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.
So, Trevithick invented the first train, Stephenson the first public railway line and the original Steam locomotive was invented and patented by James Watt in 1784, following many years of his work in improving steam engines in general.ichard Trevithick invented the first steam locomotive in 1803, but the iron rails couldn't carry the weight. From there, George Stephenson is credited with the first practica â¦ l steam locomotive.