How did the LNER Class A4 set the world speed record for steam trains? We break down the science, mechanics, and history behind this legendary locomotive.

ALBUQUERQUE, N.M. (KRQE) – A World War II-era steam locomotive is back up and running in Albuquerque. On Sunday, the Atchison, Topeka, and Santa Fe 2926 steam locomotive moved under its own po… ...