An ounce is a unit of weight which is approximately equal to 28  grams. One gallon is equal to 128 ounces so there are 640 ounces in  5 gallons of water.
The first U.S. railroad to use a steam locomotive in revenue service was the South Carolina Railroad. It opened on Christmas Day 1830 using the Best Friend of Charleston steam locomotive on six miles of track in Charleston, South Carolina.
This was the first outing of the worldâs first public passenger steam train. By 1830 Stephensonâs new locomotive, the Rocket, which could achieve a speed of 36 miles per hour, was operating on the Liverpool and Manchester Railway in Lancashire with other âiron horsesâ built in the factory he had now opened in Newcastle. The railway age had begun and George Stephenson was its guiding spirit.