Imagine you were able to dig right through the earth. Would you come out the otherside feet first?
465852
Well you would only be able to dig a certain distance, then you would have to drill through IRON and ROCK. THEN you would have to deal with the little warm place called the MOLTEN CORE OF THE EARTH. So no even IMAGINATION wont do it. Put down the bong.
902460
Today has been full of very interesting questions.... this one no exception.\n\nIf the shoe were on the other foot, would you heed the advise not to go?
882616
Right into the ground
630342
Let's imagine that there's not lava inside, then as you ascend, you would slowly slowdown, at the center of the planet you wopuld experience zero-gravity, then if you push yourself towards the south pole, you would have to climb out --- you would not be falling, but climbing now.\n\nSo you would come out head-first.\n\nBut it is technically impossible, because of the heat and the pressure at great dephs.
520200
assumeing that one leg wasnt longer than the other, and that you couldnt fly and just walk straight out into space, you WOULDNT end up back where you started if walking in a straight line, because the earth isnt perfectly round...  you would have to walk east-west on the equator only
902400
You could do it the risky way, by sailing to the edge and hoping the current pulling water off the edge doesn't get you, too.  I don't recommend this.  The young men in my village (I live on an island close to the edge of the world) used to do this on dares, until we lost three young husbands and twelve manlings on an ill-fated drunken bet.  There was such a shortage of men we had to dress some of the maids in armour and set them to the oars during our next raid, just to have enough people!\n\n(Some people are so ignorant -- I'm still chortling.  Next I bet your friend Eric Halfwit will tell you that thunder is created by something soft like clouds rather than by Thor's mighty hammer!  Or that the sun is made of flaming air, rather than the shining Goddess Sol, fleeing across the sky from the wolf Skoll.)\n\nThe safer way to prove the earth is not round is by digging a hole deep enough that you come to the bottom of the earth, then you can stick your heads through and show him how the earth rests on the back of four giant elephants.  The bottom of the earth has no hills or mountains, so it's easier to see its flatness, too.\n\nPlus, how could it be a pig's bladder?  Wouldn't it pop and fly out of its place in the center of the universe the first time somebody dug a well and punctured its surface?  Hasn't Eric Halfwit thought of this yet?\n\nThis all shows that too much thinking is dangerous.  We should be making babies and pillaging villages -- ideas like that may anger the gods and ruin next year's crops. . . in the villages we raid.
550167
No, because if this pit when through the entire earth it would end up on the other side of the earth.
71077
Despite our ability to adapt to environmental conditions, there must certainly come a point where the surrounding pressure would overwhelm the solid portion of our structure--crush bones, break cellular walls, that sort of thing.  Deep sea divers can't go to the bottom of the deepest trenches.  I don't know whether they are crushed first, or some other gruesome death takes them first, but eventually I imagine whatever is left of them would be crushed.
1059765
Hmmm, probably, but I am an adventurous type that way.  The bigger questions for me would be how would I get to the poles and why am I going?
21030
Assuming you have a tunnel that goes through the earth, take aside the fact you would survive the temperatures and such at the center, assuming there's no resistance (vacumn like environment), you would fall into the hole... accelerate to terminal velocity...pass the center, and slowly decelerating, until you reach back a speed of 0, where you will be at the other end of the hole, whereapart the whole process would start all over again unless you grasp the edge :)\n\nConsidering that the fact there's air, you'll encounter resistence, meaning you will accelerate to the center, start slowing down, but fall short of reaching the other end, then you will fall to the center again, fall even shorter of your original jumping position, and you'll oscillate back and forth until you indeed get stuck in the center of the earth.
1069059
Ok well lets assume that we are not taking pressure or temperature into account, nor friction due to to air speed etc. If you jumped in the hole you would fall, and continue falling at greater and greater speed. Now as you approach the center of the earth the force of gravity would decrease  but  momentum would keep you going right thru the center and  towards the other side.\nNow gravity would start to increase again as you get farther from the center, but it would tend to start slowing you down. until it caused you to stop, right about the other side of the hole in the earth. Think of a bungee jumper, same thing. Now if you were not able to hold on to something you would start falling back down the hole and it would repeat.\n\nOf course this is a VERY simplified view of what would happen. In reality  you have things like the rotation of the earth th consider, which would cause you not to fall straight down the hole, but into the side wall of the hole. But it is a good thought experiment to help understand gravity.
462383
up and down are directions from a gravitional center.  So, one would be digging down from anywhere on the earth's surface until he got to the earth's gravitational center...then he'd be digging up.
264877
you would burn up before you got to the other side
1047844
nice question  theoretically you would be pulled in every outward direction, which would be interesting.
1096262
rock, and the depth will be different wherever you decide to dig. there are even deserts that don't have any sand at all, just exposed rock and "normal" earth everywhere.
562147
That presumes the earth is a perfect sphere, and that you are drilling directly toward the center of the earth.  In reality, the earth is slightly fatter in the middle than at the poles, plus there's little or no chance of drilling directly toward the center of the earth, much less making it out to the other side.  Man-made drill holes have never even pentrated the earth's crust, which goes 10-40 miles deep in most places.  For comparison, the diameter of the earth is about 8000 miles, between 200 and 800 times the depth of the crust.\n\nTo drill such a hole would be an engineering impossibility, for a host of reasons, notably the heat contained in the earth's mantle and core, but also simple issues of scale.  The longest man-made tunnels, such as the "Chunnel", which spans the English Channel between France and England, and the Sei-kan, which spans the strait between the Japanese mainland (Honshu) and the island of Hokkaido, stretch less than 35 miles and cost hundreds of millions of dollars per mile.  At that rate of cost, a tunnel through the earth would cost on the order of 2 trillion dollars.  And that's not even taking into account for the cost of keeping the tunnel cool enough to operate within it, and building a structure capable of withstanding the flow of magma, so as to prevent the tunnel from collapsing behind you as you tunnel.\n\nIn short, I wouldn't go so far as to call it impossible...just so infeasible as to ensure that it will never, ever happen.
1051472
Ok, say the earth was all solid and there was a tunnel from one side to the other.  \n\nYou would keep accelerating as you moved toward the center of the earth, until you reached a very high speed.  As you passed through your speed would be at a maximum.  Then you would begin to decelerate as you went toward the other side.  Neglecting friction and air resistance, you would have just enough momentum to make it up to the surface on the other side, but you would have to grab on or else you would fall back into the hole and go the other way.  You'd continue oscillating back and forth forever if you neglect friction.  \n\nBut of course in real life you would slow down a little bit each time.  Your motion would be like a kid on a swing set, or a pendulum, a gradually decreasing swinging motion until finally you come to rest in the center.