Two Suns in the Sunset
As a fifth-grader my history teacher gave me and one of my classmates an extra task, one might say a riddle. I believe the reason was that there was a certain kind of rivalry between us as to who “knew more” in class. In any case in the days before the Internet, anything we thought we knew came from class or books– remember them? The question was “what does ‘e = mc2‘ mean? A couple of days later he asked us for our answers. My classmate, Richard, said he could not complete the task because he could not find the Roman numeral “e”.
