These things were proposed to contain outward-flowing layers called simulacra by a Roman thinker who described their downward motion being interrupted by random deflection. (10[1])Lucretius’ De rerum natura (10[1]-5[1])claims free will is caused by the “swerve” (10[1])of these things. The so-called “laughing philosopher” is best known for his theory of these things, which Leucippus contrasted with the void existing between them. Democritus (10[2])theorized (10[1])that the universe is made of these things, (10[1])which are named for the word for “uncuttable.” (10[2])For 10 points, Greek philosophy conceptualized what smallest units of matter that today name structures containing protons and neutrons? ■END■