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professor writing on blackboard (timelapse) - chalkboard equations stock videos & royalty-free footage00:20Professor writing on blackboard (timelapse)Professor, Mathematics, Physics
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ms young woman writing mathematical formula on blackboard / singapore - chalkboard equations stock videos & royalty-free footage00:08MS Young woman writing mathematical formula on blackboard / SingaporeTeacher, Mathematics, Mathematical Symbol
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ms young woman writing mathematical formula on blackboard in classroom / singapore - chalkboard equations stock videos & royalty-free footage00:05MS Young woman writing mathematical formula on blackboard in classroom / SingaporeMathematics, Mathematical Symbol, Education
sun in orange sky, sunset, trees, branches & leaves in silhouette, male scientist writing equation underneath 'sub-solar surface', 'convection',... - chalkboard equations stock videos & royalty-free footage00:141968: SOLAR RESEARCH: HD: WS Sun in orange sky, sunset, trees, branches & leaves in silhouette, MS ZI Male scientist writing equation underneath 'sub-solar surface', 'convection', 'currents' on blackboard. Astronomy, solar physics, science, mathematics.Mathematics, Scientist, 1960-1969
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presents interviews with four scientists who explore their thought processes, personalities, and methods of work as they analyze ways by which they... - chalkboard equations stock videos & royalty-free footage00:351970s: Man monitors graph printer in lab. Man writes equations on chalk boardMathematical Symbol
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ms young woman writing mathematical formula on blackboard / singapore - chalkboard equations stock videos & royalty-free footage00:10MS Young woman writing mathematical formula on blackboard / SingaporeMathematics, Mathematical Symbol, Teacher
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/ albert einstein writing an equation on blackboard, then going to sit down behind his desk. albert einstein in his office at princeton university on... - chalkboard equations stock videos & royalty-free footage00:14Albert Einstein in his office at Princeton UniversityAlbert Einstein, Office, Princeton University
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little scientist - chalkboard equations stock videos & royalty-free footage00:16Little ScientistChild, Contemplation, Learning
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professor talking to students - chalkboard equations stock videos & royalty-free footage00:31Professor talking to studentsTeacher, Mathematical Formula, Lecture Hall
the boy writes on the blackboard - chalkboard equations stock videos & royalty-free footage00:22the boy writes on the blackboardChild, School Building, Teaching
mad scientist very frustrated by error in calculations - chalkboard equations stock videos & royalty-free footage00:10Mad scientist very frustrated by error in calculationsMathematics, Mathematical Symbol, Humor
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examines the determined purpose and accomplishments of jewish immigrants to their homeland--the planning and growth of israel's cities, reclamation... - chalkboard equations stock videos & royalty-free footage00:211970s: Person writing math equations on paper. Man writing math equationsTeacher, University, 1970-1979
sailor writes mathematical equations on a chalkboard. - chalkboard equations stock videos & royalty-free footage00:13A U.S. sailor writes mathematical equations on a chalkboard.
inside a classroom at the dupont experimental station, a group of scientists are seen crowding around a table while another man stands alongside a... - chalkboard equations stock videos & royalty-free footage00:10Scientists inside a classroom at the DuPont Experimental Station, U.S.A., 1951Classroom, Science
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presents interviews with four scientists who explore their thought processes, personalities, and methods of work as they analyze ways by which they... - chalkboard equations stock videos & royalty-free footage00:341970s: Man writes equations on blackboard as colleagues watchMathematical Symbol
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math formulas background (loopable) stock video - chalkboard equations stock videos & royalty-free footage00:13Math Formulas Background (Loopable) stock videoGreen Background, Mathematics, Calculating
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writing formula on chalkboard - chalkboard equations stock videos & royalty-free footage00:05CU Writing Formula on ChalkboardClose-up, Handwriting, 1960-1969
'e=mc2' is written on a clear board - chalkboard equations stock videos & royalty-free footage00:12'E=mc2' is written on a clear boardPhysics, Mathematical Formula, Pen
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writing, math and person planning on glass with research in economy with data analysis and problem solving. woman, expert and test solution with calculation and results on window or board in office - chalkboard equations stock videos & royalty-free footage00:07Writing, math and person planning on glass with research in economy with data analysis and problem solving. Woman, expert and test solution with calculation and results on window or board in officeWomen, Mathematics, Glass - Material
professor writing on blackboard - chalkboard equations stock videos & royalty-free footage00:14Professor writing on blackboardTeacher, Mathematics, Physics
