The Exploratorium Laboratory 
Lot of 2 Books - New Condition (open envelope)
ISSN 0889 8197
Please see pictures for complete item description
Thanks  -  mr.marc12345

"The Exploratorium is a museum of science, technology, and arts in San Francisco, California. Founded by physicist and educator Frank Oppenheimer in 1969, the museum was originally located in the Palace of Fine Arts and was relocated in 2013 to Piers 15 and 17 on San Francisco's waterfront. The museum has over 1,000 participatory exhibits and is divided into several galleries, mainly separated by content. Since its inception, the Exploratorium has expanded into other domains and has inspired an international network of participatory museums.Wikipedia