GUNNERY CHIEF: This, recruits, is a 20-kilo ferrous slug. Feel the weight. Every five seconds, the main gun of an dreadnought-class ship accelerates one to 1.3 percent of light speed. It impacts with the force of a 38-kiloton bomb. That is three times the yield of the city buster dropped on Hiroshima back on Earth. That means Sir Isaac Newton is the deadliest son-of-a-bitch in space. What is Newton's First Law?

SERVICEMAN BURNSIDE: Sir! A object in motion stays in motion, unless acted on by an outside force, sir!

GUNNERY CHIEF: Damn straight! I dare to assume you ignorant idiots know that space is empty. Once you fire this monster it keeps going till it hits something. That can be a ship, or the planet behind that ship. It might go off into deep space and hit somebody else in ten thousand years. If you pull the trigger on this, you are ruining someone's day, somewhere and sometime. That is why we wait for the computer to give you firing solution! That is why we DO NOT EYEBALL IT.