precipitation in Culture. In meteorology, the fall of water, ice, or snow deposited on the surface of the Earth from the atmosphere. In chemistry, a chemical reaction in a solution in which a solid material is formed and subsequently falls, as a precipitate, to the bottom of the container.
Join Today! In the United States Air Force, the maximum age allowed to enlist and ship to basic training is 27 years old. In the Air Force Reserves, the maximum age is 34 years old. In the Air National Guard, the maximum age is 39 years old.
1 Between the ages of 17â35 (must ship to basic training prior to 35th birthday). 2  A U.S. citizen or registered alien â U.S. Citizens or Permanent Resident Aliens (people who have an INS I-151/I-551 âGreen Cardâ) may join the U.S. Military.3  Healthy and in good physical condition. Between the ages of 17â35 (must ship to basic training prior to 35th birthday). 2  A U.S. citizen or registered alien â U.S. Citizens or Permanent Resident Aliens (people who have an INS I-151/I-551 âGreen Cardâ) may join the U.S. Military.