ZETA
... that in May 1958, eight months after John Cockroft had announced with great fanfare that the British-designed ZETA device had achieved nuclear fusion, he was forced to retract this claim?
... that in May 1958, eight months after <a class="mw-redirect" href="./John_Cockroft" id="mwDmQ" rel="mw:WikiLink" title="John Cockroft">John Cockroft</a> had announced with great fanfare that the British-designed <b id="mwDmU"><a class="mw-redirect" href="./ZETA" id="mwDmY" rel="mw:WikiLink" title="ZETA">ZETA</a></b> device <i id="mwDmc">(pictured)</i> had achieved <a href="./Nuclear_fusion" id="mwDmg" rel="mw:WikiLink" title="Nuclear fusion">nuclear fusion</a>, he was forced to retract this claim?