<a class="mw-redirect" href="https://en.wikipedia.org/wiki/Leó_Szilárd" id="mwlg" rel="mw:WikiLink" title="Leó Szilárd">Leó Szilárd</a>, waiting for a red light on <a class="mw-redirect" href="https://en.wikipedia.org/wiki/Southampton_Row" id="mwlw" rel="mw:WikiLink" title="Southampton Row">Southampton Row</a> in <a href="https://en.wikipedia.org/wiki/Bloomsbury" id="mwmA" rel="mw:WikiLink" title="Bloomsbury">Bloomsbury</a>, conceives the idea of the <a href="https://en.wikipedia.org/wiki/Nuclear_chain_reaction" id="mwmQ" rel="mw:WikiLink" title="Nuclear chain reaction">nuclear chain reaction</a>.