How deep into the earth has anyone ever dug?
475601
The Kola Superdeep Borehole, Continuously Dug By The Soviet Union/Russia Starting In 1970 and Finished In 1994 Is Over 12.262 Kilometers (About Seven Miles) Deep...  Awesome.\n\nOther Deep Man-Made Holes Are Found Below:
168549
I haven't, but search "climb everest" in yahoo.  And YES it can & has been done.
54479
The Philippine Trench is a submarine trench to the east of the Philippine islands. It stretches with a length of approximately 1,320 km and a width of round about 30 km from the northeast top of Luzon up to the Indonesian island of Malacca Halmahera. Its deepest point, the Galathea Depth, has a depth of 10,540 meters.\n\nUntil 1970, the Philippine Trench was regarded as the deepest point of the earth. Since then, deeper trenches have been discovered, including the Mariana Trench (11,034 meters), the Tonga Trench (10,882 meters) and the Kuril Trench (10,542 meters).
477356
Not all are buried 6ft down.  6ft was used because thats about the deepest a man could dig by hand, you can only throw dirt so high.\n\nMost graves in commercially run cemeteries are anywhere from 5 to 8 ft deep deeping upon the ground and the type of burial.
1062942
there is no single person that biscovered earth. some theroies are the bacteria in space  rode on comets that landed on earth, in this case they discovered earth.
27693
The deepest point is 560 feet (170 meters).  By the way, you're in WAY the wrong catagory.
278999
Pacific Ocean - The deepest known point on Earth is at the bottom of the Mariana Trench, a depression in the floor of the western Pacific Ocean, just east of the Mariana Islands. \n\nThe Mariana Trench is 1,554 miles long and averages 44 miles wide. Within it, about 210 miles southwest of Guam, lies the deepest known point on Earth. Named the “Challenger Deep” for the British survey ship Challenger II that located it in 1951, this underwater gorge plunges to a depth of nearly 7 miles! It is deeper than Mt. Everest is tall.
713812
Challenger Deep of the Mariana Trench  (or Marianas Trench) is the deepest part of the earth's oceans, and the deepest location of the earth itself. The bottom of the trench (Challenger Deep) is farther below sea level than Mount Everest is above it. The trench has a maximum depth of 10,911 meters (35,798 ft) below sea level. Some says it is 11,033 meters (36,201 feet) deep. It is located in the floor of the western North Pacific Ocean, to the east and south of the Mariana Islands  near Guam and Japan  under the Philippine Plate.♥
1036795
There is an extremely high amount of pressure and weight underground. Things get compacted because of it. There are some parts of the surface of the Earth that we still can't explore because we haven't got the technology to withstand the pressure. (Mariana Trench)
480244
ALL practical stuff aside:\n\nI hypothesize it would be headfirst, because gravity would still be sucking you towards the center of the earth, not the surface towards which you were digging. Halfway through your digging I guess it would shift from under your feet to over your head. \n\nAlthough, if you dig yourself into the pit of magma at the core of the earth you could always come up in a volcanic eruption, in which case, on the plus side you oculd be in hawaii or somewhere cool but all of your parts would look about the same so it wouldnt matter.
53712
"The Mariana Trench (or Marianas Trench) is the deepest known submarine trench, and the deepest location in the Earth's crust itself. It is located in the floor of the western North Pacific Ocean, to the east of the Mariana Islands at 11°21′N 142°12′E, which is near Guam. The trench is the boundary where two tectonic plates meet, a subduction zone where the Pacific Plate is being subducted under the Philippine Plate. The bottom of the trench is further below sea level than Mount Everest is above sea level.\n\nThe trench has a maximum depth of 10,911 m (35,798 feet) below sea level. Taking into account its latitude and the Earth's equatorial bulge, this puts it at 6,366.4 km from the centre of the Earth. The Arctic Ocean, on the other hand, is 4-4.5 km deep, which would put its floor at ~6,352.8 km from the Earth's centre, 13.6 km closer."
