In the south of Denmark a mega project is underway to build a tunnel under the Baltic and providing a link to Germany. It's currently Europe's biggest construction site and the world’s longest ...

Gunpowder was first used in 1679, to build an underground section of the Canal du Midi, a canal connecting the Atlantic Ocean and the Mediterranean Sea. The tunnel was 157 meters long ...

The Straight Cascade Tunnel, installed at the DLR Institute of Propulsion Technology in Göttingen, is a versatile facility for detailed experimental investigation of flow processes within ...

The Channel Tunnel linking Britain with France is one of the seven wonders of the modern world but what did it take to build the longest undersea tunnel ever constructed? We hear from the men and ...

The transonic cascade wind tunnel (TGK) is installed at the Institute of Propulsion Technology in Cologne. This large-scale facility is used for investigations on compressor blade cascades; it is the ...

The building of the Channel Tunnel, one of the engineering wonders of modern times. Shows the planning, construction, completion and aftermath. In particular it shows the problems that had to be ...