If you could dig straight through the earth, when would you start digging up?
537690
Technically you'd start digging up when you reached the centre of the core and entered the 'the half' whether you'd immediatly feel the shift is questionable... I think as you got right close to the centre of the earth your sense of up and down would weaken, so it wouldn't be until you'd got some way away that you'd feel like you were going up...and yes once you'd got up you would fall back down due to gravity. Think of the gravity as those like the force on those playground things you can spin in circle and the centrifugual force can be used to mkde you spin faster or slower as you hold yourself close in or furtehr out...the further out you are the more you feel the froce...the closer in the less obvious it is.\n\nEdit: 8928 the core is solid... your talking about the mantle in which even rocks are molten.
794485
You are upside down... according to someone in Australia.\n\nThe Earth is a sphere and is constantly attracting you via gravity.  So no matter where you go it will always be pulling you towards the center.  As you travel around the globe "down" will always be toward the center of the Earth.
435954
i'm assuming that you are ralking bout a hole being drilled right thru the earth and somebody falling into it...............you would accelerate and move towards the center and reach the opposite end of earth, at which point your velocity will reduce to zero and you will again move back to the cetre of earth and then onto the starting place.............in simple words you would execute Simple Harmonic Motion(SHM)
370280
9 miles, and you get to see all of the tormented souls!\n\nGeologists working somewhere in remote Siberia had drilled a hole some 14.4 kilometers deep (about 9 miles) when the drill bit suddenly began to rotate wildly. A Mr. Azzacov (identified as the project's manager) was quoted as saying they decided that the center of the earth was hollow.\n\nSupposedly, the geologists measured temperatures of over 2,000 degrees in the deep hole. They lowered super sensitive microphones to the bottom of the well, and to their astonishment they heard the sounds of thousands, perhaps millions, of suffering souls screaming.
498973
I would take it over the 30 year period. You get more and you know you'll be set for at least 30 years...so you don't go crazy and spend everything within the first year. \n\nFirst, I would get a layer, financial advisor, a very nice house and a car. Then give some to my parents and grandparents, charitable causes and invest the rest. \n\nThen I would travel to the United Kingdom, Europe, Austalia and make my own archaeology excavation in Egypt. Well, that's what I would do.
173712
well, the deepest trench on the earth is 11,034 meters (about 30K feet).. I imagine the abyss being /infinitely/ deep.
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.
343653
post your quest in earth sciences
699853
At about the center of the earth you would probably burst into flames do to the magma.if you survived that you would be upside down (relative to the ground)
509966
Ummm that's not a real question.\n\nBut, if that happened, you'd end up with someone standing on the earth who observed that small particle moving in a direction opposite the earth's rotation at a speed that could be calculated by:\n\n(radius of the earth)*6.28*(1/30-1/24)
981056
You need a Geologist!
415205
Settle down at Moon. or Dig 100 meters down the earth construct a room there. Go to underground well before the nuclear attack. You are safe.
587307
Yes, you would be upside down.   You'd get lighter and lighter as you approached the centre of the Earth.   As you continued towards the opposite side, your weight would start increasing,you'd start to feel upside-down and you'd reach the other side feet-first.   If I tried this, I'd turn myself through 180 degrees when I reached the centre.   It would be a whole lot easier.
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.
181131
The earth as it was 100 million years ago.\n\nSimple really!
891587
I would love to get the chance to ride into space!  I think it would make me appreciate our planet Earth more.  There's nothing up there except cold, dark rock.\n\nBut I think it would be nice to experience 0 G.  Free floating!!!!!
1120369
I'd want to witness the arrival of the first human life on earth. With all the theories of evolution, creation and so on, it would be nice know, once and for all, just how the hell we got here.