We digitized and uploaded this film from our archive of over 24,000 films. Email us at firstname.lastname@example.org if you have questions about the footage and are interested in using it in your project.
Uses experiments to show the changes in the appearance of motion as viewed from frames of reference moving relative to one another. Demonstrates how Newton’s law of motion can only be applied to inert and accelerated frames of reference when one applies “fictitious” forces to compensate. Buy this film on DVD.