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  1. DanielRonn

    Need to calculate if a large boulder can be moved by a river!!

    Hi. For environmental purposes, we need to calculate the minimal water/ice SPEED needed from the river to be able to move this large boulder laying on top of the rocky riverbed. The river is in Canada and fed by rainwater only. This is a non-profit project. Please advise on a formula to use. It...

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