Heh heh. Making milk shakes.256bits said:
The concept of making the train change directions just by looking at one point is based on the optical illusion known as the "spinning silhouette." By focusing on one point while the train moves in a circular motion, the brain perceives the train to be changing directions when in reality, it is still moving in the same direction.
The train is not physically changing directions. It only appears to be changing directions due to the optical illusion created by the spinning silhouette. This illusion is a result of the brain's interpretation of the visual information received from the eyes.
This phenomenon can be observed with any object that moves in a circular motion and has a distinct shape. It is commonly demonstrated with a train, but it can also be observed with a car, bicycle, or even a spinning top.
The phenomenon of the train appearing to change directions is caused by the brain's perception of the spinning silhouette. When we focus on one point while the train is moving in a circular motion, our brain tries to make sense of the visual information and creates the illusion of the train changing directions.
Yes, there is a scientific explanation for this illusion. It is known as the "motion aftereffect" or the "waterfall illusion." It occurs when the brain adapts to a constant stimulus, in this case, the circular motion of the train, and perceives the opposite motion when the stimulus is removed, making the train appear to change directions.