04:1504:15, 6 December 2007diffhist+19,756
Steam locomotive
→Superheating: Major changes to superheating section to make it more readable and provide a better explanation. I have also made it it's own separate section, given it's relative importance.
13:2213:22, 25 September 2007diffhist+194
New York Central Niagara
Added heading The 1946 Steam Versus Diesel trials and text: The locomotives were run along the 928 miles from New York to Chicago via Albany, Syracuse and along the shores of the Great Lakes and retur