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The Dead Sea is the lowest place on Earth, but is it the closest place on the surface to the planet's center? If not, what is?
Question
#64307. Asked by Arpeggionist.
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mementoflash
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There are some caves and mines that I am sure are closer to our planet's core.
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mementoflash
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But they are not on the planet's surface...I'll keep searching.
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Brainyblonde
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The lowest point on land on earth is at the Dead Sea, on the border of Jordan and Israel. The Dead Sea lies at 1,312 feet (400 meters) below sea level.
The lowest point in the sea on earth is the Pacific Ocean's Marianas Trench. It's near Guam and is 35,840 feet (10,924 m) deep.
http://geography.about.com/library/faq/blqzlowestpoint.htm
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xfacilitatorx
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The Marianis Trench IS on the Earths surface. It just happens to be covered by 7 miles of water.
In another train of thought:
Radius:
Equatorial 6,378.135 km
Polar 6,356.750 km
Mean 6,372.795 km
There is a 22 Kilometer difference between the distance from the Earths surface to the core at the Poles compared to the Equator. One would have to calculate the position of the dead sea along the elipse of the Earths surface to determine the radius and compare it to the radius at the poles. I believe that a point at the South Pole (south because it is an actual land mass)is considerably closer to the core than the Dead Sea. The further one travels from the South Pole, the greater the radial distance from the core and the Dead Sea is not 22+ Kilometers deep.
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Brainyblonde
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It must be the little piece of dirt or sand you stand on before stepping into the water of the Dead Sea.
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xfacilitatorx
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Deepest point in the sea: Challenger Deep, Pacific, 11,032 m.
Equatorial diameter: 12,756 km
Polar diameter: 12,714 km
Lowest point on land: Dead sea shore, Israel, 395m below sea level.
Tallest mountain: Mauna Kea, Hawaii, 10,203 m from submarine base to peak.
Polar radius: b
The Earth's polar radius, or semi-minor axis, is the distance from its center to the North and South Poles, and equals 6,356.750 km (≈3,949.901 mi; ≈3,432.370 nmi).
Equatorial radius: a
The Earth's equatorial radius, or semi-major axis, is the distance from its centre to the equator and equals
6,378.135 km (≈3,963.189 mi; ≈3,443.917 nmi).
http://en.wikipedia.org/wiki/Earth_radius
http://en.wikipedia.org/wiki/Earth_radius
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Arpeggionist
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So the closest spot to the core would actually be the North Pole, which is pretty much at sea level, whereas the South Pole is at an altitude of some 200 feet above sea level.
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xfacilitatorx
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I would have to agree and disagree with you Arpe because I was making a reference to land since it is actually attached to the Earths surface. The ice is not part of the Earths surface as is not water.
Regardless of ice/land/air/muck..... somewhere at one of the poles is certainly the closest. Unless of course you consider a drilling rig that has bored miles into the earth being attached to a machine anchored to the bottom of the ocean. Which by attachment is the closest.
The POLES!!!!!!!!!!
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