Station at Friedrichstrasse, Showing: Intermediate Station. Hum is imperceptible. Since a sudden change of equi-librium causes an oscillation proportionate to thevelocity and the angle determined by the radius of thecurve, which oscillation lies within twice the value ofthis angle, comparatively… … The Station at Doppersberg.THE LANGEN SUSPENSES RAILWAY. gradually changed, withthe result that almost in-appreciable oscillations areproduced. On the supporting struc-ture at Elberfeld the max-imum oscillation is 15 deg.,corresponding to a speedof 55 kilometers per houron a curve having a radiusof…
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