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Male hand is writing Einstein's Formula E=mc2 on a blackboard

Stock Photo:
Image ID: 114338653
Release Information: N/A
Copyright: S-F
Small
500x334 6.9"x4.6" (72dpi) 172 KB
Med
1000x667 3.3"x2.2" (300dpi) 647 KB
Large
5616x3744 18.7"x12.5" (300dpi) 9.2 MB
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