如何一个起点的北极南极以北一个端点是大半个地球吗?- 江南体育网页版- - - - -地球科学堆江南电子竞技平台栈交换 最近30从www.hoelymoley.com 2023 - 07 - 30 - t07:24:10z //www.hoelymoley.com/feeds/question/21222 https://creativecommons.org/licenses/by-sa/4.0/rdf //www.hoelymoley.com/q/21222 6 如何一个起点的北极南极以北一个端点是大半个地球吗? b .粘土Shannon-B。乌鸦乌鸦 //www.hoelymoley.com/users/3166 2021 - 05 - 06 - t09:00:05z 2021 - 05 - 10 - t11:21:03z < p > <强>注意< /强>:我第一次发布这个问题到GIS StackOverflow站点,但有人说我的问题会更适合地理或地球科学网站。江南体育网页版GIS似乎完美的地方对我的问题的,但如果是正确的我张贴在这里。< / p > < p >我已经问了一个问题(回答)< a href = " https://gis.stackexchange.com/questions/395569/calculating-coordinates-for-halfway-around-world-from-given-location " > < / >在这里寻找位置大半个地球从一个给定的位置,在加州蒙特利提供的例子。< / p > < p >东/西位置(同一纬度)是Birjand,伊朗。这对我来说是有意义的。< / p > < p >北/南的位置是在一个位置的南极以北,即使它是我提出了一个计算,验证了这是正确的,对我来说没有意义。

The reason why my brain is having a meltdown is because it seems plain to me that the north pole to the south pole would be halfway around the world, whereas Monterey is well south of the north pole, and the location "agreed upon" as the halfway around the world point from there (from a north/south, same longitude standpoint) is in the South Pacific between New Zealand and the southern tip of South America, which is north of the South pole.

It seems to me that the halfway point should be as far "down" from the south pole as Monterey is from the north pole.

Am I wrong? If so, what is faulty with my logic?

If I'm right, what is the halfway point, then, from Monterey?

UPDATE

I am obviously not a geographer/cartographer, but this is getting to confusinate/fascifuse me more all the time. Based on Earthworm's answer, the exit point after "drilling through the earth" from Monterey is in the Pacific Ocean as shown with pushpin #2 here (same longitude as Monterey, with the reverse latitude):

enter image description here

However (there's almost always a "however"), based on Andy M's answer and the link he provided, these are the two points (#2 having both a different latitude AND a different longitude than Monterey, but the same longitude as Birjand, Iran):

enter image description here

The first antipodal point (Pacific Ocean) seems slightly more logical to me than the second one (Indian Ocean), but both differ from what my ungeometric brain was expecting before I delved into this, which was a point "south" (actually "negative north," I guess*) of the South Pole, "beyond" Antarctica (if ya know whaddi mean).

  • As it is impossible to go "south" of the South Pole.

UPDATE 2

I posted a substack article tangentially/partially about this here.

