Impossible to say since it has never been achieved. The Earth's mantle is 1,800 miles thick and lies below the Earth's crust which averages around 20 to 30 miles thick. However, the deepest hole thus far drilled into the Earth, the Sakhalin-I Odoptu OP-11 Well, is only 52,575 feet deep, which is slightly less than 10 miles. So there's still some way to go to reach the mantle, never mind dig past it.
Answer That depends on how fast you dig or how strong you are, but on average it would take several days. Answer No one knows. Humans have so far been unable to reach the bottom of Earth's crust, the thickness of which ranges from roughly 4 miles to 60 miles.
20 weeks
20weeks
24 hours
1,000
An example of a aquitard could be Clay. Nothing can get through it. If something were to get through it, it would take a long time.
Most convection currents exist in the mantle, the layer below the Earth's crust. As the semi-molten rock heats up, it rises closer to the surface, and it sinks as it cools. This is how plate tectonics works, as the crust's plates move on these currents.
No propagation delay has ever been successfully detected or measured, and the process is now believed to be virtually instantaneous, at least to within a Planck interval.
20 weeks
Yes, geothermal energy will continue to exist as long as there is movement in the earths mantle and core. Although in theory the earth will stop rotating at some point, it will take many million years and we'll probably be extinct by then
24 hours
365 1/4 days
it takes the heat of a meteorite coming through the earths atmosphere
it took so long because, the earths mantel is solid
it took so long because, the earths mantel is solid
1 year
well, to get out of earths atmosphere into the edge of space is about 5-8 minutes
A couple billion years, but only if the Mighty Parrot is tired.
8 minutes or 500 seconds(approx.)
A snail's organs are attached to the shell through the mantle. If you attempt to pull the snail out, it will harm it.