We used to take a used locomotive engine, tear it down, rebuild it, and put it back out there. We treated all… — Jamie S. Miller Copy Share Image
“ George Stephenson , with a sagacity of mind in advance of the science of his day, answered, when asked what was… — William Siemens Copy Share Image
For the first time there was constructed with this machine [locomotive engine] a self-acting mechanism in which the interplay of forces took… — Carl Ludwig Copy Share Image
![“For the first time there was constructed with this machine [locomotive engine] a self-acting mechanism in which the interplay of forces took shape transparently enough to discern the connection between the heat generated and the motion produced. The great puzzle of the vital force was also…” quote by Carl Ludwig](https://sms4smile.com/quotes/img-quotes/5b7/carl-ludwig-102465_acting_for-the-first-time-there-was-constructed_2704200.jpg)