Does every point in the world have an opposite point?

Question

i.e a point B that is further away from point A than any other point on earth.

It should be point reached if one dug directly through the centre of the earth.

Am I right?

Answer 1

What you are talking about is called a DIAMETER, which is defined as "going through the center".

For any point on the earth, A, there is another point ion the earth, B, that is on "the other side of the eath" and the line passes through the center of the earth.

For any point on the earth, you should be able to find that opposite point by adding and subtracting longitudes and latitudes.

Answer 2

Yeah, I would have thought so, of course not every point has an opposite point that is accessible but still.

Answer 3

The term for it is antipodes, or the exact opposite side of the earth.   Antipodes are exactly 20,000 kilometers apart (this is how the meter was defined). In miles that is just over 12K miles.

Most of the time the antipodes of a major city is in the water, or in some obscure place on land. The antipodes of North America is in the southern Indian Ocean.The antipodes of Europe would be in southern Pacific Ocean.

Here is a list of two cities that are within 100 km of their anitpodes, with at least one major city (pop ≥ 1 million):

    * Xi'an (China) — Santiago,

    * Auckland (New Zealand) — Seville (Spain)

    * Tianjin (China) — Bahía Blanca (Argentina)

    * Perth (Western Australia) — Hamilton (Bermuda)

    * Shanghai (China)— Salto (Uruguay)

    * Taipei (Taiwan) — Asunción (Paraguay)