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Scientific American is part of Springer Nature, which owns or has commercial relations with thousands of scientific publications (many of them can be found at www ...
Fairly complete data are given of ten electric railways in eight ... horse-power and the articulated express locomotives of the Pennsylvania Railroad can supply 9,500 horse-power for a short ...
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Trains on MSNLionel revives its classic Pennsylvania RR S2 Steam TurbineLionel revives its classic Pennsylvania RR S2 Steam Turbine in this article from Classic Toy Trains and Roger Carp.
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