Right click on the image below and then select "Save image as" option to save the image for your powerpoint presentations. Or press "Snap Photo" again to take another image!
Gravity Road
This animated video shows a car on what seems to be a shallow decline. When the visual miscues are removed we see the car is actually on an incline. Many places where cars "mysteriously" roll the "wrong" way take on such names as Gravity Hill.