Jim Dunmyer wrote in a message to Alec Cameron:
 > Thus the train was propelled by air pressure [15psi]. Neat. It 
 > worked.
 JD> There was an experimental subway train in New York City that 
 JD> was propelled by vacuum also. The station, a car, and other 
 JD> remnants still exist, buried deep beneath the city streets. It 
 JD> failed due to political problems more than due to technical 
 JD> considerations. (well, at the time: it probably wouldn't have 
 JD> been a long-term success anyway.....)
Was there really?  Where did you hear about this?  I used to ride that system 
all the time,  and have been fascinated by it for years...
email: roy.j.tellason%tanstaaf@frackit.com 
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