I'd be interested in an explanation of this too. I experienced this phenomenon while driving and glancing in the side mirror at a truck in the lane almost beside me. I was so fascinated that I'm sure I risked wrecking my car, trying to drive and watch the truck's wheels at the same time. Since then, I have never seen this again.
When I looked directly at the truck's wheels, I didn't see this phenomenon. It was an overcast day, and the truck and I were traveling at approximately the same speed, with the truck just slightly behind me. Beth Benoit University System of New Hampshire ----- Original Message ----- From: "Tom Allaway" <[EMAIL PROTECTED]> To: "Teaching in the Psychological Sciences" <[EMAIL PROTECTED]> Sent: Thursday, April 01, 2004 9:39 AM Subject: A Perception Question > > In a class discussion of the phi phenomenon the other day, the talk > drifted around to stroboscopic phenomena, and the > "wagon-wheels-turning-backward" illusion that you get with films or TV. > I explained this briefly, but several of my students said that it didn't > depend on a flashing or intermittent source of illumination, as they > frequently saw this effect in broad daylight, on the wheels of moving > cars (especially those with wire wheels). I told them I didn't > understand how that could be. > > Can you get this illusion under continuous illumination? How? > > > > > --- > You are currently subscribed to tips as: [EMAIL PROTECTED] > To unsubscribe send a blank email to [EMAIL PROTECTED] > --- You are currently subscribed to tips as: [EMAIL PROTECTED] To unsubscribe send a blank email to [EMAIL PROTECTED]
