समुद्र के नीचे 50 KM लंबी सुरंग कैसे बनी? | How Engineers Built The Channel Tunnel

समुद्र के नीचे 50 KM लंबी सुरंग कैसे बनी? | How Engineers Built The Channel Tunnel How did engineers dig a 50 km long tunnel under the English Channel without modern GPS and satellite technology in the 1980s? In this documentary, we explore the incredible engineering marvel of the Channel Tunnel (Eurotunnel) that connects the United Kingdom and France beneath the seabed. Discover the massive Tunnel Boring Machines (TBMs), the deadly water leakages, and the intense race where two teams drilled from opposite sides to meet in the middle with pinpoint millimeter accuracy. ⏱️ Timestamps: 00:00 - The 100-Meter Deep Danger & Hook 00:30 - A 200-Year-Old Dream & The English Channel 01:45 - The Monster Tunnel Boring Machines (TBM) 03:15 - The Alignment Mystery: No GPS Challenge 04:45 - The Historic Breakthrough Under the Sea 06:15 - Is the Channel Tunnel 100% Safe Today? 07:30 - Outro & What’s Next 🔔 Subscribe to B Experiment for more thrilling engineering documentaries, science facts, and mega-project mysteries! #ChannelTunnel #Megaprojects #EngineeringMarvels #Documentary #ScienceFacts