Coming to reality is an engineering distinction that will theoretically take you from New York to London in 54 minutes.
The train will be speeding at 5000 mph through a 3,100 mile long tunnel adding more to it the tunnel is floating in the Atlantic Ocean. Well this will be the grand new once completed “Transatlantic tunnel”. A floating tunnel has never been built, even on a small scale. To work across the Atlantic Ocean would require that each section be anchored to the sea floor with tethers, more than 100,000 of which would be required. They would have to let the tunnel float 150 feet below the surface, ideal to avoid ships and still minimize pressure, and also to sway a bit under pressure. The tunnel would be powered by electricity, which would have to be accessible for 3,100 miles. The utility conduit would house the electrical wiring.
The train would link New York and London, and passengers could continue to Paris. The train’s high speed would allow passengers literally to dine on one continent and eat dessert on another. The tunnel would have to withstand some of the Atlantic’s strongest currents, including parts of the Gulf stream. To reach from New York to London, the tunnel would be built of 54,000 prefabricated sections, connected by watertight and vacuum-tight gaskets, and would take decades to complete. The tethers holding the tunnel in place would be connected to the Atlantic floor by anchors, in some places almost five miles deep in an earthquake-prone zone.
The train would not actually ride on the tracks, but would rather be magnetically suspended about an inch above the track. Anchored to the sea floor from below, the tunnel would hover at about 150 feet below the sea surface. Above and below the tracks, service tubes would provide electrical power, communications and access for repairs. The entire tunnel might require 1 billion tons of steel, cost $12 trillion, and take decades to build.
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