- 26 April 2024, 00:27:26
- Welcome, Guest
News:
Please play nicely. No one wants to listen/read a keyboard warriors rants....
- Omega Owners Forum >
- Chat Area >
- General Discussion Area (Moderator: Kevin Wood) >
- Why London Crossrail tunnels had to take into account the curvature of the Earth
Author Topic: Why London Crossrail tunnels had to take into account the curvature of the Earth (Read 3719 times)
0 Members and 1 Guest are viewing this topic.
- Omega Owners Forum >
- Chat Area >
- General Discussion Area (Moderator: Kevin Wood) >
- Why London Crossrail tunnels had to take into account the curvature of the Earth