- 29 March 2024, 15:17:24
- Welcome, Guest
News:
Please check the Forum Guidelines at the top of the Newbie section
- 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 3687 times)
0 Members and 2 Guests 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