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A weatherhead on a residence in Mount Vernon, Washington, US. A weatherhead, also called a weathercap, service head, service entrance cap, or gooseneck (slang) is a weatherproof service drop entry point where overhead power or telephone wires enter a building, or where wires transition between overhead and underground cables.
Tunnel Construction. Tunnels are dug in types of materials varying from soft clay to hard rock. The method of tunnel construction depends on such factors as the ground conditions, the ground water conditions, the length and diameter of the tunnel drive, the depth of the tunnel, the logistics of supporting the tunnel excavation, the final use and shape of the tunnel and appropriate risk management.
An adit is an underground level or tunnel to the surface for access or drainage purposes. [1] Afterdamp. Afterdamp is a mixture of carbon monoxide and chokedamp which replaces atmospheric air after an explosion. [1] Agent. The agent was the senior colliery manager: the term "viewer", "captain" or "steward" also appeared in older regional ...
A manhole cover was accidentally launched from its shaft during an underground nuclear test in 1957. During the Operation Plumbbob nuclear tests, a 900-kilogram (1,984 lb) steel plate cap was blasted off the test shaft at an unknown speed and appeared as a blur on a single frame of film of the test. It was never recovered, but it likely burned ...
The powerful Iranian-backed Lebanese armed group Hezbollah published footage on Friday that appeared to show its fighters driving trucks with rocket launchers through a maze of tunnels to an ...
PMG manholes in a city street, Perth, Western Australia Manhole being used to access sewer Installation of a fiber-optic manhole in Brooklyn, New York An uncovered manhole in Beirut, Lebanon. A manhole (utility hole, maintenance hole, [1] or sewer hole) is an opening to a confined space such as a shaft, utility vault, or large vessel.
“If you’re seeing snakes, it’s likely because your property offers a perfect combination of food, shelter, and access points,” Carpenter says. “The best way to keep snakes away is ...
An American Airlines flight out of New York was diverted to Rome on Sunday over a "possible security issue," the airline said in a statement. American Airlines flight 292, which departed from John ...