Because of the broken drill, a second shaft was started this morning as a parallel escape route, 70 feet beyond the first.
But this shaft spins quite slowly, so a gearbox is used to get the drive shaft to turn a second shaft at a much higher speed, suitable for spinning a generator to produce electricity.
A second shaft - 556m deep - was dug between 1967 and 1971.
He stopped his exploration after the fifth grave was explored, believing that he had finished excavating the Grave Circle, however a year later Panagiotis Stamatakis found a sixth shaft grave.
Sitting on a square base, the first shaft is octagonal, and four sides have a decorative keel arch, separated from the adjacent sides with two columns.
But in addition to kinetic camera shots of static subjects, like ancient Greek columns and friezes from the Acropolis, "The Greeks" dabbles in computer animation, recreating Greek furniture, writing and eating implements and most ambitiously the inside of an intact Parthenon, from the first shaft of light from an open door to a walk through the columns as they might have been.
The first shaft for a deep colliery was sunk in 1840.
She also suffered a perioperative pertrochanteric fracture while being operated for her first shaft fracture, and had refractures twice at the end of an osteosynthesis plate.
Before Leviev's epiphany, the world's diamond market was strictly regulated by De Beers, a company founded in the 19th century to mine its first shaft of diamond-bearing kimberlite.
In 1880, the engineers had sunk their first shaft, at Abbot's Cliff, the 2nd shaft was sunk at Shakespeare Cliff & Dover.
He was sitting in his local inn one evening when the first shaft of sunlight broke through: the whole village immediately danced in celebration.
