yes they were they played a very important role in destroying German trenches. the English had an elite group of tunnelers that worked in total silence. they dug tunnels under German lines then planted tnt and blow up the Germans trenches
The advantages where that tunneling provided more protection, it provided a way to get around. Disadvantages were that a person couldn't always see what was going on, and people got trapped.
they are vertical tunnels, angle tunnels, and horizontal tunnels. THE END
Pressure tunnels are tunnels used to divert water from a reservoir, usually to a hydroeletric power house. They take their name due to the fact that, instead of most commons tunnels in wich the main load is geostatic (pointing inwards the tunnel), pressure tunnels are submited to high water pressures pointing outwards the tunnel.
A rock drill is used in various surface drilling and mining operations and can usually be found on construction sites or quarries. Specific uses of a rock drill include digging wells, penetrating rock, and creating tunnels.
The term "lock and load" was used in the military during World War Two. It is a command to prepare a weapon for battle, and was popularized by John Wayne.
laboratory equipment
an elaborate system of tunnels
an elaborate system of tunnels
True
they are vertical tunnels, angle tunnels, and horizontal tunnels. THE END
During World War Two, the first mechanized warfare was used in fighting. This was in the form of tanks and airplanes.
the only one I can think of right now is the tank
The "Tube"is a British slang word for the London, England subway (underground) tunnels. These were used as temporary bomb shelters during German bombing or rocket attacks 1940-1945.
It depends, some tunnels are several miles long.
probably the flamethrower because it was never used before then and has never really been used again The Flamethrower was used quite a bit during the Vietnam war because of the Viet Cong and NVA tunnels, and fortifications in the jungles.
Disadvantages of High Tunnels One of the primary disadvantages of the more permanent high tunnels is the fact that they are not easily moved. Some high tunnels are engineered to be (and advertised as) easily movable. However, they are typically not very easy to move, and many high tunnels are never moved Another disadvantage to high tunnel production is the lack of exhaust fans for venting during hot weather. In most regions where tunnels are used, tunnels will overheat at some point during the crop production season unless manually vented, or unless an automated ventilation system is used to roll up the sides as the temperature inside the tunnel rises. Another disadvantage of high tunnels is that they can be destroyed by high winds, snow, and ice, as they typically do not have the strength of greenhouse structures. Tunnels should be designed to withstand or avoid these stresses.
Almost any where in the world. Yankee is a slang term used for usa americans. During USA Civil war, the term was used for soldiers fighting on the side of Lincoln.
During World War I, trench-warfare was used mainly for defensive purposes by all of the combatant nations. Highly sophisticated and complex systems of earthen tunnels, including communication lines running perpendicular to the front line, were used to thwart the offensive actions of the enemy during all phases of the conflict -- and quite effectively, too.