close
    ON TV COMMERCIALS, WHY DO VEHICLE TIRES LOOK LIKE THEY ARE SPINNING CLOCKWISE.

    0  Views: 961 Answers: 1 Posted: 10 years ago

    1 Answer

    Movies are shot at 24 frames per second (typically, not counting Maxivision and other uncommon formats). As a wheel (or a propeller) spins up, it will rotate at increasing RPMs. The wheel's rotation rate will have a certain resonance with the 24 fps shooting rate of film. At some resonances, the wheel will appear to be spinning slowly forward. At RPMs closely resonant with the 24 frames, the wheel will appear to be standing still (if blurrily). Going past that rate will cause the appearance of slow backward rotation.


    Top contributors in Cars & Transportation category

     
    Colleen
    Answers: 831 / Questions: 0
    Karma: 12830
     
    ROMOS
    Answers: 248 / Questions: 0
    Karma: 10620
     
    Deleted User
    Answers: 172 / Questions: 0
    Karma: 4500
     
    pythonlover
    Answers: 94 / Questions: 0
    Karma: 2370
    > Top contributors chart

    Unanswered Questions

    What is Natural Remedies for Cellulitis
    Answers: 0 Views: 3 Rating: 0
    How to Find Kalyan Matka Jodi?
    Answers: 0 Views: 16 Rating: 0
    How to Find Kalyan Matka Jodi?
    Answers: 0 Views: 15 Rating: 0
    How to Find Kalyan Matka Jodi?
    Answers: 0 Views: 15 Rating: 0
    > More questions...
    446957
    questions
    717244
    answers
    679526
    users