dropper placing a liquids sample substance droplet on a microscope and microscope glass slide - 顯微鏡載玻片 個影片檔及 b 捲影像00:12
montage lab technician studying bacteria from a colony on a slide / united kingdom - 顯微鏡載玻片 個影片檔及 b 捲影像01:38
close-up of a drop of blood on a digital hud panel of the future with touch sensors. modern medicine of the future. - 顯微鏡載玻片 個影片檔及 b 捲影像00:17
1923 montage man looking in microscope with his hand moving slide under the lens / united states - 顯微鏡載玻片 個影片檔及 b 捲影像00:12
biology: exploring the living world - part 15 of 18. examines the three lines of defense against infection - the skin and mucous membrane, the lymphatic system, and the circulatory system including liver and spleen. explains how the body becomes immune to - 顯微鏡 載玻片 個影片檔及 b 捲影像00:33
latin american female researcher analyzing a sample under the microscope at the lab - 顯微鏡載玻片 個影片檔及 b 捲影像00:15
why foods spoil (molds-yeasts-bacteria) - part 12 of 24. describes the work of molds, yeasts, and bacteria, showing how they grow and multiply, how they spoil food, and how they can be destroyed. illustrates various processes used in food preservation - 顯微鏡載玻片 個影片檔及 b 捲影像00:32
various cu ecu fingers moving slide with dna sample into place on lit stage of an atomic force microscope. - 顯微鏡載玻片 個影片檔及 b 捲影像00:15
biology: exploring the living world - part 3 of 33. this overview film from the encyclopaedia britannica education biology program will spark students' interest in the study of biology. the film examines the relationship between living things and their ph - 顯微鏡載玻片 個影片檔及 b 捲影像00:33
close-up shot of microbiologist looking at a petri dish with bacteria through light - 顯微鏡載玻片 個影片檔及 b 捲影像00:09
a close-up of a scientist in protective mask and glasses looking at a microscope slide with a blood drop in a modern laboratory - 顯微鏡載玻片 個影片檔及 b 捲影像00:13
rocks that form on the earth's surface - part 23 of 29. designed to help students investigate sedimentary rocks - to discover where they come from, what they are made of, and how they are formed. explores some of the ways in which sediments are produced, - 顯微鏡載玻片 個影片檔及 b 捲影像00:32
close up woman opening drawer and looking through medical samples / holding up + examining slide - 顯微鏡載玻片 個影片檔及 b 捲影像00:16
scientist hands in gloves hold sterile flask with red liquid. oil research and toxic liquid concept - 顯微鏡載玻片 個影片檔及 b 捲影像00:08
black female scientist analyzing samples using a microscope at the hospital’s lab - 顯微鏡載玻片 個影片檔及 b 捲影像00:13
close up of scientist hands using sample under the microscope in laboratory. - 顯微鏡載玻片 個影片檔及 b 捲影像00:15
the tobacco problem: what do you think? - part 5 of 28. presents historical perspective and timely data on the smoking habit and health risks. although ad campaigns continue to glamorize smoking, researchers demonstrate that heavy smoking now is known to - 顯微鏡載玻片 個影片檔及 b 捲影像00:27
the single-celled animals - protozoa - part 13 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 - 顯微鏡載玻片 個影片檔及 b 捲影像00:27
living things in a drop of water (1st edition) - part 6 of 20. striking photomicrography pictures single-celled and multi-celled plants and animals. the film helps children discover that these plants and animals have the same life functions as larger livi - 顯微鏡載玻片 個影片檔及 b 捲影像00:36
photosynthesis (3rd edition) - part 5 of 35. a fascinating look at a process that is one of the key energy producers for all life - and the current research being done to expand its potential use. the film examines chemical changes and structures involved - 顯微鏡載玻片 個影片檔及 b 捲影像00:34
energy for the future - part 12 of 28. constantly growing energy needs, dwindling reserves of fossil fuels, recent fuel shortages, and increasing fuel costs -- such conditions have established a need for new energy sources. this film examines energy alter - 顯微鏡載玻片 個影片檔及 b 捲影像00:31
evolution of vascular plants: the ferns - part 1 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 advantag - 顯微鏡載玻片 個影片檔及 b 捲影像00:37
close up of scientist hands using sample under the microscope in laboratory. - 顯微鏡載玻片 個影片檔及 b 捲影像00:15
4k video footage of scientists wearing radiation suits while working in a lab - 顯微鏡載玻片 個影片檔及 b 捲影像00:15
pools of clear liquid appear on a microscopic slice of an asteroid under extreme magnification. - 顯微鏡載玻片 個影片檔及 b 捲影像00:21
