I would have to say that it is most likely gunpowder as explosives would make getting through the wall far more possible but i can't say for sure.
A power drill
door surely
the cabinet bed (a bed that folds up into the wall)
Great Wall of China
Meaning: Damp Proof course Bricklayers are responsible for building-in damp-proof courses and cavity trays to prevent the penetration of rainwater and ground moisture. If the installation of a damp-proof course (DPC) is not done with skill, care and attention, dampness may cause: • Timber to rot. • Plaster to deteriorate. • The effectiveness of any thermal insulation to be reduced. Repairing any damage caused by dampness can prove to be very expensive and distressing to the occupants of the building. The provision of a DPC in a building, or a free standing wall, is intended to provide a barrier to the passage of water from: • The exterior to the interior of the building. • The ground to the structure. • One part of the structure to another. This passage of water may be horizontal, upwards or downwards and, if measures to counteract it are not taken with care, dampness may result and the effectiveness of thermal insulation may be reduced.
no
mongorians
Building the Great Wall of China. The discovery/invention of fireworks. The invention of spaghetti.
1. Paper money 2. Gunpowder 3. The Great Wall
Beach erosion by wave action can be reduced by building a beach protection wall. But build the wall in such a way that the water can still get through but damaging waves cannot harm the beach. Or if that is complete nonsense then research into ducks, not the animal ducks but an invention that harnessed the power of the waves and converted it into electricity. These ducks would not only harness electricity but would also leave the water behind as smooth as glass. The invention was halted because of lack of funds but there are many similar inventions that would solve your problem.
B,during invention of
A Window
A power drill
No the biggest wall is The Great Wall Of China I think
The Great Wall is in China.
the great wall of china was supposed to serve as a fortress not exactly just a wall
what is so great about the location of the great wall of china