The Pennsylvania Railroad (PRR)’s T1 class is famous for many reasons: being enormous, being a duplex, possibly having beaten ...

Renewable energy is energy that comes from sources that are readily replenishable on short-timescales. Examples of these are solar radiation, wind, and biomass. The commercial use of perovskite solar ...

A DISCUSSION on the standards of comparison in connexion with the thermal efficiency of steam engines was held at the Institution of Civil Engineers on Thursday, December n. The Heat Engine and Boiler ...

Which is faster—the steam or electric locomotive? On the face of the latest returns, the “juice” seems to have it. At Erie, Pa., last week a speed of 105 miles an hour was attained over a short test ...