Last night, fella bilong missus flodnak and I were watching a battleship documentary on TV, which left me with two questions I haven’t yet found the answers to. Can any Dopers help?
First, do any navies still have any battleships in service? I know the US Navy decommissioned the last of its ships in this class some years ago.
Second, a handheld gun fires a bullet, a ship-mounted one fires a shell. What exactly is the difference between a bullet and a shell? Is it size, or is it the structure/function (shells explode, bullets don’t)?