How can I figure out what point is exactly halfway around the world from another point?
If I don’t have a physical, spherical globe with a world map on it, how can I tell what place is halfway around the world?
Is there a website where I can put in a location or coordinates and compute the opposite point on the globe?
I tried using Google to answer this, but I must not have come up with the right search terms.
This question is in the General Section. Responses must be helpful and on-topic.