Adolf Carl Noé
... that Adolf Carl Noé challenged disbelief in the possibility of North American coal balls by presenting a wheelbarrow full of them?
... that <b id="mwBA0"><a href="./Adolf_Carl_Noé" id="mwBA4" rel="mw:WikiLink" title="Adolf Carl Noé">Adolf Carl Noé</a></b> challenged disbelief in the possibility of North American <a href="./Coal_ball" id="mwBA8" rel="mw:WikiLink" title="Coal ball">coal balls</a> <i id="mwBBA">(example pictured)</i> by presenting a wheelbarrow full of them?