4 ms·
Since the speed of sound is lower in tubes, I wonder how late the clocks were at the end of the network.
by whatshisface 4y ago
Since the speed of sound is lower in tubes, I wonder how late the clocks were at the end of the network.
- hulitu 4y agoAs far as i understand the signal was transmitted through telegraph lines, not tubes.
- joezydeco 4y agoIf you're referring to the pneumatic network, one of the footnotes mentions a latency of 10 seconds, but the author does the math and says that's probably not accurate, more like 58 seconds at the 20km max distance. http://www.douglas-self.com/MUSEUM/COMMS/airclock/airclock.htm http://www.douglas-self.com/MUSEUM/COMMS/airclock/airclock.h...
- jbay808 4y agoThe article doesn't seem to mention it, but the clocks were each offset to compensate for the propagation delay. It's a static correction, so easily done by just offsetting the minute hand position. (I can't seem to find the citation on this, though.)