a chalkboard with some writing on it

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HQ Background Images › Art Backgrounds › Simple Backgrounds

a chalkboard with some writing on it

Math equations on a chalk board

Aalto-yliopisto, Tapiola, Suomi

Published on November 9, 2021 (UTC)Apple, iPhone 6s

Free to use under the Unsplash License

suomi tapiola aalto-yliopisto chalk board maths science college degree physics mathematics school university nerd geek physics equation blackboard text alphabet symbol word Creative Commons images

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