 //www.hoelymoley.com/questions/21222/-/21223 # 21223 12 user22279回答的如何一个起点的北极南极以北一个端点是大半个地球吗? user22279 //www.hoelymoley.com/users/0 2021 - 05 - 06 - t11:08:00z 2021 - 05 - 07 - t20:44:29z < p >在我看来,如果你正在寻找< a href = " https://en.wikipedia.org/wiki/Antipodes " rel = " noreferrer " >对映体< / >在地球表面的一个点。让我们用我们的手指(现实生活更加复杂,因为地球不是一个球体和不同坐标系统存在)。< / p > < p >你已经对映体的经度,这是你当前的经度±180°,夹到+ / - 180°(或东/西),你在伊朗的土地。从映经度,镜子在赤道(不是极)蒙特利的北纬南半球,这36°N成为36°S。< / p > < p >,相当于戳< em > < / em >直接穿过地球的中心,进入在蒙特雷和另一边。< / p > < p >毫无证明北极的距离,距离从蒙特雷北极和南极的对映体,都是一样的在这两种情况下,平凡地减去计算纬度从90°。< / p > //www.hoelymoley.com/questions/21222/-/21224 # 21224 5 安迪米回答的如何北极以南一个起点到一个端点南极以北是大半个地球吗? 安迪米 //www.hoelymoley.com/users/21672 2021 - 05 - 06 - t13:20:21z 2021 - 05 - 06 - t13:20:21z < p >有一个网站,将向您展示任何位置的对映体,并通过计算带你如果你需要它——< a href = " https://www.geodatos.net/en/antipodes/united-states/monterey " rel = " noreferrer " > https://www.geodatos.net/en/antipodes/united-states/monterey < / >。< / p > < p >看问题,和你自己的潜力的答案,你最初发表在GIS,你正确地计算经度的对映体,但你错误地计算了纬度减去你原来的纬度从90年(杆),当它被从0(赤道)。这给你一个点比它应该是南部。< / p > //www.hoelymoley.com/questions/21222/-/21225 # 21225 19 杰森Goemaat回答的如何北极以南一个起点到一个端点南极以北是大半个地球吗? 杰森Goemaat //www.hoelymoley.com/users/13537 2021 - 05 - 06 - t19:27:09z 2021 - 05 - 09 - t06:25:32z < p >我认为你太的数字。在谈到经度和纬度它们是两个不同的东西。经度是东部和西部从地球上的一个点,从0到180度东和0到180度西和描述半圆形相等长度的运行从北极到南极。不过是在度纬度北或南赤道和描述圆线绕地球变小你接近两极。看到这张图片:< / p > < p > < a href = " https://i.stack.imgur.com/74ECJ.jpg " rel = " nofollow noreferrer " > < img src = " https://i.stack.imgur.com/74ECJ.jpg " alt = "在这里输入图像描述" / > < / > < / p > < p >切片的经度楔形状给你想当你想到橙片。切片沿纬度线会给你不同大小的圆片。< / p > < p >得到相反的经度你地球在它的轴旋转180度。1度东是179度西的对立面。相反的东是170度西10度。在你的例子中,它将是来自西(经度-121.895)121.895度至58.105度(经度58.105)。< / p > < p >相反的纬度也是180度。 However there are only 180 total degrees of latitude because their shapes are different. Longitude goes from 0 to 180 degrees east and 0 to 180 degrees west giving a total of 360 degrees. Since latitude represents a circle, there are only 180 degrees, from 0 to 90 degrees north and from 0 to 90 degrees south. But you need to go a full 180 degrees. The way it works is that it is just the same degrees, just flip north and south. Think about two points on opposite sides of the planet on the equator. They are both at 0 degrees latitude. If you move north 1 degree, the opposite will now be one degree south. If you continue to 90 degrees north, the opposite is now 90 degrees south, which makes sense since the north and south pole are opposite.

So let's take Monterey, CA at 36.6 (positive is north), -121.895 (negative is west). You cannot get to the opposite side of the earth by walking along a line of latitude because all lines of latitude except for the equator are not the right size. If you divided the earth at that line of latitude you would not get two equal halves. You can however get to the opposite side of the earth by walking along lines of longitude. So say you start walking north. After 53.4 degrees of latitude you arrive at the north pole. Keep going in a straight line and you will start walking south on longitude 58.105 (positive is east). After you reach the equator you will have travelled 143.4 degrees. You have 36.6 degrees of walking south to go before you end up at -36.6 degrees latitude (negative is south). You've travelled 180 degrees in a straight line to get to the opposite side of the earth and now you're in the Indian Ocean.

 //www.hoelymoley.com/questions/21222/-/21226 # 21226 3 坦纳斯韦特的回答如何北极以南一个起点到一个端点南极以北是大半个地球吗? 坦纳斯韦特 //www.hoelymoley.com/users/8120 2021 - 05 - 06 - t22:05:01z 2021 - 05 - 06 - t22:05:01z < p >这完全取决于你到底是什么意思“环绕地球的一半标题由于北方或南方!”< / p > < p >的一个理论解释这句话,开始在蒙特雷,加利福尼亚州,你开始朝南,和你继续往南走,直到你走南的距离是半个地球的周长。(在这个答案,我假设地球是一个完美的球体)。< / p > < p >你是完全正确的思想,从理论上讲,如果你这样做,那么你会在某一时刻的南极。< / p > < p >很明显,然而,你< em > < / em >不去南极。一旦你到达南极,它是不可能继续往南走,因为每一个方向都是北方。< / p > < p >解释了这么多,只是不可能找到一个点是“一半环绕地球的标题由于北或南!”(只有两个例外:南极大半个地球北极朝南,同样地,环绕地球的北极是一半北上来自南极。)< / p > < p >然而,有另一种解释的更多意义的短语。我们可以解释这句话意味着,在蒙特利开始,加州,你开始朝南,然后你继续散步沿着地球大圆< em > < / em >直到你走的距离是半个地球的周长。如果你这样做,你就会往南走,直到你到达南极,你通过南极以后,你将走北。< / p > < p >如果你那样做,那么你最终会在蒙特雷的对映体,也就是这一点,你确定在印度洋东南部马达加斯加。< / p > < p >这听起来像你误解了< a href = " //www.hoelymoley.com/a/21223/8120 " >蚯蚓的回答< / >声称中点在西部的太平洋智利。事实上,这个答案让点在马达加斯加附近的印度洋的“中点!”< / p > < p >我不会任何意义指定点在智利以西太平洋“中点!” After all, the distance from Monterey to that point is much, much less than half the circumference of the earth.

