Professor cleans board with formulas appurtenant to lasers - ストックフッテージ＆ビデオ

Time-Lapse of the Brilliant Young Mathematician Writing Formula on the Blackboard.

Young teacher near chalkboard in school classroom talking to class Professional shot on BMCC RAW with high dynamic range. You can use it e.g in your commercial video, school, college, education

Digital animation of a woman writing on a board in a classroom with mathematics foreground

4K Time lapse scientist writing maths formulas on blackboard

Professor writes formulas for force of Newtons second law

Back of girl erasing text September 1 on chalkboard in classroom at school

Boy stands near green chalkboard with ABC in classroom at school and erases

Professor writes scheme on board with formulas appurtenant to lasers

Boy stands near green chalkboard with ABC in classroom at school and draws by chalk

Puzzled boy stands against chalkboard covered with writing