A telescope is like a "light bucket". The amount of light it can gather is proportional to the area of its opening or "aperture".
"Next step is collimating the telescope. A telescope is like a musical instrument. If badly tuned, it cant play nice music. If the optical axis of the mirrors are not adjusted, the image contrast and detail will suffer tremendously."
"A telescope is like a small bucket. Light from planets, stars and galaxies "rains down" on Earth, and a telescope collects this light and lets us look at the object ..."
METAMIA is a free database of analogy and metaphor. Anyone can contribute or search. The subject matter can be anything. Science is popular, but poetry is encouraged. The goal is to integrate our fluid muses with the stark literalism of a relational database. Metamia is like a girdle for your muses, a cognitive girdle.