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.
In the United States Army, Army Reserves, and Army National Guard, the maximum age allowed to enlist and ship to basic training is 35 years old. The Army experimented for quite some time allowing anyone up to the age of 42 years old to enlist and complete basic training.
There were soldiers of all ages that fought during the war. The average age for the Union Army was around 25 years old. The minimum age to join the army was 18 years old, however, it's thought that many young boys lied about their age and, by the end of the war, there were thousands of soldiers as young as 15 years old.