engraved hand drawn old sketch and vintage style scientific formulas calculations physics mathematics |
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| navigate by keyword : abstract atom background biology biotechnology business chemical chemistry connection design dna doodle drawing education element experiment flask formula geometric graphic hexagon icon illustration lab laboratory medical medicine modern molecular molecule paper pattern physics research school science scientific seamless shape sketch structure symbol technical technology template test texture vector wallpaper white |
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| Engraved hand drawn in old sketch and vintage style. scientific formulas and calculations in physics and mathematics or astronomy on whiteboard. Education and Science. Seamless pattern |
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