100+ Famous picture PowerPoint (PPT) Presentations, Famous picture PPTs

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Count the black dots

Count the black dots. Despite what your eyes tell you, they are perfectly parallel. Are the horizontal lines parallel ?. Is the circle in the left center larger than the one in the right center ?. Stare intently at the black dot for about twenty seconds, and the gray haze will fade away. .

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377 views • 17 slides

Kent State Massacre

By: Kayla Kraeer. Kent State Massacre . Background. Kent State University in Ohio The shooting happened May 4, 1970 It was supposed to be a four day peaceful protest Turned into a tragedy. Root of the Problem.

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554 views • 13 slides

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Famous picture - PowerPoint PPT Presentation

Count the black dots

Kent State Massacre