Keywords: Josephson voltage standard, containing 20,144 elements in series, used by NMIJ of the National Institute of Advanced Industrial Science and Technology - National Museum of Nature and Science, Tokyo - DSC07830.JPG en Exhibit in the National Museum of Nature and Science Tokyo Japan Photography was permitted in the museum without restriction 2013-09-05 02 32 22 own Daderot cc-zero Scientific instruments in the National Museum of Nature and Science Tokyo Uploaded with UploadWizard Voltage standards |