 close up of the human eye as narrator explains how each part of the eye works - 科學實驗 科學 個影片檔及 b 捲影像01:15
animation of two chemists in adjoining labs competing to be the first to create successful formula for hosiery / audio - 科學實驗 科學 個影片檔及 b 捲影像00:23
ws, td an engineer tests the front end unit of an array at alma / san pedro de atacama, chile - 科學實驗 科學 個影片檔及 b 捲影像00:15
female woman ecologist scientist biologist researcher with microscope, checking out seeds ground plant leaf in petri dish in lab, biological research genetic engineering eco laboratory, food farming. - 科學實驗 科學 個影片檔及 b 捲影像00:08
nanotechnology futuristic research laboratory. molecule dna strand 3d hologram with green and red markers - 科學實驗 科學 個影片檔及 b 捲影像00:13
environment scientists sample wastewater in a test tube and drop chemicals to test the quality of water, industrial, and environment - 科學實驗 科學 個影片檔及 b 捲影像00:17
focused biology students analyzing samples in the laboratory and male teacher helping two female students - 科學實驗 科學 個影片檔及 b 捲影像00:11學生
modern greenhouses of the future monitor plant growth and grow pure, unmodified natural products in hydroponic vertical farms - 科學實驗 科學 個影片檔及 b 捲影像00:16
scientist handling pipette dropping organic compound liquid into glass container for biochemistry research and pharmaceutical testing with protective glove in laboratory - 科學實驗 科學 個影片檔及 b 捲影像00:20
evolution of vascular plants: the ferns - part 26 of 28. describes the evolution of vascular systems in land plants. the highly specialized structures that occur in vascular plants are shown through investigation of the fern. explains the adaptive advanta - 科學實驗 科學 個影片檔及 b 捲影像00:31
4k video footage of a young woman using a dropper and test tubes in a lab - 科學實驗 科學 個影片檔及 b 捲影像00:14女人
an artificial insemination procedure being carried out in a science lab - 科學實驗 科學 個影片檔及 b 捲影像00:11人工授精
1958 dr. wilder penfield uses dr. max baxter to demonstrate that outside stimulation activates the brain - 科學實驗 科學 個影片檔及 b 捲影像00:27
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 科學 個影片檔及 b 捲影像00:37
close up and super slow motion of water drops making pink ripples inside a petri dish placed in half of frame with a copy space below on white background - 科學實驗 科學 個影片檔及 b 捲影像00:23
liquid drops are falling from the pipette. essential oil made in the laboratory for natural organic skincare, - 科學實驗 科學 個影片檔及 b 捲影像00:15
scientists with female leader in protective wear working at natural cbd oils and marijuana research laboratory. leaf sample on a petri dish - 科學實驗 科學 個影片檔及 b 捲影像00:15
teenage female and male stem school in chemistry science lab partners conduct experiment - 科學實驗 科學 個影片檔及 b 捲影像00:09
flowering plants and their parts - part 20 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 科學 個影片檔及 b 捲影像00:32
4k resolution surgeons using vr and hud holographic in a modern laboratory,looking for disease cure,innovative and future of medical and healthcare technology - 科學實驗 科學 個影片檔及 b 捲影像00:19體檢
flowering plants and their parts - part 13 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 科學 個影片檔及 b 捲影像00:28
high technology testing of sample in a petri dish on a special digital screening tab. futuristic scientific testing - 科學實驗 科學 個影片檔及 b 捲影像00:13
close up and slow motion of a various sizes of transparent liquid bubbles floating, bouncing and surfing on and under water surface in a shallow depth of field against a light blue background - 科學實驗 科學 個影片檔及 b 捲影像01:00
asian female agronomist scientists worker using microscope in the laboratory - 科學實驗 科學 個影片檔及 b 捲影像00:26
oil drop into a water, slow motion macro shot of gold yellow oil liquid bubble drop into a clean water. - 科學實驗 科學 個影片檔及 b 捲影像00:22
a chemistry students drains liquid into a beaker and the reaction causes it to change color. - 科學實驗 科學 個影片檔及 b 捲影像00:19
1900s b/w montage thomas edison works in his lab and turns on light bulb / united states - 科學實驗 科學 個影片檔及 b 捲影像00:09
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 科學 個影片檔及 b 捲影像00:36
