PITTSBURGH (KDKA) - I met a gentleman at a restaurant who wanted to know why wheels that are moving a vehicle forward sometimes look like they are spinning backward. While this is a weird phenomenon, ...

Question: Why do car wheels appear to spin backwards in movies? Answer: If you’ve ever seen a Penn & Teller show in Las Vegas or been gob-smacked by this famous M.C. Escher illustration or a drawing ...

An optical illusion exists called the Wagon Wheel effect. When the wagon wheel effect is taking place, a spoked wheel appears to rotate in a different direction than its true rotation. As you stare at ...

While watching a car drive in movies or even in real life, have you ever noticed that the wheel appears to be spinning backwards? This is especially apparent when the vehicles are travelling at a ...

When you are driving at highway speeds and you look at the wheels of some adjacent cars, they sometimes appear to be rotating backwards. What causes this visual effect? asks David Berkof Melville ...

…what do they have in common? The answer can be found it the latest issue of Physical Review Letters. In 1831* Michael Faraday published a paper in the Journal of the Royal Institute of Chemistry ...