Thomas Cummings has been making puzzle boxes for his family and friends in his Georgia workshop for years.  Some recipients of his handiwork have apparently deserved particularly devious designs, and Thomas seems to relish the opportunity to inflict his puzzle passion on the willing. 

Einstein first presented his theory of general relativity on November 25, 1915, in front of the Prussian Academy of Science, which makes this Thanksgiving season one with some serious gravity.  General relativity upped the ante from “special relativity”, which he introduced 10 years earlier, by adding acceleration to the mix.