Final answer:
Projection in physics refers to how objects appear to a viewer based on their distance; objects closer appear larger and those further away appear smaller, similar to viewing crowds in a stadium from different distances.
Step-by-step explanation:
Projection is akin to visuals reaching the last person in the last row of a distant balcony. This analogy helps us understand the concept of perspective in physics and how our perception of different objects changes with distance. The concept is similar to taking a photo in a stadium: people close by appear larger, and you can fit fewer in your frame, whereas people far away look smaller but you can fit many more into the same frame. This principle resembles how the Hubble Space Telescope observes galaxies—the fainter (and thus typically further away) the galaxies are, the more of them appear within Hubble's field of vision.