Date: 1880s / Subject: employees--rating of - Cornell University Library Digital Collections Search Results

Start Over 1880s employees--rating of

1. Mosso-Ergograph (after H. Lehmann), a devise used to measure muscle fatigue and work capacity from repeatedly moving a finger.

Collection:: Early 20th Century Engineering Lantern Slides
Set:: H. I. M. (Human Interaction Management)
Date:: 1880s
Format:: Image
Agent:: unknown