Popular Mechanics is a popular technology magazine, which was first
published by H. H. Windsor, and has been owned since 1958 by the
Hearst Corporation. There are nine international editions. Popular
Mechanics features regular sections on automotive, home, science,
outdoors, and technology topics.
 

January, 2013 issue

In 1914, American chemist John J. Porter produced the first line of chemistry sets, “Chemcraft.” It was such a hit that a few years later, science fanatic A.C. Gilbert, maker of Erector Sets and, later, American Flyer model trains, put out his own chemistry sets.

Apollo 17 crew from left: Lunar Module Pilot Harrison Schmitt,
Commander Eugene Cernan, and Command Module Pilot Ronald
Evans (seated).

Launch time was at 12:33 a.m. Eastern Standard Time

                 
                     David Warren "Dave" Brubeck

             (December 6, 1920 – December 5, 2012)