« Why SpaceX Will Catch Super Heavy | Main | Reusable Handwarmers That Get Hot by Freezing »
Friday, January 29, 2021
CONTINUITY: Cog Railway Switch
Cog railway tracks for steep mountain trains sometimes use this peculiar kind of junction switch. This one is in Obwalden, Switzerland [source: https://t.co/lBdT0HfyPR] pic.twitter.com/6LLGIFMWgU
— Massimo (@Rainmaker1973) January 28, 2021
Posted at January 29, 2021 12:36