A true event: the laser reflector on the moon
Zach’s clueless concerns for the moon infuriate Sheldon - he really could have asked some better questions. For example, how is it possible for a human-made laser beam to travel roughly 384,000 km through space and hit an object the size of a small suitcase? This feat is equivalent to a bullseye on a penny coin at about 120 kilometers. Or: How could this moon mirror still be working after more than 50 years? How has it survived numerous solar eruptions and the extremely aggressive cosmic UV radiation that destroys nearly all the materials we know of here on Earth within a short time?