If the earth was solid, could you dig right through it.?
823462
the earth is not solid, it contains liquid metals. So the essential problem is, you'll burn to death.\n\nBut let's assume you won't burn to death and the earth is solid, and your tunnel will not collapse because of the pressure. \n\nHalfway, you'll notice that gravity will change direction, since your attracted towards the center of the earth. It's then easier to interchange the position of your head and feat: you'll start climbing upwards. On the top you'll climb out of your tunnel. You should take care though, not falling down because then you'll fall down, through the center of the earth, upwards until you reach the height you fell from, and then you'll start falling down again. \n\nSo in conclusion, create a solid earth, don't burn, don't fall, don't let your tunnel collapse and climb out at the other end. good luck.
184255
The best thing would be a copper wire attached to a metal bar into the earth. Other choice would be the gorund wire in an electrical outlet (careful not to hit live wires) or to a rubber mat on a concrete floor
633927
If the Tooth Fairy waved her magic wand and ...\nAre you serious?\nDividing the Earth in two parts without damaging the surface would require ... magic.\n(Of course Arthur C. Clarke did once point out that any sufficiently advanced technology would appear as magic but we're talking an asteroid strike, not super-technology.)\nIf a body large enough to blast the Earth apart struck, there would be nothing presently on the surface that would survive in recognisable form.\nI suppose it's imaginable that two bodies mutually orbiting a common center of gravity, might accrete from the resulting debris. The oceans would have been vaporised. Some water would recondense and wind up on our hypothetical twin Mini-Earths but I imagine on the whole they'd be pretty dry. Bacteria living in deep crustal rocks blown clear of the remains of the planet would probably  survive and as this debris was gravitationally 'swept up' over time by the newly formed pair of mini-Earths life would be re-seeded and we'd be back at 'Square One'.
526682
I wonder if this is the same as taking core samples of the earth.  They are able to find out about past earth conditions from each layer of the core.
346050
You'll never get to the other side, first because if it was possible, you'd burn in the central core. But more importantly, the fact that you fall into the hole is because you're attracted by gravitation force, so you're attracted to the center of the Earth. The closer to the core, the stronger the attraction force. Therefore, if you reached to center of the Earth, you'd stay there and would not be able to continue your jouney to the other side, unless you had a power device that helped you get away from this force
4253
yes - assuming there are no nearby magnetic fields that are stronger than the earth's, or no strongly magnetic materials (such as metal) very close to the compass
251965
The bullet would disintegrate in the Earth's atmosphere.\nExplode?  From a bullet?  Uh, no.
791134
Well, sure, if your pocket was resistant to all the destructive power and unimaginable gravitational force due to an inconceivably huge amount of mass and energy in a single point.\n\nOtherwise, you'd be ripped apart and smeared into nothing in like a femtosecond.
246486
I'm sure physicists around the world ponder these questions on a daily basis.\nFirstly,astronomers believe that there is a super-massive balck hole at the center of our galaxy, the Milky wave. Through spectrometric measurements, they have shown that the large amounts of gamma rays emitting from it are due to the huge chunks of nearby stars and matter that it sucks in each second. It is believed that this matter is absorbed by the black hole and compressed into nothingness. However, some believe that some of this matter (including people) could be transported through some sort of tunnel into another part of space\n\n2. No one knows for sure if wormholes exist. But if they do, it could provide a way to travel faster than the speed of light like in star trek or other shows, the so called "hyperspace".\n\n3. Yes, if you dug through the earth, you'd emerge into space, with nothing under your feet. If you were to travel in such a "hollowed-out" tunnel, as you approach the center of the earth, the gravity would gradually decrease until it would be zero at the exact center. If you drop a ball into this tunnel, it would oscillate forever, assuming no air is present, like a spring with simple harmonic motion since the gravity is a function of depth.
1119562
When you dig deep into the earth/mud, you will hit ROCK - that is Bedrock.
589261
So if you dug a tunnel through the Earth, ignoring the molten lava, and if you fell through the tunnel you would indeed get stuck in the center of Earth's gravity well.
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.
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.
45840
Could be. There is so far no way to know the temperature of the earth's core. We know from drilling that the temperature increases about 1 degree Fahrenheit for every 60 feet in depth. Of course, there is considerable variation in this from region to region, since it depends on the thickness of the crust, volcanic activity, ocean depth, etc. Anyway if you extrapolate that towards the core, it would give you an answer much greater than 12,000 degrees F. Most sources estimate about 7500 Kelvin or 13,040 F. We can attempt to model the core to calculate the temperature but since we don't know for sure what it is made of, and cannot reproduce the extreme pressure, it is hard to really know the temperature.
804491
If there was a hole right through the center of the earth?\n\nAlright.  In order to understand the answer, you have to understand the difference between potential energy and kinetic energy.  Potential energy is stored up energy.  (Like a rubber band stretched and ready to snap.)  Kinetic energy is moving energy.  (Like the rubber band in the process of snapping.  \n\nThe moment that a person steps over the hole through the earth., that person has complete potential energy.  The earth's gravitation is pulling on them, but they are not yet falling.  As they fall, that potential energy is converting to kinetic energy.  They fall faster and faster.  Once they reach the center of the earth, they have no potential energy, only kinetic energy.  \n\nThis kinetic energy keeps them moving down the hole towards the other side of the earth.  As they are moving away from the earth's gravitational pull, they slow down.  The kinetic energy is converting back to potential.  \n\nOnce they reach the surface, they once again have full potential energy and zero kinetic.  \n\nSo, they yo-yo back and forth between the two mouths of the tunnel.\n\nWhat ends up happening depends on if you are taking air resistance into concideration.  \n\nIn a complete vacuum, the person would yo-yo between the two openings of the tunnel forever.   The person's potential and kinetic energies would have an inverse relationship.  Back and forth.\n\nIf you are taking air resistance into account, then some of the energy is lost from friction between the person falling and the air.  (It's lost through heat energy.)  During each yo-yo, the person's fall would be less and less.  Eventually, all of the energy in the person would be lost through the heat energy and the person would be stuck in the center of the earth, suspended there for all time.\n\nKinda cool, huh?
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)
94632
Assuming (1) the Earth isn't torn apart by the impact of such a meteor and (2) the Earth wasn't molten rock in the center, you could safely expect this ball to go through the hole toward the center of the Earth, pass through the center and start moving towards the opposite end of the Earth.\n\nBecause the ball won't have gained enough kinetic energy to then break away from Earth's gravity (in the same way a pendulum always comes back and finally, to rest), the ball will then slow to a stop and return back towards the center.  Just as a pendulum will, the ball will oscillate back and forth for a while until its potential energy evens out to zero and it stops, motionless, at the exact center of the Earth.\n\nGive it a try and let us know how it all works out, okay?