In this task you will be given a text passage from a trivia quiz. You should choose the category this question belongs to from these categories: History, Science, Social Science, Fine Arts, Literature. You can only choose one category, so if in doubt, please choose the closest match.

[EX Q]: The electron dipole moment of this particle is at most three times ten to the negative 26th, and would violate CPT-symmetry if it is non-zero. This particle has a half-life of 881 seconds, and can break up into a proton, an electron and an electron antineutrino via beta decay. This particle is composed of one (*) up and two down quarks, and nuclear fission is initiated by the bombardment of this particle. The number of this particle dictates what isotope an atom is, and they have mass roughly equal to that of a proton. James Chadwick discovered, for ten points, what particle found in the nucleus, which, as its name suggests, has a net charge of zero
[EX A]: Science

[EX Q]: It causes the weak bluish white glow in polls of water that shield some nuclear reactors. It is created by highly energetic charged particles that displace electrons in the medium through which they travel, and the subsequent electromagnetic wave in the wake of these particles is similar to the bow wave of a fast boat. FTP, what is this light produced when charged particles move through a medium faster than the speed of light in that medium
[EX A]: Science

[EX Q]: Friedrich Nietzsche, in Ecce Homo, wrote that he feels "warmest" in proximity to this philosopher, because this philosopher affirms the need for destruction. Hegel, in his Lectures on the History of Philosophy, claims that his own logic adapts all the thought of this man, who proposed a cosmic "downward path" and "upward path." A finger-wagging follower of this man discusses the nature of words in Plato's dialogue Cratylus. This man's term aletheia was glossed as "disclosure" of truth by Martin Heidegger. This native of Ephesus discussed the attunement of the bow and lyre, and posited a unity of opposites. His belief in nature as "flux" might explain his adage that you can't step in the same river twice. For 10 points, name this pre-Socratic who said all things come from and return to fire.
[EX A]:
Social Science