Provocatively, he proposes that the earthquake that brought the face of the mountain down
on top of the chamber may have occurred in the 11th century B.C., prompting the Egyptians to retreat from Nubia.
Microscopic holes at
the top of the chamber release excess pressure, preventing a loss of robot limbs.
As the bubbles rise, they pressurize
the top of the chamber until it explodes.
Lighter components, including hydrogen and carbon monoxide in a mixture similar to Britain's old town gas, rise to
the top of the chamber, from where they can be vented for use as fuel.
At high tide, the piston is at
the top of the chamber.
A tunnel runs 20 metres below ground and opens into
the top of the chamber, 30 metres above the floor.
Most cryo sessions only last a few minutes, often with the patient's head poking out over
the top of the chamber.
If you can get
the top of the chamber lower than the sump, you'll be able to set up a siphon.
Now go and Clawshot to
the top of this chamber and then open the Big Chest to get the Big Key.