  We propose an explanation of the title of Prof. James Moriarty's
treatise_Dynamics of an Asteroid_, a scientific work mentioned by Sherlock
Holmes in_The Valley of Fear_ and prominently featured in Guy Ritchie's 2011
film_Sherlock Holmes: A Game of Shadows_. Our views on the subject differ from
those expressed in Isaac Asimov's "The Ultimate Crime".

Popular Physics