Over the course of December at Ninoy Aquino Manila International Airport, the length of the day is essentially constant. The shortest day of the month is December 22, with 11 hours, 16 minutes of daylight and the longest day is December 1, with 11 hours, 20 minutes of daylight.
Definition of nuclear for English Language Learners. : 1  of, relating to, producing, or using energy that is created when the nuclei of atoms are split apart or joined together. : 2  having or involving nuclear weapons. : 3  of or relating to the nucleus of an atom.
nuclear physics. 1. the branch of physics that deals with the behavior, structure, and component parts of atomic nuclei. You and I, between us, knew everything that was going on in nuclear physics in the world. I told you, between us we know everything that was happening in nuclear physics then.