radio
"Of course, these recollections relate to a time when Logie Baird's famous invention had barely entered the national consciousness. But I believe the old cliche is still true: radio is like television, only the pictures are better."
"Radio is like food. You spend days and months and hours gathering the ingredients, cutting, mixing, making it cook. The minute it hits air/the table, it's gone - but its transformed. The memory of it lingers, almost like a dream."
"Radio is like a school cafeteria. You get a few options but have to choose from what they've already put out and its all to appeal to the masses.
Internet is like a restaurant where you can order off a menu, then they'll bring you what you ordered.
"
"A radio wave is like a wave in the ocean. It has a top (the
crest) and bottom (the trough) a height called the amplitude
and a length..."
It makes faint electromagnetic signals easier to detect and study.
"a high school teacher: constantly (and fruitlessly) searching for intelligent life."

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.