Manual - Abus Lis Sv

Vera typed her final manual command of the night:

"The bridge is going to fail in six minutes if a two-hundred-ton train crosses it. But if you can tell me exactly where to shift the counterweights on the western span, I can route the ambulance over the light-vehicle lane and keep the train on the heavy track. They cross simultaneously. Opposite forces. Canceling harmonics." Abus Lis Sv Manual

Then she added, in plain language, a footnote for the machine: Vera typed her final manual command of the