In an inertial frame of reference, a body with zero net force acting on it does not accelerate. When scientists speak of inertial frames of reference, they're invoking a coordinate system with no ...

One feature of spatial cognition is the ability to simultaneously discern position in multiple external (that is, non-egocentric) frames of reference. Although hippocampal and entorhinal cortical ...

When walking through an unfamiliar city, we might rely on different types of directions. Head east out of the train station, take a left at the stoplight, turn at the building with the mural. To move ...

Many years ago, I was hiking with my family in the mountains. I began to suffer from hay fever, so I walked down to the valley to a convenience store to buy some allergy medicine. After searching the ...