Mysterious tunnels in desert rocks may be the work of unknown microbes, hinting at a hidden world inside marble and limestone ...

Step 2: Tightly pack your frame with tunnels Now you have your bee hotel's frame, the next step is to pack it with tubes and tunnels. The goal is to fill up the entire hotel with these ...

While it sounds far-fetched, the basic technology needed to build the tunnel has already been developed. Using vacuum tubes and magnetically levitating trains, friction could be reduced to nearly ...

The next, if our tour guide and London Tunnels CEO Angus Murray’s vision ... running underneath the Northern and Central tube lines, more than 365 meters long and five meters wide (1,200 feet ...

Its name refers to the lava tubes, or tunnels, that run through the reef. Travelers can expect to see batches of coral, small sea caves and tunnels as well as wildlife, which could include turtles ...

If the tunnels were indeed moving, Rea asserted, the matter needed to be taken on immediately. The PRR's engineers considered several ideas to solve this potentially devastating problem.

The Ludwieg Tube Wind Tunnel, Göttingen (RWG) is the world's first intermittently operating large-scale aerodynamic research facility that functions according to Ludwieg's tube wind tunnel principle.

The Big Obstacle In August 1865 early snows defeated the Central Pacific's initial attempt to begin work on Tunnel No. 6, the Summit Tunnel. The grand engineering feat of the Sierra Nevada would ...