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Stephen Sekula (steve@chirp.cooleysekula.net)'s status on Thursday, 07-Sep-2017 01:21:37 UTC Stephen Sekula Last night in #PHYS1010, students explored gravity's pull. A slinky appears to challenge gravity, but its center-of-mass always yields. https://twitter.com/drsekula/status/905599073973043200/photo/1 https://chirp.cooleysekula.net/attachment/40912