 //www.hoelymoley.com/questions/21222/-/21235 # 21235 3 JeopardyTempest回答的如何一个起点的北极南极以北一个端点是大半个地球吗? JeopardyTempest //www.hoelymoley.com/users/6298 2021 - 05 - 08 - t15:17:40z 2021 - 05 - 08 - t15:25:05z < p >可以在南北方向去世界各地旅行…但是你也可以旅行的东西。绕赤道一半不会看到南北变化,但仍有大半个地球…所以应该明确两个对映点可以更少的南北之间的变化比北极南极。他们甚至可以管理同一纬度。< / p > < p >太平洋点关于你的第一个地图图像不能被正确的如果你看看地球仪。或者它可以帮助考虑挖山的一个类比的反思大致表示地球3 d \弯曲……在蒙特雷和如果你挖出来在同一经度在太平洋,它非常类似于戳进你的山向中心……,在你开始的同一侧。如果你要通过中心,您需要出来对面,看着地球仪,蒙特雷和SH太平洋点并不这样做。 Sort of like these crude diagrams:

enter image description here enter image description here

Likewise with digging through the Earth... there's a latitudinal component (north-south) and a longitudinal component (east-west) to all surface motion, and the ≈ 13,000 mile trip to get to the other side of the Earth will be some sort of combination of the two. The North pole to south pole trip is the extreme case where all motion is latitudinal north-south. The equator trip is the extreme case where all motion is longitudinal east-west. All other cases will require some of each, in the right proportions to aim the line between them through the center. Not unlike trying to cross from one side of a flat circular wall clock to the other. On it, you must be on the "opposite side" of the center both "up-down" and "left-right" to have passed through that center. So is the concept on the globe.

enter image description here

 //www.hoelymoley.com/questions/21222/-/21238 # 21238 2 答案由Eric Duminil如何北极以南一个起点到一个端点南极以北是大半个地球吗? Eric Duminil //www.hoelymoley.com/users/12617 2021 - 05 - 09 - t11:25:14z 2021 - 05 - 09 - t11:51:38z < p >很容易混淆,< a href = " https://en.wikipedia.org/wiki/Great-circle_distance " rel = " nofollow noreferrer " > < / >大圆距离看着平坦的地图。< / p > < p >我发现它更容易理解这个概念在看< a href = " https://en.wikipedia.org/wiki/Globe " rel = " nofollow noreferrer " > < / >,如果我没有,在谷歌地球。< / p > < p >诀窍是地球旋转和重新定义北极,所以,蒙特雷是“top"的世界。< / p > < p > < a href = " https://i.stack.imgur.com/FQI1i.jpg " rel = " nofollow noreferrer " > < img src = " https://i.stack.imgur.com/FQI1i.jpg " alt = "在这里输入图像描述" / > < / > < / p > < p >与我们的新定义:< / p > < ul > <李>蒙特利现在是北极。李李< / > < >每个方向都是“South"。李李< / > < >从蒙特利开始,每一个方向都是< a href = " https://en.wikipedia.org/wiki/Meridian_(地理)”rel = " nofollow noreferrer " >子午线< / >,和一个大圆。李李< / > < >从任何方向,如果你一直走~ 20000公里,你就会落在南极(=,< a href = " https://en.wikipedia.org/wiki/Antipodes " rel = " nofollow noreferrer " >对映体的> < /蒙特利,所提到的其他人)< /李> <李>每一个点在赤道~ 10000公里远离蒙特雷李< / > <李>对于任何给定的纬度,点在< a href = " https://en.wikipedia.org/wiki/Latitude " rel = " nofollow noreferrer " > < / >平行蒙特利都有相同的距离。李李< / > < >如果你勇往直前~ 40000公里,在任何方向,您将土地在蒙特雷。< /李> < / ul > < p >一旦你发现一个有趣的地方有这种技术,您可以使用原来的纬度/经度网格得到正确的坐标。< / p > < p >相比之下,新定义的“equator"看起来像一个正弦曲线在平坦的地图。绿色区域是“hemisphere"北部,白线代表每一个点10000公里蒙特雷:< / p > < p > < a href = " https://i.stack.imgur.com/FD56T.png " rel = " nofollow noreferrer " > < img src = " https://i.stack.imgur.com/FD56T.png " alt = "在这里输入图像描述" / > < / > < / p >
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