roll of graph paper moves underneath ink needles / dr. edward rackman sits with technician in headgear with wires / cone-shaped, metal disk /... - 科學實驗 事件 個影片檔及 b 捲影像00:47
ms scientist looking at dna result under black light, boxmeer, netherlands - 科學實驗 事件 個影片檔及 b 捲影像00:06紫外線燈
animation of two chemists in adjoining labs competing to be the first to create successful formula for hosiery / audio - 科學實驗 事件 個影片檔及 b 捲影像00:23
a chemistry student ignites a bunsen burner and changes the color of the flame. - 科學實驗 事件 個影片檔及 b 捲影像00:18
ws an engineer checks and adjusts an oscilloscope / san pedro de atacama, chile - 科學實驗 事件 個影片檔及 b 捲影像00:18
ws, td an engineer tests the front end unit of an array at alma / san pedro de atacama, chile - 科學實驗 事件 個影片檔及 b 捲影像00:15
closeup of two male software developers meeting on multiple computer screens displaying programming code, collaborating on project standing in office. artificial intelligence and programming concept. - 科學實驗 事件 個影片檔及 b 捲影像00:08
semiconductor production at electronics manufacturing facility. worker or engineer wears medical protective suit or white coverall suit with silicon wafer. - 科學實驗 事件 個影片檔及 b 捲影像00:15
semiconductor production at electronics manufacturing facility. worker or engineer wears medical protective suit or white coverall suit with silicon wafer. - 科學實驗 事件 個影片檔及 b 捲影像00:18
engineer in safety gear and gloves examining engine performance in industrial workshop. the preventive maintenance process helps extend the engine’s lifespan and maintain operational efficiency. - 科學實驗 事件 個影片檔及 b 捲影像00:11
engineer in uniform wearing gloves connects hose to vacuum pump for oil sample collection. industrial research and quality control scene in auto workshop showing expertise, lubrication testing, and chemical analysis preparation. - 科學實驗 事件 個影片檔及 b 捲影像00:11
female scientist analyzing chemical solution in flask at laboratory, scientific research, biotechnology, chemistry experiment, and medical innovation concept - 科學實驗 事件 個影片檔及 b 捲影像00:23
in a laboratory, a brunette woman scientist is seen sitting at a control panel during an eeg test. followed by a male patient wearing electrodes on... - 科學實驗 事件 個影片檔及 b 捲影像00:13
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 事件 個影片檔及 b 捲影像00:08
liquid drops are falling from the pipette. essential oil made in the laboratory for natural organic skincare, - 科學實驗 事件 個影片檔及 b 捲影像00:15
aerial view of two environmental engineers work at wastewater treatment plants, water management concept. - 科學實驗 事件 個影片檔及 b 捲影像00:23污水
researcher analyzing red solution in test tube in laboratory. analysis involved in scientific research, emphasizing the importance of precision and protective equipment in the laboratory. - 科學實驗 事件 個影片檔及 b 捲影像00:12體檢
scientist wearing surgical mask hold test tube, pours steaming liquid out of it. - 科學實驗 事件 個影片檔及 b 捲影像00:06
united states the camera goes from a wide angle to a zoom of the fire in the mushroom cloud. after the explosion, soldiers enter the field and check... - 科學實驗 事件 個影片檔及 b 捲影像01:25蘑菇雲, 防空洞
diverse female students looking at a sample in microscope during lab class while male teacher is explaining something - 科學實驗 事件 個影片檔及 b 捲影像00:05
united states atomic explosion in a us army testing site. the narrator explains all of the phases in the atomic cloud. then, he explains the process... - 科學實驗 事件 個影片檔及 b 捲影像02:07美國
closeup young asian man software developers using computer to write code sitting at desk with multiple screens work at office. programmer development. - 科學實驗 事件 個影片檔及 b 捲影像00:09
computer, brain scan xray and asian woman, doctor and working on clinic study, medical project or healthcare. night hospital, mri analysis and neurosurgeon monitor cancer risk, anatomy or neurology - 科學實驗 事件 個影片檔及 b 捲影像00:21
scientist in coverall suit working withthe radioactive weapon.biohazard emergency response. high tech research - 科學實驗 事件 個影片檔及 b 捲影像00:22
education topics : boy building and studying robot stem programming software,technology of robotics programing and kids education concept. - 科學實驗 事件 個影片檔及 b 捲影像00:11
the alcohol problem - what do you think? - part 21 of 31. society's most popular drug is examined from three perspectives: part i reveals the social aspects of drinking, reviews the history of alcohol usage, and dramatizes the economic importance of the a - 科學實驗 事件 個影片檔及 b 捲影像00:35體檢
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 - 科學實驗 事件 個影片檔及 b 捲影像00:37電池
work of the kidneys - part 13 of 19. describes structure and function of the renal system, and explains how the kidneys maintain uniformity in blood and tissues. demonstrates, with animated drawings and laboratory experiments, the formation of urine, regu - 科學實驗 事件 個影片檔及 b 捲影像00:27
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 事件 個影片檔及 b 捲影像00:32
title "atom bomb - civil defense tests effect on typical town" superimposed over cloud from explosion / aerial pan desert test site with buildings... - 科學實驗 事件 個影片檔及 b 捲影像03:23爆炸
two people in early airplane invention with flapping wings / plane collapses early failed flight invention on january 01, 1915 in unspecified - 科學實驗 事件 個影片檔及 b 捲影像00:05飛機
medical technician check the patient's blood with advanced technology lab equipment. - 科學實驗 事件 個影片檔及 b 捲影像00:15體檢
senior scientists checking hemp plants researching and examining cbd hemp oil in cannabis laboratory - 科學實驗 事件 個影片檔及 b 捲影像00:05
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 事件 個影片檔及 b 捲影像00:19
