One of the most essential tools used for developing and testing new vehicles is the dynamometer, or "dyno" for short. In this episode of SAE Eye on Engineering, Editor-In-Chief Lindsay Brooke looks at this necessary aspect for measuring vehicle performance. SAE Eye on Engineering can be viewed at video.sae.org/12226. It also airs in audio-only form Monday mornings on WJR 760 AM Detroit's Paul W. Smith Show. Access archived episodes of SAE Eye on Engineering at sae.org/magazines/podcasts.