Michelson's
"she-devil" ruling machine.
Michelson labored for thirty years to perfect his temperamental ruling machine, which he said required "humoring, coaxing, cajoling - and even some threatening!" The machine cut thousands of parallel grooves on small plates of metal. These diffraction gratings were crucial for analyzing light.
Michelson labored for thirty years to perfect his temperamental ruling machine, which he said required "humoring, coaxing, cajoling - and even some threatening!" The machine cut thousands of parallel grooves on small plates of metal. These diffraction gratings were crucial for analyzing light.