from Hacker News

The Underground Clocks of Paris

by yakito on 3/4/24, 3:07 PM with 4 comments

• by johncoltrane on 3/4/24, 3:24 PM

  Did you mean "Clacks"? Or was it an attempt to point to https://fr.wikipedia.org/wiki/Sudac_air_service which has no English version AFAIK?

  https://parisianfields.com/2018/03/25/a-question-of-time/

• by dtagames on 3/4/24, 3:25 PM

  Fascinating but mislabeled. This is about the Paris Pneumatic Post, or underground tube message system.

• by yakito on 3/4/24, 4:58 PM

  Video reference: https://www.youtube.com/watch?v=gol_p2aWrJg