antipodal points


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antipodal points

[an¦tip·əd·əl ′pȯins]
(mathematics)
The points at opposite ends of a diameter of a sphere.
References in periodicals archive ?
It will mean that, when he includes his previous challenges, Mark will have covered 20,000 miles and passed through two antipodal points on the globe - making it a run around the world.
Another way of assessing the antipodal location of the Earth major landforms severity is the rectilinear correlation r coefficient calculation between absolute heights (depths) of the earth surface within antipodal points.
09 as a whole; the same connection value calculated only for the cases when at least one antipodal point belongs to the continental crust is equal to -0.
d] touches the boundary of Z in at least two antipodal points rw and -rw, w [member of] [S.
Plane elliptic geometry is closely related to spherical geometry, but it differs in that antipodal points on the sphere are identified.
There are 18 other strict rules covering antipodal points, East/West co-ordinates, independent adjudication, log books, witnesses, pre-travel engineering checks, and driving times.
On the other hand, Borsuk's theorem only requires the mapping f to be continuous on the ball and to fulfill a non-colinearity condition for the function values at all pairs of antipodal points on the boundary of the ball.
The first strict circumnavigation, covering two antipodal points, was made by Lowell Smith and Leslie Arnold in two US Army Douglas DWC seaplanes in 57 legs beginning and ending in Chicago in 1924
The Guinness book of world record rules require competitors to travel at least 18,000 miles by land and 8,000 by sea or air, via two antipodal points.
To find antipodal points, note that any two of the circles shown intersect in a pair of antipodal points.
Mr Springbett, aged 61, and Brother Michael, 59 - a member of the Order of the Good Shepherd - chose Madrid Airport and Ti Tree Point on Highway 52 in the south-east corner of New Zealand's northern island as their antipodal points.