Lava tubes formed from mafic lava form when the lava forms a crust over itself, creating a tube through which it can flow and later leave empty. Felsic lava forms a crust, but is too viscous to entirely flow out of it.
There is no such thing as the "English chunnel" - indeed there is no such thing as a "chunnel". The term however, was coined from the term "Channel Tunnel" where it became the pseudonym "Chunnel" The English Channel which is itself a body of water separating Britain from France. There is the Channel Tunnel, which is a rail tunnel that goes UNDER (not though) the English Channel and links Britain to France.
Summit Tunnel fire happened in 1984.
The longest road tunnel in the world at 24.51 km (15.23 miles) long, is known as the Lærdal Tunnel and is located in Norway!
"Baals wind tunnel" likely refers to a wind tunnel named after renowned aerodynamicist Ludwig Prandtl. Prandtl's work on wind tunnels in the early 20th century was foundational in understanding aerodynamics, and his name is often associated with wind tunnel research and design.
First, it would not be a tunnel because tunnels basically go along sideways rather then down, it would be a well. The radius of the Earth is 6,371 km and this is how deep the well would be.
It's a cave.
The Channel Tunnel is called the Channel Tunnel. It doesn't have any other name. It is owned and operated by a company called 'Eurotunnel'. Some people confuse the company name with the Channel Tunnel itself, but that is incorrect.
400ft
The Channel Tunnel is called the Channel Tunnel. It doesn't have any other name. It is owned and operated by a company called 'Eurotunnel'. Some people confuse the company name with the Channel Tunnel itself, but that is incorrect.
it is an underground passage driven through the natural obstacle for various purposes such as transportataion, sewage and hydropower generation By sewlikar
http://www.vapormusicgroup.com They have a video of this commercial. They specialize in commercials and radio work, and Audi commissioned them to produce the music for the "Audi - Tunnel" commercial.
Yes, the Lincoln Tunnel (and the Holland Tunnel) run underneath the riverbed, not under the surface of the water and through the river itself. In other words, they do not run underwater, but under the bottom of the river.
They started a special tunnel digging machine from each end. The two machines met in time to join the two bores into one tunnel. One of the digging machines was dismantled and removed from the tunnel, while the other one was turned so that it dug straight down from the tunnel. They just allowed the machine to bury itself and they built the tunnel over its final resting place.
natural: the Balkan range of mountains by public: Hain-Voaz tunnel thr. Balkan
The same, tunnel.
I think it is the wind tunnel.... hope it correct
It may take up to a few months to produce sperm again.