To maintain the ‘highly reliable performance’ reputation, during development, Porsche torture-tests its Engines on a Hydraulic Rig that Tilts, Twists & Shakes it vigorously for hundreds of hours while it is revved to circuit-racing levels, simulating Endurance racing-levels of Stresses and G-Forces
This lady can control the pupil’s dilation and constriction. This video is the demonstration of voluntary pupil dilation and constriction, challenging conventional understanding of autonomic nervous system control, as studied in a 2021 ScienceDirect publication.