If the pressure drops, the soil pressure increases and this leads to subsidence at the ground level. Since exploitation of the Slochteren (Netherlands) gas field started in the late 1960s the ground level over a 250 kmÂ² area has dropped by a current maximum of 30 cm.
Confidence votes 18.5K. There are quite a few tools that the Astronauts use, though for construction and maintenance in space, the Pistol Grip Tool (PGT) is the primary tool of choice. Its predecessor was the Power Ratchet Tool (PRT), originally developed and created for servicing the Hubble Space Telescope.
Mars One Navigation. The Rover for the Mars One mission is not a scientific Rover. It is a capable and powerful tool, with a robotic hand to carry out a wide variety of tasks. The Rover is accompanied by a trailer, which is used to transport landing modules and for power generation. Autonomous travel to locate the most suitable location for settlement.