Argonne National Laboratory

Learning about the SEM in the Electorn Microscopy Center. John showed us the worldest smallest space shuttle (100 times smaller than the width of a human hair) etched with a gallium ion bean onto a surface. 

Armani and Maraquita looking in on testing of the Chevy Volt. Though you can't tell from the outside, the room was 20 F inside for cold weather efficiency testing.