backscattering spectroscopy
...that the experiment which outlined the principles behind backscattering spectroscopy was described by Ernest Rutherford as "the most incredible event that has ever happened to me in my life"?
...that the <a class="mw-redirect" href="./Geiger-Marsden_experiment" id="mwCnw" rel="mw:WikiLink" title="Geiger-Marsden experiment">experiment</a> which outlined the principles <i id="mwCn0">(pictured)</i>  behind <b id="mwCn4"><a class="mw-redirect" href="./Rutherford_backscattering_spectroscopy" id="mwCn8" rel="mw:WikiLink" title="Rutherford backscattering spectroscopy">backscattering spectroscopy</a></b> was described by <a href="./Ernest_Rutherford" id="mwCoA" rel="mw:WikiLink" title="Ernest Rutherford">Ernest Rutherford</a> as "the most incredible event that has ever happened to me in my life"?