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@ann_ruckert: @mathphoto16 some very interesting maths/physics concepts here, don't you think? #mathphoto16. https://t.co/fJ8JmhiU0R | by tads2

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@ann_ruckert: @mathphoto16 some very interesting maths/physics concepts here, don't you think? #mathphoto16. https://t.co/fJ8JmhiU0R

@mathphoto16 some very interesting maths/physics concepts here, don't you think? #mathphoto16. t.co/fJ8JmhiU0R - @ann_ruckert

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Uploaded on August 13, 2016