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1960s SCIENCE PROFESSOR WRITING A FORMULA FOR CHELATING AGENT ON CHALKBOARD
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1960s PROFILE OF SCIENTIST MAN IN LAB COAT WRITING OUT CHEMICAL FORMULA ON BLACKBOARD
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Intelligent woman solve a complicated mathematical function
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mad , stained scientist pointing finger with attention sign
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Kids in chemistry class with their teacher - doing a simple experiment
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glasses over physics formulas and calculations written on paper
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portrait of mid adult woman writing chemical formula on blackboard
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science and chemistry classes with teacher and young school boy at bright lab
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Boy Psychologist Draing Hierarchy Of Needs On Blackboard, Kid Doing Science Research Dreaming Of Becoming Professional Scientist In The Future. Part Of Series With Children Working In Different Scientific Fields Vector Illustrations.
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Female researcher working on a computer at her desk in a laboratory.
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Teacher demonstrating simple chemical experiment in elementary science class - closeup
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rear view of woman in lab clothes writing chemical formula on blackboard
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rear view of female teacher in lab clothes holding chalk against blank blackboard. Copy space
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Speaker at the podium. The lecture presentation. Science and education, business school. Retro style pop art
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Teacher showing basic chemistry experiment to a little student in elementary school
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Chemistry experiment at school - boy mixing two chemicals helped by his teacher
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rear view of female teacher in lab clothes holding chalk against blank blackboard. Copy space
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science and chemistry classes with teacher and young school boy at bright lab
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Scientist at Blackboard, Centers For Disease Control, Emory University, Atlanta, GA, USA
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Intelligent woman solve a complicated mathematical function
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Cute scientist standing in front of a blackboard looking at the camera
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portrait of mid adult woman writing chemical formula on blackboard
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science and chemistry classes with teacher and young school boy at bright lab
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Scientist at Blackboard, Centers For Disease Control, Emory University, Atlanta, GA, USA
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Smilling scientist standing in front of a blackboard looking at the camera
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portrait of mid adult teacher with arms folded against blank blackboard. Copy space
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Female researcher analyzing a molecular model in a laboratory.
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researcher thinking at his workplace in a laboratory.Shot with Canon 70-200mm f/2.8L IS USM
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Female researcher looking through a microscope in a laboratory.Shot with Canon 70-200mm f/2.8L IS USM
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Female researcher taking notices while she is using a microscope.All inscriptions are mine.
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Researcher thinking about an experiment at his workplace.
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Researcher taking notes; he is surrounded by heaps of books.
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Professor at work, working with very old books and taking notes
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