"Math and physics" search for shorter paths between two locations

Why would they say shorter, not shortest? In the process of exploration, you can always find a shorter path, in this article, will tell the author of the exploration process of the rough description.

The distance between the two locations, there are many in the natural environment, and in fact, the distance between the two positions is often preferred. But the problem is in the straight line, how to judge the path is a straight line it! In mathematics, the point line surface, point connected to the line, the line connected to the surface, the surface of the company. And what would a cubic connection be? At present, it is tentatively taken as four-dimensional space, in search of the shortest path between two locations, it is found that the possibility of the existence of four-dimensional space, if it can be confirmed in the nature of its existence, than the dimensions of the higher dimension will be possible to dig out. The meaning of it is that human beings are in three-dimensional, and from the perspective of space is limited by people's space. In the past, ultrasound, ultraviolet light, the speed of light once let people feel the limitations of people, now in the exploration of space, will be no exception.

From the point line surface to explain, two positions at one point, then the distance between two locations is how much! In conventional mathematics, distance is measured by the length of the line. But this rule can not be handled properly here, how to solve it! The length of the line is equivalent to a number of unit size points. And a point equivalent to a special line, only one unit point composition. The limit distance between two locations is close to the size of a unit point, but never reaches this value.

In order to

Two positions on one line, what is the distance between the two locations? In conventional mathematics,

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Background

Qinghai-Tibet to Beijing, through the Qinghai-Tibet railway, aircraft, high-speed rail transportation to reach the destination. However, it is possible to reach the destination by consuming a fairly short path. On Earth, the use of aircraft can be in a few days, from one place to another place, for people. These days of time consumption is people can withstand, although a few days are not willing to. In the universe, from one place to another, the manned space machines currently manufactured by humans can only be flown within the solar system. The universe, discovered through astronomical telescopes and other celestial devices, has a large space, even if people create machines that fly at the speed of light, and consume people for 100 years, and may not be able to reach anywhere in the universe.

I do not personally use the astronomical telescope to observe, the size of the universe is not a clear concept of the scope. It is obviously undesirable to spend a long time on a vehicle in order to reach somewhere in the universe. In addition to increasing the flight speed of space machines, we can find shorter paths to shorten the time of flight. In the universe there is no fixed road, we can rely on the electromagnetic waves. What else?

A long rope, incredibly can be connected to the tail.

This article from "Wind Horse a Clan" blog, declined reproduced!

"Math and physics" search for shorter paths between two locations