calutrons
... that the Manhattan Project's calutrons used 14,700 short tons (13,300 t) of silver?
... that the <a href="./Manhattan_Project" id="mwBuI" rel="mw:WikiLink" title="Manhattan Project">Manhattan Project</a>'s <b id="mwBuM"><a href="./Calutron" id="mwBuQ" rel="mw:WikiLink" title="Calutron">calutrons</a></b> used <span about="#mwt70" data-mw='{"parts":[{"template":{"target":{"wt":"convert","href":"./Template:Convert"},"params":{"1":{"wt":"14700"},"2":{"wt":"ST"}},"i":0}}]}' id="mwBuU" typeof="mw:Transclusion">14,700 short tons (13,300</span><span about="#mwt70" typeof="mw:Entity"> </span><span about="#mwt70">t)</span> of silver?