the big bang theory the locomotive manipulation

The EGR system routes a number of the exhaust gases (6 ? 10%) from the EGR valve, last on the Intake System, and ultimately within the combustion chamber. The exhaust gases are inert i.e. they cannot burn in the combustion chamber; also, the exhaust gases take up a number of the space which would preferably be taken with the intake air. This reduces the volume of intake air readily available for the combustion process during each Power Stroke; which in turn decreases the peak combustion temperatures. This brings about lower NOx emissions. Steam brought plenty of changes for the Victorian era, as steam-powered machines were everywhere. Steam was at nearly every section of their lives. They now had factories with machines that could replace people. Some of those people became professionals, and also the office worker arrived to prominence. Goods may be produced on a massive scale, also remember they now had steam engines which could transport goods extensively. It was a time of telecommunication on their behalf, and traveling which could be done via steam-engine trains and ships. It was a time of changes, indeed.