392079
At its deepest? About 11,000 meters deep. On average its about several thousand meters deep.
116129
Deep inside the ocean...B-)
286838
The Mariana Trench (or Marianas Trench) is the deepest known submarine trench, and the deepest location in the Earth's crust itself. It is located in the floor of the western North Pacific Ocean, to the east of the Mariana Islands at 11°21′N 142°12′E, which is near Guam. The trench is the boundary where two tectonic plates meet, a subduction zone where the Pacific Plate is being subducted under the Philippine Plate. The bottom of the trench is further below sea level than Mount Everest is above sea level.\n\nThe trench has a maximum depth of 10,911 m (35,798 feet) below sea level. Taking into account its latitude and the Earth's equatorial bulge, this puts it at 6,366.4 km from the centre of the Earth. The Arctic Ocean, on the other hand, is 4-4.5 km deep, which would put its floor at ~6,352.8 km from the Earth's centre, 13.6 km closer.\n\nIt was first surveyed in 1951 by the British navy vessel, Challenger II, which gave its name to the deepest part of the trench, the Challenger Deep. Using echo sounding, the Challenger II measured a depth of 5,960 fathoms (10,900 m) at 11°19′N 142°15′E. This sounding was repeatedly made using earphones to hear the return of the signal as the stylus passed across the graduated depth scale, whilst the timing of the speed of the echo-sounding machine, a necessary part of the process, was made with a hand held stopwatch. For these reasons it was considered prudent to subtract one scale division (of 20 fm) when officially reporting a new greatest depth of 5,940 fm (10,863 m).\n\nIn 1957, the Russian vessel Vityaz reported a depth of 11,034 m (36,201 ft), dubbed the Mariana Hollow; this measurement has never been replicated and is not considered accurate. In 1962 the M.V. Spencer F. Baird recorded a greatest depth of 10,915 m (35,810 ft). In 1984 the Japanese sent the Takuyo, a highly specialized survey vessel out to the Mariana Trench and collected data using a narrow, multi-beam echo sounder; they reported a maximum depth of 11,040.4 m1 (this is also reported as 10,920±10 m 2). The most accurate measurement on record was taken by another Japanese probe, Kaiko, on March 24, 1995: 10,911 m (35,798 ft) 3.\n\n \nJanuary 23, 1960: Just before the diveIn an unprecedented dive, the U.S. Navy bathyscaphe Trieste reached the bottom at 1:06 pm on January 23, 1960 with U.S. Navy Lt. Don Walsh and Jacques Piccard. Iron shot was used for ballast, with gasoline for buoyancy. The onboard systems indicated a depth of 37,800 ft (11,521 m), but this was later revised to 35,813 ft (10,916 m). At the bottom Walsh and Piccard were surprised to discover soles or flounder about one foot (30 cm) long, as well as shrimp. According to Piccard, "The bottom appeared light and clear, a waste of firm diatomaceous ooze".\n\nAt the bottom of the Mariana Trench, water exerts a pressure of 1086 bar (108.6 MPa or 15,751 psi), over 1000 times the standard atmospheric pressure at sea level.
1150478
It's widely believed in the scientific community that the earth has a liquid mantle (that's where magma/lava comes from) and a solid super-hot iron core.  Good luck digging through that.
294817
the deepest ocean so far known is the pacific ocean. the mariana trench is the deepest point in the ocean that is roughly 10,000 metres depth. isn't that amazing!
773769
I'm going to make a lot of money out of this.\n\nIn my back garden I have dug a hole 15 miles deep.\nEvery day I climb down the ladder (have you got any idea how many rungs there are on a 15 miles ladder? A flippin' lot, that's how many - ) and stand at the bottom of my hole.\n\nThen, everytime someone comes burrowing their way through - I charged them a toll fee.\n\nGood idea, eh?\n\nNo one has come through yet - but they will, and I'll be rich. Rich I tell you.\n\nIn the meantime - anybody want a big pile of earth?